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Annotation of ircnowd/ChangeLog, Revision 1.1

1.1     ! tomglok     1:
        !             2:                      ngIRCd - Next Generation IRC Server
        !             3:                            http://ngircd.barton.de/
        !             4:
        !             5:                (c)2001-2021 Alexander Barton and Contributors.
        !             6:                ngIRCd is free software and published under the
        !             7:                    terms of the GNU General Public License.
        !             8:
        !             9:                                -- ChangeLog --
        !            10:
        !            11: ngIRCd 26.1 (2021-01-02)
        !            12:
        !            13:   - Fix a "format string" compiler warning (detected on OpenBSD).
        !            14:   - No longer set "AI_ADDRCONFIG" when resolving host names, even when it
        !            15:     exists: with this option set, on an IPv6-only host, we prevent 127.0.0.1
        !            16:     to get translated properly, even when the loopback interface has this
        !            17:     address configured! And as the test suite uses 127.0.0.1, it was broken
        !            18:     on IPv6-only hosts.
        !            19:     The drawback is that the resolver possibly returns more addresses now,
        !            20:     even of an unsupported/not connected address family; but this shouldn't
        !            21:     do much harm in practice, as ngIRCd iterates over all returned addresses
        !            22:     while trying to establish an outgoing connection.
        !            23:     Closes #281.
        !            24:   - Revert "Show allowed channel types in ISUPPORT(005) numeric only", which
        !            25:     was introduced in 26~rc1: This lead to some IRC clients assuming "oh, no
        !            26:     channel prefix characters at all, so no channels at all, so no PRIVMSG can
        !            27:     go to any channel" when "AllowedChannelTypes" was set to the empty string
        !            28:     ("") -- which is not the case when there are pre-defined channel set up or
        !            29:     other servers still having channels!
        !            30:     So "allowed channel types" != "supported channel types", and we always have
        !            31:     to list all supported ones in the ISUPPORT(005) numeric!
        !            32:     Closes #285.
        !            33:   - Test suite: Wait 2 seconds after reloading the daemon, which is required
        !            34:     because on reload, all listening ports are closed, configuration updated,
        !            35:     and then opened again. This lead to subsequent tests running while the
        !            36:     daemon isn't listening on any ports, and that's why some tests could fail.
        !            37:     Closes #280.
        !            38:   - platformtest.sh: Try to mangle CLang name more intelligently.
        !            39:   - Documentation: Fixed URLs of Atheme IRC services, updated all mentions
        !            40:     from CVS to Git, and updated Platforms.txt -- Oh, and it is 2021 now! ;-)
        !            41:
        !            42: ngIRCd 26 (2020-06-20)
        !            43:
        !            44:   ngIRCd 26~rc2 (2020-06-11)
        !            45:   - Add AppStream metadata file (contrib/de.barton.ngircd.metainfo.xml).
        !            46:   - Don't send invalid CHANINFO commands when a channel has mode +k set but no
        !            47:     key is known to the server. This can happen with a misconfigured predefined
        !            48:     channel, for example, and looked like this: "CHANINFO #test +Pk  0 :" --
        !            49:     note the unset key represented by the two spaces. Fix this by sending a
        !            50:     "*" in this case and update the CHANINFO documentation, too.
        !            51:   - ngircd.spec: Fix names of README.md and INSTALL.md, add ".md" extension.
        !            52:   - Update description texts in the README.md file, the RPM and Debian package
        !            53:     files and the manual page: bring them in line with the updated homepage.
        !            54:   - Server-Server protocol: Fix use-after-free when unregistering a directly
        !            55:     connected server sending a SQUIT for itself.
        !            56:   - Server-Server protocol: Detect bogus SERVER commands lacking a prefix.
        !            57:     Thanks Hilko Bengen (hillu) for finding & reporting this as well for the
        !            58:     patch & pull request (even if fixed differently).
        !            59:     Closes #275.
        !            60:   - Fix the PING-PONG logic: In ngIRCd 26~rc1 this was completely broken (while
        !            61:     trying to fix timeouts during server handshakes in bigger networks): the
        !            62:     daemon never disconnected any stale peers but kept sending out PINGs over
        !            63:     and over again ...
        !            64:   - Test suite: Add missing files needed to test SSL support to "EXTRA_DIST",
        !            65:     so that they are included in distribution archives: in rc1, "make check"
        !            66:     fails when using sources from an archive and enabling SSL support.
        !            67:     Thanks to Hilko Bengen <bengen@hilluzination.de> for the patch!
        !            68:
        !            69:   ngIRCd 26~rc1 (2020-05-10)
        !            70:   - Tweak & update doc/HowToRelease.txt, .mailmap and AUTHORS files.
        !            71:   - Allow up to 512 characters per line in MOTD and help text files (but keep
        !            72:     in mind that lines can't get that long, because they have to be prefixed
        !            73:     before being sent to the client). But this allows for more fancy MOTDs :-)
        !            74:     Closes #271.
        !            75:   - Show the actually allowed channel types in the ISUPPORT(005) numeric which
        !            76:     are configured by the "AllowedChannelTypes" configuration variable.
        !            77:     Closes #273.
        !            78:   - Handle commands in the read buffer before reading more data and don't wait
        !            79:     for the network in this case: If there are more bytes in the read buffer
        !            80:     already than a single valid IRC command can get long (513 bytes), wait for
        !            81:     this/those command(s) to be handled first and don't try to read even more
        !            82:     data from the network (which most probably would overflow the read buffer
        !            83:     of this connection soon).
        !            84:   - Update Travis-CI configuration, "sudo" is deprecated.
        !            85:   - Log G-/K-Line changes only when not initiated by a server: this prevents
        !            86:     the log from becoming spammed during "net bursts".
        !            87:   - Update test suite to include SSL tests, including checking for reloading
        !            88:     certificates during runtime.
        !            89:   - Makefile.am: Replace "make" with "${MAKE}". This fixes warnings like this:
        !            90:     "warning: jobserver unavailable: using -j1. Add `+' to parent make rule."
        !            91:     Thanks to Sam James (sam_c) <sam@cmpct.info>!
        !            92:     Closes #270.
        !            93:   - Add support for GnuTLS certificate reload, which is quite handy when using
        !            94:     Let's Encrypt, for example. Until now this was only supported when linked
        !            95:     with OpenSSL. Thanks a lot, Hilko Bengen <bengen@hilluzination.de>!
        !            96:   - Remove deprecated legacy configuration options and related functions that
        !            97:     have been marked for removal for quite some time:
        !            98:     - PredefChannelsOnly (v22)
        !            99:     - NoticeAuth (v24)
        !           100:     - NoXXX (v19)
        !           101:     - Old '[GLOBAL]' section handling (v19)
        !           102:     Thanks to Michi <michi+ngircd@dataswamp.org> for the patch!
        !           103:   - Fix recursion bug on write errors: Depending on the stack size, too many
        !           104:     clients on the same channel quitting at the same time would trigger a crash
        !           105:     due to too many recursive calls to Conn_Close(). Thanks to Michi
        !           106:     <michi+ngircd@dataswamp.org> for the patch!
        !           107:   - Fix builds using GCC option -fno-common, which is the default starting with
        !           108:     GCC 10. Thanks to Michi <michi+ngircd@dataswamp.org> for the patch!
        !           109:     Closes #266.
        !           110:   - Convert INSTALL and README files to Markdown.
        !           111:   - Allow setting arbitrary channel modes in the configuration file by handling
        !           112:     them like in MODE commands, and allow multiple "Modes =" lines per [Channel]
        !           113:     section. Thanks to Michi <michi+ngircd@dataswamp.org>!
        !           114:     Closes #55.
        !           115:   - Add "FNC" (forced nick changes) to ISUPPORT(005) numeric. Most probably
        !           116:     this doesn't make any difference to any client, but it seems correct.
        !           117:     See <http://www.irc.org/tech_docs/005.html> for details.
        !           118:   - Reuse old SSL key if loading a new one failed.
        !           119:   - Remove outdated OpenBSD/NetBSD systrace.policy.
        !           120:   - Enhance handling of command line errors, and return with exit code 0 ("no
        !           121:     error") when "--help" or "--version" is used (which resulted in exit code 1,
        !           122:     "error" before). Exit with code 2 ("command line error") for all other
        !           123:     invalid command line options, and show the error message itself on stderr
        !           124:     (instead of stdout and exit code 1, "generic error", as before).
        !           125:     This new behaviour is more in line with the GNU "coding standards",
        !           126:     see <https://www.gnu.org/prep/standards/html_node/_002d_002dhelp.html>.
        !           127:   - Fix and update Xcode project: Reference correct contrib/Makefile.am file,
        !           128:     correctly sort contrib/nglog.sh and add "ORGANIZATIONNAME" setting.
        !           129:   - contrib/ngindent.sh: Add more GNU indent options for better results, and
        !           130:     add the ".sh" suffix to bring this script in line with the others in the
        !           131:     contrib/ folder.
        !           132:   - Add ./contrib/nglog.sh: This script parses the log output of ngircd(8),
        !           133:     and colorizes the messages according to their log level. Example usage:
        !           134:     ngircd -f $PWD/doc/sample-ngircd.conf -np | ./contrib/nglog.sh
        !           135:   - Log received signals with their names using strsignal(3), when available.
        !           136:   - Make test suite compatible with Haiku OS.
        !           137:   - Fix host mask cloaking bug, don't cloak multiple times: Previously, each
        !           138:     server would cloak every user's host mask. The problem is that if a network
        !           139:     has more than one server, then a user's host mask would get cloaked twice.
        !           140:     This patch ensures that a server only cloaks the host mask if it has not yet
        !           141:     been cloaked (the period indicates it's still an IP address). Thanks to
        !           142:     JRMU <jrmu@lecturify.com> for the patch!
        !           143:     Closes #228.
        !           144:   - Enlarge buffers of info texts to 128 bytes. This includes:
        !           145:     - "Real name" of a client (4th filed of the USER command).
        !           146:     - Server info text ("Info" configuration option).
        !           147:     - Admin info texts and email address ("AdminInfo1", "AdminInfo2" and
        !           148:       "AdminEmail" configuration options).
        !           149:     - Network name ("Network" configuration option).
        !           150:     The limit was 64 bytes before ...
        !           151:     Closes #258.
        !           152:   - Streamline handling of invalid and unset server name: Don't exit during
        !           153:     runtime (REHASH command, HUP signal), because the server name can't be
        !           154:     changed in this case anyway and the new invalid name will be ignored.
        !           155:   - Fix and extend documentation: Fix some typos, fix syntax of LINKS and LIST
        !           156:     commands, whitespace and spelling fixes, update dependencies and add some
        !           157:     more information about IRCv3 support.
        !           158:     Thanks to Thanks Windree, Étienne Mollier <etienne.mollier@mailoo.org> and
        !           159:     Christoph Biedl <debian.axhn@manchmal.in-ulm.de>.
        !           160:     Closes #264.
        !           161:   - Slightly reorder startup steps, and enhance logging:
        !           162:     - Show name of configuration file at the beginning of start up.
        !           163:     - Add a message when ngIRCd is ready, including its host name.
        !           164:     - Show name of configuration file on REHASH (SIGHUP), too.
        !           165:     - Change level of "done message" to NOTICE, like "starting" & "ready".
        !           166:     - Initialize IO functions before channels, connections, clients, ...
        !           167:   - configure.ng: OpenSSL can depends on lz or latomic so use pkg-config to
        !           168:     find those dependencies and fallback to existing mechanism.
        !           169:     Closes #256.
        !           170:   - ngircd.conf.5: Fix wording as suggested by lintian.
        !           171:
        !           172: ngIRCd 25 (2019-01-23)
        !           173:
        !           174:   - Fix documentation of MotdPhrase length, which actually is 126 characters:
        !           175:     update sample configuration file as well as the man page. Thanks to
        !           176:     shankari <shankari@eecs.berkeley.edu>.
        !           177:     Closes #254.
        !           178:   - Implement new configuration option "MaxPenaltyTime", which configures the
        !           179:     maximum penalty time increase in seconds, per penalty event. Set to -1 for
        !           180:     no limit (the default), 0 to disable penalties altogether. ngIRCd doesn't
        !           181:     use penalty increases higher than 2 seconds during normal operation, so
        !           182:     values higher than 1 rarely make sense.
        !           183:     Disabling (or reducing) penalties can greatly speed up "make check" runs
        !           184:     for example, see below, but are mostly a debugging feature and normally
        !           185:     not meant to be used on production systems!
        !           186:     Some example timings running "make check" from my macOS workstation:
        !           187:      - MaxPenaltyTime not set: 4:41,79s
        !           188:      - "MaxPenaltyTime = 1":   3:14,71s
        !           189:      - "MaxPenaltyTime = 0":     25,46s
        !           190:     Closes #249 and #251.
        !           191:   - Fix compilation without deprecated OpenSSL APIs. Thanks to Rosen Penev
        !           192:     <rosenp@gmail.com> for the patch!
        !           193:     Closes #252.
        !           194:   - Update Xcode project for latest Xcode version (10.0)
        !           195:   - Fix some compiler warnings of Apple Xcode/Clang
        !           196:   - Allow a 5th parameter in WEBIRC. Thanks to "ItsOnlyBinary".
        !           197:     Closes #247.
        !           198:   - Update some more documentation files and source code comments.
        !           199:   - Platforms.txt: Add and update systems.
        !           200:
        !           201:   ngIRCd 25~rc1 (2018-08-11)
        !           202:   - Update config.guess (2018-03-08) and config.sub (2018-03-08) files.
        !           203:   - Correctly retry to establish an outgoing connections when forking of the
        !           204:     resolver sub-process failed (for example because of lack of free memory).
        !           205:     Until now, such a connection was never retried once this error was hit.
        !           206:     Thanks to Robert Obermeier for reporting this bug!
        !           207:     Closes #243.
        !           208:   - Fix a "use after free" bug which can be triggered on a newly established
        !           209:     connection when the daemon handles an ERROR command received from the peer
        !           210:     during client login. Thanks a lot to Joseph Bisch <joseph.bisch@gmail.com>
        !           211:     for discovering and reporting this issue!
        !           212:   - Only send TOPIC updates to a channel when the topic actually changed:
        !           213:     This prevents the channel from becoming flooded by unnecessary TOPIC update
        !           214:     messages, that can happen when IRC services try to enforce a certain topic
        !           215:     but which is already set (at least on the local server), for example.
        !           216:     Therefore still forward it to all servers, but don't inform local clients
        !           217:     (still update setter and timestamp information, though).
        !           218:   - Update Xcode project for latest Xcode version (9.2). This includes adding
        !           219:     missing and deleting obsolete file references.
        !           220:   - Handle user mode "C" ("Only users that share a channel are allowed to send
        !           221:     messages") like user mode "b" ("block private messages and notices"): allow
        !           222:     messages from servers, services, and IRC Operators, too. Change proposed by
        !           223:     "wowaname" back in 2015 in #ngircd, thanks!
        !           224:   - Fix some compiler warnings.
        !           225:   - Add contrib/ngircd.logcheck: Some sample logcheck(8) rules.
        !           226:   - Allow IRC Ops and remote servers to KILL service clients: such clients
        !           227:     behave like regular users, therefore IRC operators and servers should be
        !           228:     able to KILL them: for example to resolve nick collisions.
        !           229:     Closes #242.
        !           230:   - Don't forward KILLs to other servers if they've been blocked locally:
        !           231:     This prevents clients from killing IRC services, for example.
        !           232:     Closes #238 and #239.
        !           233:   - Fix a cross-compiler issue related to the Get_Error() function.
        !           234:     Closes #240 and #241.
        !           235:   - Update ./doc/Services.txt, enhance configuration examples.
        !           236:
        !           237: ngIRCd 24 (2017-01-20)
        !           238:
        !           239:   - Make sure that ./contrib/platformtest.sh aborts when ./autogen.sh fails.
        !           240:   - Update config.guess (2016-10-02) and config.sub (2016-11-04) files.
        !           241:   - Build Debian packages with OpenSSL instead of GnuTLS: OpenSSL allows
        !           242:     to reload used certificates on runtime for example (which is very
        !           243:     useful when using Let's Encrypt), and therefore is preferred. And
        !           244:     explicitly specify the "source format".
        !           245:   - Fix handling of connection pool allocation and enlargement: up to now,
        !           246:     the daemon only enlarged its connection pool when accepting new incoming
        !           247:     client or server connections, not when establishing new outgoing server
        !           248:     links, which could lead to problems when hitting the configured limit,
        !           249:     see "MaxConnections". Thanks to Lukas Braun (k00mi) for reporting this!
        !           250:     Closes #231.
        !           251:
        !           252:   ngIRCd 24~rc1 (2017-01-07)
        !           253:   - Enhance systemd service file, and install it in Debian package.
        !           254:   - Update configuration of Debian package.
        !           255:   - Log privilege violations and failed OPER request with log level "error"
        !           256:     and send it to the "&SERVER" channel, too.
        !           257:   - Immediately shut down connection when receiving an "ERROR" command,
        !           258:     don't wait for the peer to close the connection. This allows the daemon
        !           259:     to forward the received "ERROR" message in the network, instead of the
        !           260:     very generic "client closed connection" message.
        !           261:   - Fix sending of entry duration (no negative values!) when synchronizing
        !           262:     "x-lines" (G-LINES).
        !           263:   - List expiration (G-LINES): use same log level as when setting, and log
        !           264:     this event to the &SERVER channel, too.
        !           265:   - Explicitly forbid remote servers to modify "x-lines" (G-LINES) when the
        !           266:     "AllowRemoteOper" configuration option isn't set, even when the command
        !           267:     seems to originate from the remote server itself: this prevents GLINE's
        !           268:     to become set during server handshake in this case (what wouldn't be
        !           269:     possible during regular runtime when a remote IRC Op sends the command)
        !           270:     and what can't be undone by IRC Ops later on (because of the missing
        !           271:     "AllowRemoteOper" option) ...
        !           272:   - Make scripts and init-files in ./contrib executable.
        !           273:   - Fix building ngIRCd with OpenSSL 1.1. Thanks to Christoph Biedl
        !           274:     <ngircd.anoy@manchmal.in-ulm.de> for the patch!
        !           275:   - Fix code indentation warnings of gcc 6.2.
        !           276:   - Update config.guess (2016-04-02) and config.sub (2016-03-30) files.
        !           277:   - Fix warnings of the "shellcheck" linter in autogen.sh, contrib/ngindent
        !           278:     and contrib/platformtest.sh.
        !           279:   - Update Xcode project for latest Xcode version (8.0), and fix "duplicate
        !           280:     symbols" error messages when building (linking) the binary.
        !           281:   - Add "Documentation" variables to systemd configuration files.
        !           282:   - Make sure that SYSCONFDIR is always set, which can be handy when
        !           283:     using source code linters when ./configure hasn't been run already.
        !           284:   - Add the new "PAMServiceName" configuration option to specify the name
        !           285:     used as PAM service name. This setting allows to run multiple ngIRCd
        !           286:     instances with different PAM configurations for each instance.
        !           287:     Thanks to Christian Aistleitner <christian@quelltextlich.at> for the
        !           288:     patch, closes #226.
        !           289:   - Add an ".editorconfig" file to the project.
        !           290:   - Travis-CI: use "container-based infrastructure".
        !           291:   - Limit the number of message targets, and suppress duplicates: This
        !           292:     prevents an user from flooding the server using commands like this:
        !           293:     "PRIVMSG nick1,nick1,nick1,...".
        !           294:     Duplicate targets are suppressed silently (channels and clients).
        !           295:     In addition, the maximum number of targets per PRIVMSG, NOTICE, ...
        !           296:     command are limited to MAX_HNDL_TARGETS (25). If there are more, the
        !           297:     daemon sends the new 407 (ERR_TOOMANYTARGETS_MSG) numeric, containing
        !           298:     the first target that hasn't been handled any more. Closes #187.
        !           299:   - Test suite: Add new test for server-server logins.
        !           300:   - contrib/ngindent: Fix shebang line.
        !           301:   - Make contrib/platformtest.sh script more portable, and only show
        !           302:     "runs=Y" when the test suite really has been passed successfully.
        !           303:   - Code cleanup in the NJON handler and the function killing clients as
        !           304:     well as the function sending messages to a "mask" (cleaner code, more
        !           305:     fault tolerant, better code comments).
        !           306:   - Update and enhance documentation: README file, doc/Platforms.txt,
        !           307:     doc/Modes.txt, doc/Commands.txt, doc/PAM.txt.
        !           308:   - Fix NJOIN not propagating "half ops" status: ngIRCd tested for the wrong
        !           309:     prefix of "half ops" when processing NJOIN commands and therefore never
        !           310:     classified a remote user as "half op".
        !           311:     Thanks to wowaname for pointing this out on #ngircd!
        !           312:
        !           313: ngIRCd 23 (2015-11-16)
        !           314:
        !           315:   - Explicitly cast time_t to long when printing it out: this prevents
        !           316:     wrong sized data types on platforms where time_t doesn't equal a
        !           317:     long any more, for example on OpenBSD (which would result in garbled
        !           318:     output on those platforms).
        !           319:   - contrib/Debian/changelog: Fix email address.
        !           320:   - Documentation: Spelling fixes; update doc/Platforms.txt.
        !           321:
        !           322:   ngIRCd 23~rc1 (2015-09-06)
        !           323:   - Add ".clang_complete" file, which is used by the "linter-clang" package
        !           324:     of the Atom editor, for example.
        !           325:   - Make server-to-server protocol more robust: ngIRCd now catches more
        !           326:     errors on the server-to-server (S2S) protocol that could crash the
        !           327:     daemon before. This hasn't been a real problem because the IRC S2S
        !           328:     protocol is "trusted" by design, but the behavior is much better now.
        !           329:     Thanks to wowaname on #ngircd for pointing this out!
        !           330:   - Make platformtest.sh, autogen.sh, and ngircd.init more portable.
        !           331:   - Enables "reproducible builds" for ngIRCd: Use the optional BIRTHTIME
        !           332:     constant while building ngIRCd, which contains a time stamp for the
        !           333:     "Birth Date" information, in seconds since the epoch.
        !           334:     See <https://wiki.debian.org/ReproducibleBuilds>.
        !           335:   - Update "contrib/ngircd.service" file for systemd.
        !           336:   - INSTALL: Add deprecation notice for "PredefChannelsOnly" variable.
        !           337:   - Use "NOTICE *" before registration instead of "NOTICE AUTH". "AUTH" is
        !           338:     a valid nickname so sending notices to it is probably not a good idea.
        !           339:     Use "*" as the target instead as done with numerics when the nick is not
        !           340:     available. This mimics the behavior in Charybdis, IRCD-Hybrid, InspIRCd
        !           341:     2.2, Plexus 4, etc. Closes #217.
        !           342:     The "NoticeAuth" configuration variable (ngircd.conf) has been renamed
        !           343:     to "NoticeBeforeRegistration" accordingly, but the old name is still
        !           344:     supported for compatibility reasons.
        !           345:   - Implement new channel mode "N" (regular users can't change their nick
        !           346:     name while on this channel). Closes #214.
        !           347:   - README, AUTHORS: Update mailing list and issue tracker URLs.
        !           348:   - Remove doc/GIT.txt (it is outdated), update doc/Contributing.txt:
        !           349:     ngIRCd uses GitHub, and Git itself is quite common today. So don't
        !           350:     include an own Git "mini HowTo" any longer.
        !           351:   - Specify session context for OpenSSL clients. This enables some OpenSSL
        !           352:     clients, including Pidgin and stunnel 5.06, to reuse a session.
        !           353:     Patch by Tom Ryder <tom@sanctum.geek.nz>, thanks! Closes #182.
        !           354:   - Keep track of who placed bans, invites, and excepts.
        !           355:     Idea and implementation by LucentW, Thanks! Closes #203.
        !           356:   - Make setgroups(3) function optional: For example, Interix is missing
        !           357:     this function, which prevented ngIRCd to build on this platform. When
        !           358:     setgroups(3) isn't available, a warning message is issued on startup.
        !           359:   - Implement numeric RPL_LISTSTART(321). lightIRC and other clients
        !           360:     expecting RPL_LISTSTART should now behave correctly.
        !           361:     Idea and implementation by LucentW, Thanks! Closes #207.
        !           362:   - Update ngircd.conf.5: "CloakUserToNick" hides user _and_ real name.
        !           363:     This closes #208.
        !           364:   - Fix case insensitive pattern matching: Up to now, only the input
        !           365:     string became lowercased and was then compared to the pattern -- which
        !           366:     failed when the pattern itself wasn't all lowercase!
        !           367:   - Streamline the effect of "MorePrivacy" option: Update documentation
        !           368:     in ngircd.conf(5); don't hide channels for IRC Ops on LIST and don't
        !           369:     hide IP addresses/hostnames on WHOIS when "MorePrivacy" is in effect.
        !           370:     This closes #198.
        !           371:   - IRC operators now can kick anyone when "OperCanMode" is set.
        !           372:     Idea and implementation by LucentW, Thanks! Closes #202.
        !           373:   - Implement user mode "I": Hide channels on WHOIS: this mode prevents
        !           374:     ngIRCd from showing channels on WHOIS (IRC Operators can always see
        !           375:     the channel list).
        !           376:     Idea and implementation by LucentW, Thanks! Closes #197.
        !           377:   - INVITE command: Implement ERR_USERNOTONSERV(504) numeric and make sure
        !           378:     that the target user is on the same server when inviting other users
        !           379:     to local ("&") channels.
        !           380:     Idea by Cahata, thanks! Closes #183.
        !           381:   - INVITE command: Enforce 1 second penalty time, which prevents flooding
        !           382:     of the target client.
        !           383:     This closes #186. Reported by Cahata, thanks!
        !           384:   - MODE command: Always report channel creation time. Up to now when
        !           385:     receiving a MODE command, ngIRCd only reported the channel creation
        !           386:     time to clients that were members of the channel. This patch reports
        !           387:     the channel creation time to all clients, regardless if they are joined
        !           388:     to that channel or not. At least ircd-seven behaves like this.
        !           389:     This closes #188. Reported by Cahata, thanks!
        !           390:   - Update Xcode project for latest Xcode version (6.3).
        !           391:
        !           392: ngIRCd 22.1 (2015-04-06)
        !           393:
        !           394:   - Update doc/Platforms.txt and doc/FAQ.txt.
        !           395:   - Fix spelling of RPL_WHOISBOT message text.
        !           396:   - Don't send nick name as default PART reason: No other IRC daemon seems
        !           397:     to do this (today?). Closes #185.
        !           398:     Reported by Cahata in #ngircd, thanks!
        !           399:   - Fix "WHO #<chan>" showing invisible users and hiding all visible, the
        !           400:     logic was reversed! This bug has been introduced by commit c74115f2,
        !           401:     "Simplify mode checking on channels and users within a channel", ngIRCd
        !           402:     releases 21, 21.1, and 22 are affected :-( Problem reported by Cahata
        !           403:     in #ngircd, Thanks!
        !           404:   - Fix typo in src/testsuite/README
        !           405:   - Auth PING: Fix our information text for manual sending of "PONG". Up to
        !           406:     now, ngIRCd doesn't send a valid IRC command at all, oops!
        !           407:   - Auth PING: Fix internal time stamp conversion and don't send a prefix in
        !           408:     our PING command. The prefix confuses WeeChat, at least, which doesn't
        !           409:     send an appropriate PONG in the case ...
        !           410:     Debugging and patch by "wowaname" on #ngircd, thanks!
        !           411:   - Fix syntax of ERR_LISTFULL_MSG(478) numeric. Pointed out by "wowaname"
        !           412:     in #ngircd, thanks!
        !           413:   - Enhance debug messages while sending CHANINFO commands.
        !           414:   - Reset "last try" timer when enabling a passive server. This results in
        !           415:     a new connection attempt as soon as possible.
        !           416:   - Change log message for "Can't resolve address" and for IP address
        !           417:     forgeries.
        !           418:   - doc/HowToRelease.txt: Add note about the bug tracker.
        !           419:   - Update "CipherList" to not enable SSLv3 by default. Idea, initial patch,
        !           420:     and testing by Christoph Biedl <ngircd.anoy@manchmal.in-ulm.de>.
        !           421:   - Change ngIRCd test suite not to use DNS lookups: Different operating
        !           422:     systems do behave quite differently when doing DNS lookups, for example
        !           423:     "127.0.0.1" sometimes resolves to "localhost" and sometimes to
        !           424:     "localhost.localdomain" (for example OpenBSD). And other OS resolve
        !           425:     "localhost" to the real host name (for example Cygwin). So not using
        !           426:     DNS at all makes the test site much more portable.
        !           427:
        !           428: ngIRCd 22 (2014-10-11)
        !           429:
        !           430:   - Match all list patterns case-insensitive: this affects the invite-,
        !           431:     ban-, and except lists, as well as G-Lines an K-Lines.
        !           432:     Problem pointed out by "wowaname" on #ngircd, thanks!
        !           433:
        !           434:   ngIRCd 22~rc1 (2014-09-29)
        !           435:   - Sync "except lists" between servers: Up to now, ban, invite, and G-Line
        !           436:     lists have been synced between servers while linking -- but obviously
        !           437:     nobody noticed that except list have been missing ever since. Until now.
        !           438:     Thanks to "j4jackj", who reported this issue in #ngircd.
        !           439:   - Allow longer user names (up to 63 characters) for authentication.
        !           440:   - Correctly check that a server has a valid hostname and port, thanks to
        !           441:     David Binderman <dcb314@hotmail.com> who reported this bug.
        !           442:   - Fix the function which generates complete "IRC masks" from user input,
        !           443:     don't destroy the source buffer and use all provided parts (nick, user,
        !           444:     host name). This fixes GLINEs/KLINEs from not working in some situations.
        !           445:   - Increase MAX_SERVERS from 16 to 64: There are installations out there
        !           446:     that would like to configure more than 16 links per server, so increase
        !           447:     this limit. Best would be to get rid of MAX_SERVERS altogether and make
        !           448:     if fully dynamic, but start with this quick and dirty hack ...
        !           449:   - Debian: Don't adjust path names that are correct by default and correctly
        !           450:     set and use "docdir".
        !           451:   - Update config.guess and config.sub to recent versions.
        !           452:   - Test suite/platformtest.sh: Detect when tests have been skipped.
        !           453:   - doc/Bopm.txt: Update "connregex" and "kline" for current ngIRCd.
        !           454:   - Allow "DefaultUserModes" to set all possible modes, including modes only
        !           455:     settable by IRC Operators.
        !           456:   - Spoofed prefixes: Really kill connection on non-server links.
        !           457:   - Implement user mode "F": "relaxed flood protection". Clients with mode
        !           458:     "F" set are allowed to rapidly send data to the daemon. This mode is only
        !           459:     settable by IRC Operators and can cause problems in the network -- so be
        !           460:     careful and only set it on "trusted" clients!
        !           461:     User mode "F" is used by Bahamut for this purpose, for example.
        !           462:   - Handle "throttling" in a single function: ngIRCd implements "command
        !           463:     throttling" and "bps throttling" (bytes per second). The states are
        !           464:     detected in different functions, Conn_Handler() and Read_Request(), but
        !           465:     handle the actual "throttling" in a common function: this enables us to
        !           466:     guarantee consistent behavior and to disable throttling for special
        !           467:     connections in only one place
        !           468:   - Use server password when PAM is compiled in but disabled.
        !           469:   - Streamline punctuation of log messages.
        !           470:   - Return ISUPPORT(005) numerics on "VERSION". This is how ircd-seven,
        !           471:     Charybdis, Hybrid, and InspIRCd behave, for example.
        !           472:   - configure: Only link "contrib/Debian" if it exists, which isn't the case
        !           473:     on "VPATH builds", for example.
        !           474:   - Show the account name in WHOIS. This uses the same numeric as Charybdis
        !           475:     and ircu families: WHOISLOGGEDIN(330).
        !           476:   - Pattern matching: Remove "range matching" in our pattern matching code
        !           477:     using the "[...]" syntax, because [ and ] are valid characters in nick
        !           478:     names and one has to quote them currently using the "\" character, which
        !           479:     is quite unexpected for users.
        !           480:   - platformtest.sh: New option "-x", don't regenerate build system and
        !           481:     allow using separate source and build trees.
        !           482:   - Test suite: explicitly enable glibc memory checking.
        !           483:   - Make "MODE -k" handling more robust and compatible, send "fake '*' key"
        !           484:     in all replies.
        !           485:   - Update configure.ng: ngIRCd requires GNU autoconf 2.61 for generating its
        !           486:     build system, so update the build system accordingly and implement all
        !           487:     changes that autoupdate(1) suggests: Update AC_PREREQ and AC_INIT, use
        !           488:     AC_LINK_IFELSE, AC_RUN_IFELSE, and AC_COMPILE_IFELSE, and remove
        !           489:     AC_TYPE_SIGNAL (we don't use RETSIGTYPE).
        !           490:   - portabtest: Actually test the functions snprintf(), strlcpy(), strlcat(),
        !           491:     and vsnprintf() for correctness, not only existence (which was quite
        !           492:     useless, because if they weren't available, the program could not have
        !           493:     been linked at all ...).
        !           494:   - Implement new configuration option "Network": it is used to set the
        !           495:     (completely optional) "network name", to which this instance of the
        !           496:     daemon belongs. When set, this name is used in the ISUPPORT(005) numeric
        !           497:     which is sent to all clients connecting to the server after logging in.
        !           498:   - Update doc/Platforms.txt.
        !           499:   - Various code cleanups, remove unused code, streamline error handling.
        !           500:     Remove all imp.h and exp.h header files, support non-standard vsnprintf()
        !           501:     return codes, and fix some K&R C portability issues. Streamline
        !           502:     DEBUG_ARRAY, DEBUG_BUFFER, DEBUG_IO, DEBUG_ZIP definitions.
        !           503:   - Increase penalty time to 10 seconds when handling OPER commands with an
        !           504:     invalid password.
        !           505:
        !           506: ngIRCd 21.1 (2014-03-25)
        !           507:
        !           508:   - Don't ignore but use the server password when PAM is compiled in but
        !           509:     disabled. Thanks to Roy Sindre Norangshol <roy.sindre@norangshol.no>!
        !           510:   - doc/Platforms.txt: Update from master branch.
        !           511:   - Really kill connections that send "spoofed prefixes" on non-server links.
        !           512:     This fixes commit 6cbe1308 which only killed the connection when the
        !           513:     spoofed prefix itself belonged to a non-server client.
        !           514:   - CHARCONV command: Fix handling conversion errors, don't overwrite already
        !           515:     converted text!
        !           516:   - doc/Services.txt: Update information for Anope 2.x.
        !           517:   - Correctly use cloaked IRC masks on "INVITE nickname": The cloaked IRC mask
        !           518:     of a user is his visible mask, so the daemon has to use it for generating
        !           519:     the "one time" entries for the invite list of the given channel, and not
        !           520:     the "real" mask which will never match while the target client is "+x", and
        !           521:     even worse, will disclose the real mask on "MODE #channel +I" commands :-/
        !           522:     Bug reported by Cahata on #ngircd, thanks!
        !           523:   - configure: Only link "contrib/Debian" if it exists. This isn't the case on
        !           524:     "VPATH builds", for example.
        !           525:   - Use $(MKDIR_P) instead of $(mkinstalldirs) in Makefile's and test for
        !           526:     "mkdir -p" using AC_PROG_MKDIR_P in "configure".
        !           527:   - Fix configure script and "make check" for TCP Wrappers (problems spotted on
        !           528:     OpenBSD): add missing #include's and static variables, and add libwrap at
        !           529:     the end of the configure run because if libwrap becomes added earlier,
        !           530:     other tests may fail.
        !           531:   - configure: add support for the LDFLAGS_END and LIBS_END variables to add
        !           532:     linker flags and libraries at the end of the configure run (CFLAGS_END has
        !           533:     been implemented already).
        !           534:   - platformtest.sh and Makefile.am: Don't use "test -e", it isn't portable.
        !           535:   - Update Copyright notices for 2014 :-)
        !           536:   - Fix permanent {G|K}LINES (with a timeout of 0 seconds).
        !           537:   - WEBIRC: Don't set the hostname received by the WEBIRC command when DNS
        !           538:     lookups are disabled, but use the IP address instead.
        !           539:     Reported by Toni Spets <toni.spets@iki.fi>, thanks!
        !           540:   - Check for working getaddrinfo() function: At least AIX 4.3.3 and 5.1 have a
        !           541:     broken implementation of getaddrinfo() which doesn't handle "0" as numeric
        !           542:     service correctly. This patch adds a configure check for this case and
        !           543:     changes all calling functions to only use getaddrinfo() if it "works".
        !           544:     See <http://www.stacken.kth.se/lists/heimdal-discuss/2004-05/msg00059.html>
        !           545:   - Only use the unsetenv() function when it is available (AIX 4.3 doesn't
        !           546:     support it, for example).
        !           547:   - Make sure that the source code is still compatible with the "ansi2knr" tool
        !           548:     and builds using non-ANSI K&R C compilers. Tested with Apple C on A/UX.
        !           549:   - Fix building ngIRCd without support for ZLIB compression.  Reported by
        !           550:     "der_baer" on #ngircd, thanks!
        !           551:
        !           552: ngIRCd 21 (2013-10-30)
        !           553:
        !           554:   - ./contrib/Debian/ngircd.init: Make sure no stale PID file is left over
        !           555:     when (re-)starting ngIRCd.
        !           556:   - Change ./contrib/platformtest.sh and update ./doc/Platforms.txt to
        !           557:     allow user names up to 8 characters.
        !           558:   - Call arc4random_stir() in forked subprocesses, when available. This
        !           559:     is required by FreeBSD <10 and current NetBSD at least to correctly
        !           560:     initialize the "arc4" random number generator on these platforms.
        !           561:   - Update our own Debian package configuration and fix the default path
        !           562:     of the "HelpFile" of the "full" package variants.
        !           563:
        !           564:   ngIRCd 21~rc2 (2013-10-20)
        !           565:   - Report the correct configuration file name on configuration errors,
        !           566:     support longer configuration lines, and warn when lines are truncated.
        !           567:   - Use arc4random() function to generate "random" numbers, when available.
        !           568:   - platformtest.sh: Detect clang compiler, and clean up GIT source tree
        !           569:     before building (when possible).
        !           570:   - Update (date of) manual pages.
        !           571:   - Update "Upgrade Information" in INSTALL file, add more systems to
        !           572:     doc/Platforms.txt, and fix spelling in NEWS and ChangeLog files =:)
        !           573:   - Fix remaining compiler warnings on OpenBSD.
        !           574:
        !           575:   ngIRCd 21~rc1 (2013-10-05)
        !           576:   - Actually KILL clients on GLINE/KLINE. (Closes bug #156)
        !           577:   - Adjust log messages for invalid and spoofed prefixes, which cleans up
        !           578:     logging of commands related to already KILL'ed clients. And don't
        !           579:     forward KILL commands for (already) unknown clients any more to prevent
        !           580:     unnecessary duplicates.
        !           581:   - Add support to show all user links using the "STATS L" (uppercase)
        !           582:     command (restricted to IRC Operators).
        !           583:   - Fixed blocking of server reconnects in some error configurations.
        !           584:   - Don't ignore SSL-related errors during startup any more: abort startup
        !           585:     when SSL is requested by the configuration but can't be initialized and
        !           586:     don't continue only listening on plain text communication ports.
        !           587:     (Closes bug #163)
        !           588:   - Implement configurable SSL cipher list selection for GnuTLS and OpenSSL
        !           589:     using the new configuration option "CipherList". In addition, this
        !           590:     changes the defaults to more secure values: "HIGH:!aNULL:@STRENGTH" for
        !           591:     OpenSSL, and "SECURE128" for GnuTLS.
        !           592:   - Fix "TRACE": Correctly return ERR_NEEDMOREPARAMS(461) (which basically
        !           593:     is "syntax error") when there are too many parameters.
        !           594:   - Clean up lots of permission and parameter checks in functions handling
        !           595:     IRC commands; and more consistently add penalty times on errors.
        !           596:   - Fix error numeric of WHOIS when no nick name has been provided:
        !           597:     as per RFC it should be ERR_NONICKNAMEGIVEN(431).
        !           598:   - Only log "IDENT ... no result" messages when an IDENT looked took place
        !           599:     and didn't return any data, not when IDENT has been disabled.
        !           600:   - Show connection flag "s" (SSL) in RPL_TRACE{LINK|SERVER} messages: now
        !           601:     you can check if a server-to-server link is SSL-encrypted or not using
        !           602:     the IRC "TRACE" command.
        !           603:   - Correctly discard supplementary groups on server startup.
        !           604:   - Save client IP address text for "WebIRC" users and correctly display
        !           605:     it on WHOIS, for example. (Closes bug #159)
        !           606:   - Implement the new configuration option "DefaultUserModes" which lists
        !           607:     user modes that become automatically set on new local clients right
        !           608:     after login. Please note that only modes can be set that the client
        !           609:     could set on itself, so you can't set "a" (away) or "o" (IRC Op),
        !           610:     for example! User modes "i" (invisible) or "x" (cloaked) etc. are
        !           611:     "interesting", though. (Closes bug #160)
        !           612:   - Add support for the new METADATA "account" property, which allows
        !           613:     services to automatically identify users after netsplits and across
        !           614:     service restarts.
        !           615:   - Enforce "penalty times" on error conditions more consistently and in
        !           616:     more places. Now most error codes sent back from the IRC server to the
        !           617:     client should result in a 2 second "penalty".
        !           618:   - Implement a new configuration option "AllowedChannelTypes" that lists
        !           619:     all allowed channel types (channel prefixes) for newly created channels
        !           620:     on the local server. By default, all supported channel types are allowed.
        !           621:     If set to the empty string, local clients can't create new channels at
        !           622:     all, which equals the old "PredefChannelsOnly = yes" setting.
        !           623:     This change deprecates the "PredefChannelsOnly" variable, too, but it is
        !           624:     still supported and translated to the appropriate "AllowedChannelTypes"
        !           625:     setting. When the old "PredefChannelsOnly" variable is processed, a
        !           626:     warning message is logged. (Closes bug #152)
        !           627:   - Add support for "client certificate fingerprinting". When a client
        !           628:     passes an SSL certificate to the server, the "fingerprint" will be
        !           629:     forwarded in the network which enables IRC services to identify the
        !           630:     user using this certificate and not using passwords.
        !           631:   - IRC Operator names, as defined in ngircd.conf, are logged now when
        !           632:     handling successful OPER commands.
        !           633:   - Some error conditions while handling IRC commands, like "permission
        !           634:     denied" or "need more parameters", result in more penalty times.
        !           635:   - The numeric replies of some commands became split too early which
        !           636:     resulted in more numeric reply lines than necessary.
        !           637:   - Implement a new configuration option "IncludeDir" in the "[Options]"
        !           638:     section that can be used to specify a directory which can contain
        !           639:     further configuration files and configuration file snippets matching
        !           640:     the pattern "*.conf". These files are read in after the main server
        !           641:     configuration file ("ngircd.conf" by default) has been read in and
        !           642:     parsed.  The default is "$SYSCONFDIR/ngircd.conf.d", so that it is
        !           643:     possible to adjust the configuration only by placing additional files
        !           644:     into this directory. (Closes bug #157)
        !           645:   - Fix use-after-free in the Lists_CheckReason() function, which is used
        !           646:     to check if a client is a member of a particular ban/invite/... list.
        !           647:   - Xcode: fix detection of host OS, vendor, and CPU type, and update
        !           648:     project settings for Xcode 5.
        !           649:   - OS X PackageMaker: use relative path names in project files and package
        !           650:     with correct file permissions (requires root privileges on "make").
        !           651:   - Add Travis-CI configuration file (".travis.yml") to project.
        !           652:   - Look for possible cloaked Masks in Lists. Users with +x user mode can
        !           653:     be banned with their cloaked hostname now.
        !           654:   - Don't read SSL client data before DNS resolver is finished which could
        !           655:     have resulted in discarding the resolved client hostname and IDENT
        !           656:     reply afterwards, because in some situations (timing dependent) the
        !           657:     NICK and USER commands could have already been read in from the client,
        !           658:     stored in the buffer, and been processed.
        !           659:     Thanks to Julian Brost for reporting the issue and testing, and to
        !           660:     Federico G. Schwindt <fgsch@lodoss.net> for helping to debug it!
        !           661:   - Increase password length limit to 64 characters. (Closes bug #154)
        !           662:   - doc/Services.txt: Update Anope status and URL.
        !           663:   - Clean up Xcode project file, remove outdated files, add missing ones.
        !           664:   - Update Doxygen configuration file.
        !           665:   - configure: search for iconv_open as well as libiconv_open, because
        !           666:     on some installations iconv_open() is actually libiconv_open().
        !           667:     iconv_open() is the glibc version while libiconv_open() is the
        !           668:     libiconv version, now both variants are supported. (Closes bug #151)
        !           669:   - ngIRCd now accepts user names including "@" characters, saves the
        !           670:     unmodified name for authentication but stores only the part in front
        !           671:     of the "@" character as "IRC user name". And the latter is how
        !           672:     ircd2.11, Bahamut, and irc-seven behave as well. (Closes bug #155)
        !           673:   - Lots of IRC "information functions" like ADMIN, INFO, ... now accept
        !           674:     server masks and names of connected users (in addition to server names)
        !           675:     for specifying the target server of the command. (Closes bug #153)
        !           676:   - Implement a new configuration option "IdleTimeout" in the "[Limits]"
        !           677:     section of the configuration file which can be used to set a timeout
        !           678:     in seconds after which the whole daemon will shutdown when no more
        !           679:     connections are left active after handling at least one client.
        !           680:     The default is 0, "never".
        !           681:     This can be useful for testing or when ngIRCd is started using "socket
        !           682:     activation" with systemd(8), for example.
        !           683:   - Implement support for systemd(8) "socket activation".
        !           684:   - contrib/README: add description for more files.
        !           685:   - Enable WHOIS to display information about IRC Services using the new
        !           686:     numeric 310(RPL_WHOISSERVICE) This numeric is used for this purpose by
        !           687:     InspIRCd, for example -- but as usual, other numerics are in use, too,
        !           688:     like 613 in UltimateIRCd ...
        !           689:     Please note that neither the Operator (+o) not the "bot status" (+B)
        !           690:     of an IRC service is displayed in the output.
        !           691:   - Exit message: use singular & plural :-)
        !           692:   - autogen.sh: Check for autoconf/automake wrapper scripts
        !           693:   - Add missing punctuation marks in log messages, adjust some severity
        !           694:     levels, and make SSL-related messages more readable.
        !           695:   - AUTHORS file: Update list of contributors.
        !           696:   - Update systemd(8) example configuration files in ./contrib/ directory:
        !           697:     the "ngircd.service" file now uses the "forking" service type which
        !           698:     enhances the log messages shown by "systemctl status ngircd.service",
        !           699:     and the new "ngircd.socket" file configures a systemd socket that
        !           700:     configures a socket for ngIRCd and launches the daemon on demand.
        !           701:   - Enhance help system and the HELP command: now a "help text file" can be
        !           702:     set using the new configuration option "HelpFile" ("global" section),
        !           703:     which is read in and parsed on server startup and configuration reload,
        !           704:     and then is used to output individual help texts to specific topics.
        !           705:     Please see the file ./doc/Commands.txt for details.
        !           706:
        !           707: ngIRCd 20.3 (2013-08-23)
        !           708:
        !           709:   - Security: Fix a denial of service bug (server crash) which could happen
        !           710:     when the configuration option "NoticeAuth" is enabled (which is NOT the
        !           711:     default) and ngIRCd failed to send the "notice auth" messages to new
        !           712:     clients connecting to the server (CVE-2013-5580).
        !           713:
        !           714: ngIRCd 20.2 (2013-02-15)
        !           715:
        !           716:   - Security: Fix a denial of service bug in the function handling KICK
        !           717:     commands that could be used by arbitrary users to crash the daemon
        !           718:     (CVE-2013-1747).
        !           719:   - WHO command: Use the currently "displayed hostname" (which can be cloaked!)
        !           720:     for hostname matching, not the real one. In other words: don't display all
        !           721:     the cloaked users on a specific real hostname!
        !           722:   - configure: The header file "netinet/in_systm.h" already is optional in
        !           723:     ngIRCd, so don't require it in the configure script. Now ngIRCd can be
        !           724:     built on Minix 3 again :-)
        !           725:   - Return better "Connection not registered as server link" errors: Now ngIRCd
        !           726:     returns a more specific error message for numeric ERR_NOTREGISTERED(451)
        !           727:     when a regular user tries to use a command that isn't allowed for users but
        !           728:     for servers.
        !           729:   - Don't report ERR_NEEDMOREPARAMS(461) when a MDOE command with more modes
        !           730:     than nicknames is handled, as well as for channel limit and key changes
        !           731:     without specifying the limit or key parameters.
        !           732:     This is how a lot (all?) other IRC servers behave, including ircd2.11,
        !           733:     InspIRCd, and ircd-seven. And because of clients (tested with Textual and
        !           734:     mIRC) sending bogus MODE commands like "MODE -ooo nick", end-users got the
        !           735:     expected result as well as correct but misleading error messages ...
        !           736:   - Correctly detect when SSL subsystem must be initialized and take
        !           737:     outgoing connections (server links!) into account, too.
        !           738:   - autogen.sh: Enforce serial test harness on GNU automake >=1.13. The
        !           739:     new parallel test harness which is enabled by default starting with
        !           740:     automake 1.13 isn't compatible with our test suite.
        !           741:     And don't use "egrep -o", instead use "sed", because it isn't portable
        !           742:     and not available on OpenBSD, for example.
        !           743:
        !           744: ngIRCd 20.1 (2013-01-02)
        !           745:
        !           746:   - Allow ERROR command on server and service links only, ignore them and
        !           747:     add a penalty time on all other link types.
        !           748:   - Enforced mode setting by IRC Operators: Only check the channel user
        !           749:     modes of the initiator if he is joined to the channel and not an IRC
        !           750:     operator enforcing modes (which requires the configuration option
        !           751:     "OperCanUseMode" to be enabled), because trying to check channel user
        !           752:     modes of a non-member results in an assertion when running with debug
        !           753:     code or could crash the daemon otherwise. This closes bug #147, thanks
        !           754:     to James Kirwill <james.kirwill@bk.ru> for tracking this down!
        !           755:   - Fix build system to cope with spaces in path names.
        !           756:   - Code cleanups, mostly to fix build warnings on Cygwin.
        !           757:
        !           758: ngIRCd 20 (2012-12-17)
        !           759:
        !           760:   - Allow user names ("INDENT") up to 20 characters when ngIRCd has not
        !           761:     been configured for "strict RFC mode". This is useful if you are using
        !           762:     external (PAM) authentication mechanisms that require longer user names.
        !           763:     Patch suggested by Brett Smith <brett@w3.org>, see
        !           764:     <http://arthur.barton.de/pipermail/ngircd-ml/2012-October/000579.html>.
        !           765:
        !           766:   ngIRCd 20~rc2 (2012-12-02)
        !           767:   - Rework cloaked hostname handling and implement the "METADATA cloakhost"
        !           768:     subcommand: Now ngIRCd uses two fields internally, one to store the
        !           769:     "real" hostname and one to save the "cloaked" hostname. This allows
        !           770:     "foreign servers" (aka "IRC services") to alter the real and cloaked
        !           771:     hostnames of clients without problems, even when the user itself issues
        !           772:     additional "MODE +x" and "MODE -x" commands.
        !           773:   - RPL_UMODEIS: send correct target name, even on server links.
        !           774:   - Update platformtest.sh to follow autoconf changes and only generate
        !           775:     the "configure" script when it is missing.
        !           776:   - Fix the test suite to correctly execute test scripts even when stdout
        !           777:     is redirected.
        !           778:   - Fix some compiler warnings on NetBSD and OpenBSD.
        !           779:
        !           780:   ngIRCd 20~rc1 (2012-11-11)
        !           781:   - Update doc/Services.txt: describe the upcoming version of Anope 1.9.8,
        !           782:     then including a protocol module for ngIRCd. And remove our own patches
        !           783:     in ./contrib/Anope because they aren't supported any more ...
        !           784:   - Implement new "METADATA" command which can be used by remote servers
        !           785:     and IRC services to update client metadata like the client info text
        !           786:     ("real name"), user name, and hostname, and use this command to
        !           787:     configure an cloaked hostname (user mode "+x") on remote servers:
        !           788:     This prevents "double cloaking" of hostnames and even cloaked
        !           789:     hostnames are in sync on all servers supporting "METADATA" now.
        !           790:   - Fix error message when trying to join non-predefined channels and the
        !           791:     "PredefChannelsOnly" configuration option is set.
        !           792:   - Implement new IRC "SVSNICK" command to allow remote servers (and IRC
        !           793:     services) to change nicknames of already registered users. The SVSNICK
        !           794:     command itself doesn't change the nickname, but it becomes forwarded
        !           795:     to the server to which the user is connected to. And then this server
        !           796:     initiates the real nickname changing using regular NICK commands.
        !           797:     This allows to run mixed networks with old servers not supporting the
        !           798:     SVSNICK command, because SVSNICK commands for nicknames on such servers
        !           799:     are silently ignored and don't cause a desynchronization of the network.
        !           800:   - Make server reconnect time a little bit more random, so that two
        !           801:     servers trying to connect to each other asynchronously don't try this
        !           802:     in exactly the same time periods and kick each other off ...
        !           803:   - Don't accept connections for servers already being linked: there was a
        !           804:     time frame that could result in one connection overwriting the other,
        !           805:     e. g. the incoming connection overwriting the status of the outgoing
        !           806:     one. And this could lead to all kind of weirdness (even crashes!) later
        !           807:     on: now such incoming connections are dropped.
        !           808:   - New configuration option "MaxListSize" to configure the maximum number
        !           809:     of channels returned by a LIST command. The default is 100, as before.
        !           810:   - Implement user mode "b", "block messages": when a user has set mode "b",
        !           811:     all private messages and notices to this user are blocked if they don't
        !           812:     originate from a registered user, an IRC Op, server or service. The
        !           813:     originator gets an error numeric sent back in this case,
        !           814:     ERR_NONONREG_MSG (486), which is used by UnrealIRCd, too. (Closes #144)
        !           815:   - WHOIS: Not only show RPL_WHOISHOST_MSG to local IRC operators, but show
        !           816:     it to all IRC operators in the network. And don't show it to anybody if
        !           817:     the "more privacy" configuration option is enabled. (Closes #134)
        !           818:   - Test suite: make expect scripts more verbose displaying dots for each
        !           819:     reply of the server that it is waiting for.
        !           820:   - WHOIS: Implement numeric RPL_WHOISMODES_MSG (379) and show user modes in
        !           821:     the reply of the WHOIS command for the user himself or, if MorePrivacy
        !           822:     isn't set, for request initiated by an IRC operator. (Closes #129)
        !           823:   - Implement channel mode "V" (invite disallow): If the new channel mode
        !           824:     "V" is set, the INVITE command becomes invalid and all clients get the
        !           825:     new ERR_NOINVITE_MSG (518) reply. (Closes #143)
        !           826:   - KICK-protect IRC services.
        !           827:   - Implement channel mode "Q" and user mode "q": Both modes protect users
        !           828:     from channel kicks: only IRC operators and servers can kick users having
        !           829:     mode "q" or in channels with mode "Q". (Closes #141)
        !           830:   - Debian: require "telnet" or "telnet-ssl" for building and enable
        !           831:     CHARCONV in ngircd-full[-dbg] variants.
        !           832:   - Send RPL_REHASHING (382) numeric if a REHASH command was accepted.
        !           833:   - Fix spelling and variable names in some log messages.
        !           834:   - Allow users to "cloak" their hostname only when the configuration
        !           835:     variable "CloakHostModeX" (introduced in 19.2) is set. Otherwise, only
        !           836:     IRC operators, other servers, and services are allowed to set the user
        !           837:     mode "+x": this prevents regular users from changing their hostmask to
        !           838:     the name of the IRC server itself, which confused quite a few people ;-)
        !           839:     (Closes #133)
        !           840:   - New configuration option "OperChanPAutoOp": If disabled, IRC operators
        !           841:     don't become channel operators in persistent channels when joining.
        !           842:     Enabled by default, which has been the behavior of ngIRCd up to this
        !           843:     patch. (Closes #135)
        !           844:   - Allow IRC operators to see secret (+s) channels in LIST command as long
        !           845:     as the "MorePrivacy" configuration option isn't enabled in the
        !           846:     configuration file. (Closes #136)
        !           847:   - Enhance build system: Support new (>=1.12) and old (<=1.11) GNU automake
        !           848:     versions, update checks for required and optional features, enable
        !           849:     colored test output of automake (if available), rename configure.in to
        !           850:     more modern configure.ac, include .mailmap and all build-system files in
        !           851:     distribution archives and no longer require a GIT tree to detect the
        !           852:     correct version string.
        !           853:   - Update documentation: add doc/Contributing.txt and include version
        !           854:     numbers in doc/Modes.txt.
        !           855:   - Free all listen ports on initialization: now listen ports can be
        !           856:     reconfigured on runtime using a configuration reload.
        !           857:   - Initialize SSL when needed only, and disable SSL on errors.
        !           858:   - Implement new (optional) IRC+ "CHARCONV" command to set a client
        !           859:     character set that the server translates all messages to/from UTF-8.
        !           860:     This feature requires the "libiconv" library and must be enabled using
        !           861:     the new "--with-iconv" option of the ./configure script. See
        !           862:     doc/Protocol.txt for details. (Closes #109)
        !           863:   - Allow limited punctuation in usernames, for better PAM integration.
        !           864:   - Correctly re-initialize signal handlers on RESTART commands.
        !           865:   - Show a warning on startup if the configuration file is not a full path:
        !           866:     ngIRCd is a long-running process and changes its working directory to
        !           867:     "/" to not block mounted filesystems and the like when running as daemon
        !           868:     ("not in the foreground"); therefore the path to the configuration file
        !           869:     must be relative to "/" (or the chroot() directory), which basically is
        !           870:     "not relative", to ensure that "kill -HUP" and the "REHASH" command work
        !           871:     as expected later on. (Closes #127)
        !           872:   - Make the "&SERVER" channel definable in a [Channel] configuration block,
        !           873:     which enables server operators to overwrite the built-in topic and
        !           874:     channel modes. (Closes #131)
        !           875:   - Don't limit list size of "WHO #channel" commands, because it makes no
        !           876:     sense to not return all the users in that channel, so I removed the
        !           877:     check. But if there are more than MAX_RPL_WHO(25) replies, the client
        !           878:     requesting the list will be "penalized" one second more, then 2 in
        !           879:     total. (Closes #125)
        !           880:   - Make ngIRCd buildable using the kqueue() IO interface on FreeBSD 4.x.
        !           881:   - Fix the "NoticeAuth" configuration option when using SSL connections and
        !           882:     enhance the message to show the hostname and IDENT reply of the client.
        !           883:   - Introduce numeric RPL_HOSTHIDDEN_MSG (396): This numeric is sent to the
        !           884:     client each time it changes its displayed hostname using "MODE +/-x",
        !           885:     and if "CloakHost" is set right after the MOTD has been sent.
        !           886:   - Fix USERHOST not displaying the correctly cloaked hostname.
        !           887:   - Implement user mode "B" ("Bot flag"): it is settable and unsettable by
        !           888:     every (non-restricted) client. This is how Unreal and InspIRCd do
        !           889:     behave, and so do we :-)
        !           890:   - Dynamically allocate memory for connection passwords: This a) saves
        !           891:     memory for clients not using passwords at all and b) allows for
        !           892:     "arbitrarily" long passwords.
        !           893:   - Implement channel mode "M": Only the server, identified users and IRC
        !           894:     operators are able to talk in such a channel.
        !           895:   - Block nicknames that are reserved for services and are defined using the
        !           896:     configuration variable "ServiceMask" in "Server" blocks; And this
        !           897:     variable now can handle more than one mask separated by commas.
        !           898:   - Now "make uninstall" removes the installed "ngircd.conf" file, if it is
        !           899:     still equal to our "sample-ngircd.conf" file and therefore hasn't been
        !           900:     modified by the user. If it has been modified, it isn't removed and a
        !           901:     notice is displayed to the user. And "make install" now displays a
        !           902:     message when no ngircd.conf file exists and the "sample-ngircd.conf"
        !           903:     file will be installed as a starting point.
        !           904:   - Add contrib/ngircd.service, a systemd service file for ngircd.
        !           905:   - Implemented XOP channel user modes: "Half Op" ("+h", prefix "%") can set
        !           906:     the channel modes +imntvIbek and kick all +v and normal users; "Admin"
        !           907:     ("+a", prefix "&") can set channel modes +imntvIbekoRsz and kick all +o,
        !           908:     +h, +v and normal users; and "Owner" ("+q", prefix "~") can set channel
        !           909:     modes +imntvIbekoRsz and kick all +a, +o, +h, +v and normal users.
        !           910:   - Implement hashed cloaked hostnames for both the "CloakHost" and
        !           911:     "CloakHostModeX" configuration options: now the admin can use the new
        !           912:     '%x' placeholder to insert a hashed version of the clients hostname,
        !           913:     and the new configuration option "CloakHostSalt" defines the salt for
        !           914:     the hash function. When "CloakHostSalt" is not set (the default), a
        !           915:     random salt will be generated after each server restart. (Closes #133)
        !           916:
        !           917: ngIRCd 19.2 (2012-06-19)
        !           918:
        !           919:   - doc/Capabilities.txt: document "multi-prefix" capability
        !           920:
        !           921:   ngIRCd 19.2~rc1 (2012-06-13)
        !           922:   - New configuration option "CloakHostModeX" to configure the hostname
        !           923:     that gets used for IRC clients which have user mode "+x" enabled.
        !           924:     Up to now, the name of the IRC server itself has been used for this,
        !           925:     which still is the default when "CloakHostModeX" isn't set.
        !           926:   - Correctly handle asynchronously re-established server links: a race
        !           927:     condition could let the daemon loose track of an already re-established
        !           928:     incoming server link while preparing its own outgoing connection.
        !           929:     Peers that both try to connect each other could have been affected.
        !           930:   - Log a debug message when SIGUSR2 is handled in debug mode.
        !           931:   - Only allow alphanumeric characters in user-supplied user names of
        !           932:     USER command and IDENT replies.
        !           933:   - Change wording of "TLS initialized" message to make it more consistent.
        !           934:   - Don't leak file descriptors on error path when creating "PID files".
        !           935:   - Add missing mode "r" to CHANMODES in 005 "ISUPPORT" numeric.
        !           936:   - Update doc/Modes.txt and doc/Platforms.txt documents.
        !           937:   - contrib/platformtest.sh: correctly detect Open64 C compiler and handle
        !           938:     "CC=xxx MAKE=yyy ./platformtest.sh" calling convention.
        !           939:   - Add instructions for setting up Atheme IRC services.
        !           940:   - Implement support for IRC capability handling, the new "CAP" command,
        !           941:     and capability "multi-prefix" which allows both the NAME and WHO command
        !           942:     handlers to return more than one "class prefix" to the client.
        !           943:   - Update Xcode project files: reference missing documentation files.
        !           944:   - Fix: Don't ignore "permission denied" errors when enabling chroot.
        !           945:   - FAQ: enhance description of chroot setup.
        !           946:
        !           947: ngIRCd 19.1 (2012-03-19)
        !           948:
        !           949:   - Fix gcc warning (v4.6.3), initialize "list" variable to NULL.
        !           950:   - Fix typos: "recieved" -> "received", "Please not" -> "Please note",
        !           951:     and fix lintian(1) warning ""hyphen-used-as-minus-sign", too.
        !           952:   - Really include _all_ patches to build the Anope module into the
        !           953:     distribution archive ... ooops!
        !           954:   - getpid.sh: Fix test case error for Debian using sbuild(1).
        !           955:   - Don't log "ngIRCd hello message" two times when starting up.
        !           956:
        !           957: ngIRCd 19 (2012-02-29)
        !           958:
        !           959:   - Update build system: bump config.guess and config.sub files used by
        !           960:     GNU autoconf/automake to recent versions.
        !           961:   - Fix configuration file parser: don't accept "[SSL]" blocks in the
        !           962:     configuration file when no SSL support is built in ngIRCd.
        !           963:   - Fix building ngIRCd with old gcc versions (e. g. 2.7.2).
        !           964:   - Correctly re-open syslog logging after reading of configuration
        !           965:     file: Syslog logging has been initialized before reading the
        !           966:     configuration, so ngIRCd always used the default facility and ignored
        !           967:     the "SyslogFacility" configuration option ...
        !           968:     Thanks to Patrik Schindler for reporting this issue!
        !           969:
        !           970:   ngIRCd 19~rc1 (2012-02-12)
        !           971:   - Enhance command limits for server links: the limit now is dependent
        !           972:     on the number of users connected in the network and higher while
        !           973:     servers are joining the network to make the login of servers faster.
        !           974:   - Log more information about server synchronization.
        !           975:   - Update preliminary ngIRCd protocol module for Anope 1.9.6, which now
        !           976:     is the only supported version.
        !           977:   - New numeric RPL_WHOISHOST_MSG(378), which returns the DNS host name
        !           978:     (if available) and the IP address of a client in the WHOIS reply.
        !           979:     Only the user itself and local IRC operators get this numeric.
        !           980:   - Implement channel exception list (mode 'e'). This allows a channel
        !           981:     operator to define exception masks that allow users to join the
        !           982:     channel even when a "ban" would match and prevent them from joining:
        !           983:     the exception list (e) overrides the ban list (b).
        !           984:   - PRIVMSG and NOTICE: Handle nick!user@host masks case-insensitive.
        !           985:   - Implement user mode 'C': If the target user of a PRIVMSG or NOTICE
        !           986:     command has the user mode 'C' set, it is required that both sender
        !           987:     and receiver are on the same channel. This prevents private flooding
        !           988:     by completely unknown clients.
        !           989:   - New RPL_WHOISREGNICK_MSG(307) numeric in WHOIS command replies: it
        !           990:     indicates if a nickname is registered (if user mode 'R' set).
        !           991:   - Limit channel invite, ban, and exception lists to 50 entries and fix
        !           992:     duplicate check and error messages when adding already listed entries
        !           993:     or deleting no (longer) existing ones.
        !           994:   - Fix both ERR_SUMMONDISABLED(445) and ERR_USERSDISABLED(446) replies.
        !           995:   - MODE command: correctly return ERR_UNKNOWNMODE(472) numeric for
        !           996:     unknown channel modes, instead of ERR_UMODEUNKNOWNFLAG(501).
        !           997:   - ISUPPORT(005) numeric: add "O", "R", and "z" modes to "CHANMODES",
        !           998:     add "EXCEPTS=e" and "INVEX=I", add "MAXLIST=beI:50".
        !           999:   - Limit the number of list items in the reply of LIST (100), WHO (25),
        !          1000:     WHOIS (10), and WHOWAS (25) commands.
        !          1001:   - LIST command: compare pattern case insensitive.
        !          1002:   - Limit the MODE command to handle a maximum number of 5 channel modes
        !          1003:     that require an argument (+Ibkl) per call and report this number
        !          1004:     in the ISUPPORT(005) numeric: "MODES=5".
        !          1005:   - Fix handling of channel mode sequence with/without arguments.
        !          1006:     For example, don't generate wrong error messages when handling
        !          1007:     "MODE #chan +IIIIItn *!aa@b *!bb@c *!cc@d *!dd@e *!ee@f".
        !          1008:   - When sending data on a connection, only try to get the type of
        !          1009:     the client if there still is one assigned. This could trigger an
        !          1010:     assertion and end the daemon in some error paths.
        !          1011:   - Don't try to close already closed/invalid sockets to forked child
        !          1012:     processes. This could potentially crash the daemon in some cases
        !          1013:     with IDENT lookups enabled.
        !          1014:   - WHOIS command: make sure that the reply ends with RPL_ENDOFWHOIS,
        !          1015:     don't answer queries for IRC servers, make sure mask matching is
        !          1016:     case-insensitive, and that RPL_ENDOFWHOIS numeric is sent with the
        !          1017:     unmodified mask (like it has been received from the client).
        !          1018:   - LINKS command: support <mask> parameter to limit the reply.
        !          1019:   - Add 1 second penalty for every further target on PRIVMSG/NOTICE
        !          1020:     commands: this reduces the possibility of flooding channels with
        !          1021:     commands like "PRIVMSG/NOTICE #a,#n,#c,... :message" a little bit.
        !          1022:     Problem noticed by Cahata, thanks!
        !          1023:   - Display correct error message when "Server{UID|GID}" variable in the
        !          1024:     configuration file is invalid (not a number and no existing user).
        !          1025:   - Update Copyright notices for 2012 :-)
        !          1026:   - JOIN command: don't stop handling of channel lists when a single
        !          1027:     channel cannot be joined (because of bad name, wrong key or channel
        !          1028:     limit reached), but report an error and continue. And don't check
        !          1029:     the channel limit and don't report with "too many channels" when
        !          1030:     trying to join a channel that the client already is a member of.
        !          1031:   - ISON command: reply with the correct upper-/lowercase nicknames.
        !          1032:   - New configuration option "PAMIsOptional": when set, clients not
        !          1033:     sending a password are still allowed to connect: they won't become
        !          1034:     "identified" and keep the "~" character prepended to their supplied
        !          1035:     user name. See "man 5 ngircd.conf" for details.
        !          1036:   - Fixed handling of WHO commands. This fixes two bugs: "WHO <nick>"
        !          1037:     returned nothing at all if the user was "+i" (reported by Cahata,
        !          1038:     thanks) and "WHO <nick|nickmask>" returned channel names instead
        !          1039:     of "*" when the user was member of a (visible) channel.
        !          1040:   - Fixed some spelling errors in documentation and code comments
        !          1041:     (Thanks to Christoph Biedl).
        !          1042:   - contrib/Debian/control: Update and complete "Build-Depends" and
        !          1043:     update our Debian package descriptions with "official" ones.
        !          1044:   - Fixed typo in two error messages.
        !          1045:   - LUSERS reply: only count channels that are visible to the requesting
        !          1046:     client, so the existence of secret channels is no longer revealed by
        !          1047:     using LUSERS. Reported by Cahata, thanks!
        !          1048:   - Unknown user and channel modes no longer stop the mode parser, but
        !          1049:     are simply ignored. Therefore modes after the unknown one are now
        !          1050:     handled. This is how ircd2.10/ircd2.11/ircd-seven behave, at least.
        !          1051:     Reported by Cahata, thanks!
        !          1052:   - README: Update list of implemented commands.
        !          1053:   - Log better error messages when rejecting clients.
        !          1054:   - Implement IRC commands "GLINE" and "KLINE" to ban users. G-Lines are
        !          1055:     synchronized between server on peering, K-Lines are local only.
        !          1056:     If you use "*!<user>@<host>" or "*!*@<host>" masks, these connections
        !          1057:     are blocked even before the user is fully logged in (before PASS,
        !          1058:     NICK, and USER commands have been processed) and before the child
        !          1059:     processes for authentication are forked, so resource usage is smaller.
        !          1060:   - Xcode: update project file for Xcode 4.2 and define HAVE_GAI_STRERROR
        !          1061:     for Mac OS X Xcode builds.
        !          1062:   - ./configure: Fix logic and quoting of poll() detection code: only use
        !          1063:     poll() when poll.h exists as well.
        !          1064:   - Suppress 'Can't create pre-defined channel: invalid name: ""' message.
        !          1065:   - whois-test: handle local host name = "localhost.localdomain" using the
        !          1066:     pattern "localhost*" for valid local host names.
        !          1067:   - sample-ngircd.conf: show correct default for "PAM" variable: The
        !          1068:     default of "PAM" is "yes" when ngIRCd has been configured to use it,
        !          1069:     so show the correct default value in the sample configuration file.
        !          1070:     (Closes #119)
        !          1071:   - Update GPL 2 license text to current version.
        !          1072:   - Only close "unrelated" sockets in forked child processes: This fixes
        !          1073:     the problem that ngIRCd can't do any IDENT lookups because of the
        !          1074:     socket has already been closed in the child process.
        !          1075:     The bug has been introduced starting with ngIRCd 17 ... :-(
        !          1076:     (commit ID 6ebb31ab35e)
        !          1077:   - Added doc/Modes.txt: document modes supported by ngIRCd.
        !          1078:   - Implement user mode "R": indicates that the nickname of this user
        !          1079:     is "registered". This mode isn't handled by ngIRCd itself, but must
        !          1080:     be set and unset by IRC services like Anope.
        !          1081:   - Implement channel mode "R": only registered users (having the user
        !          1082:     mode "R" set) are allowed to join this channel.
        !          1083:   - Test suite: bind to loopback (127.0.0.1) interface only.
        !          1084:   - New 2nd message "Nickname too long" for error code 432.
        !          1085:   - Xcode: Mac OS X config.h: support 10.5 as well as 10.6/10.7 SDK.
        !          1086:   - Xcode: exclude more Xcode 4 specific directories in ".gitignore".
        !          1087:   - Disconnect directly linked servers sending QUIT. Without this,
        !          1088:     the server becomes removed from the network and the client list,
        !          1089:     but the connection isn't shut down at all ...
        !          1090:   - contrib/ngindent: detect "gindent" as GNU indent.
        !          1091:   - Handle unknown user and channel modes: these modes are saved and
        !          1092:     forwarded to other servers, but ignored otherwise.
        !          1093:   - Handle channel user modes 'a', 'h', and 'q' from remote servers.
        !          1094:     These channel user modes aren't used for anything at the moment,
        !          1095:     but ngIRCd knows that these three modes are "channel user modes"
        !          1096:     and not "channel modes", that is that these modes take an "nickname"
        !          1097:     argument. Like unknown user and channel modes, these modes are saved
        !          1098:     and forwarded to other servers, but ignored otherwise.
        !          1099:   - Correctly inform clients when other servers change their user modes.
        !          1100:     This is required for some services to work correctly.
        !          1101:   - Test suite: make getpid.sh work even when run as root.
        !          1102:   - Spoofed prefixes: close connection on non-server links only.
        !          1103:     On server-links, spoofed prefixes can happen because of the
        !          1104:     asynchronous nature of the IRC protocol. So don't break server-
        !          1105:     links, only log a message and ignore the command. (Closes #113)
        !          1106:
        !          1107: ngIRCd 18 (2011-07-10)
        !          1108:
        !          1109:   - Update timestamp of ngircd(8) manual page.
        !          1110:   - Add preliminary ngIRCd protocol module for Anope 1.9 to contrib/Anope/.
        !          1111:   - Don't register WHOWAS information when "MorePrivacy" option is in effect.
        !          1112:
        !          1113:   ngIRCd 18~rc2 (2011-06-29)
        !          1114:   - Update documentation, fix some wording, and use a spellchecker :-)
        !          1115:   - ngircd.conf.5: strip "SSL" prefix from variables in [SSL] section.
        !          1116:   - ngircd.8: document debugging options.
        !          1117:   - GnuTLS: use 1024 bits as minimum size of the DH prime. This enables
        !          1118:     ngIRCd to accept incoming connections from other servers and clients
        !          1119:     that "only" use at least 1024 bits again, like ngIRCd 17 did (and no
        !          1120:     longer requires 2048 bits for incoming connections).
        !          1121:
        !          1122:   ngIRCd 18~rc1 (2011-06-27)
        !          1123:   - PAM warning message: make clear which "Password" config option is ignored.
        !          1124:   - New configuration option "MorePrivacy" to "censor" some user information.
        !          1125:     When enabled, signon time and idle time is left out. Part and quit
        !          1126:     messages are made to look the same. WHOWAS requests are silently dropped.
        !          1127:     All of this is useful if one wish to conceal users that access the ngircd
        !          1128:     servers from TOR or I2P.
        !          1129:   - New configuration option "ScrubCTCP" to scrub incoming CTCP commands. If
        !          1130:     activated, the server silently drops incoming CTCP requests from both
        !          1131:     other servers and from users. The server that scrubs CTCP will not forward
        !          1132:     the CTCP requests to other servers in the network either, which can spell
        !          1133:     trouble if not every oper knows about the CTCP-scrubbing. Scrubbing CTCP
        !          1134:     commands also means that it is not possible to send files between users.
        !          1135:     There is one exception to the CTCP scrubbing performed: ACTION ("/me
        !          1136:     commands") requests are not scrubbed.
        !          1137:   - Display configuration errors more prominent on "--configtest".
        !          1138:   - Restructure ngIRCd configuration file: introduce new [Limits], [Options],
        !          1139:     and [SSL] sections. The intention of this restructuring is to make the
        !          1140:     [Global] section much cleaner, so that it only contains variables that
        !          1141:     most installations must adjust to the local requirements. All the optional
        !          1142:     variables are moved to [Limits], for configurable limits and timers of
        !          1143:     ngIRCd, and [Options], for optional features. All SSL-related variables
        !          1144:     are moved to [SSL] and the "SSL"-prefix is stripped. The old variables in
        !          1145:     the [Global] section are deprecated now, but are still recognized.
        !          1146:     => Don't forget to check your configuration, use "ngircd --configtest"!
        !          1147:   - New documentation "how to contribute": doc/Contributing.txt.
        !          1148:   - Slightly fix error handling when connecting to remote servers.
        !          1149:   - GnuTLS: bump DH-bitsize to 2048: this solves the problem that some clients
        !          1150:     refuse to connect to severs that only offer 1024. For interoperability it
        !          1151:     would be best to just use 4096 bits, but that takes minutes, even on
        !          1152:     current hardware ...
        !          1153:   - contrib/platformtest.sh: fix gcc version detection.
        !          1154:   - Avoid needlessly scary 'buffer overflow' messages: When the write buffer
        !          1155:     space grows too large, ngIRCd has to disconnect the client to avoid
        !          1156:     wasting too much memory, which is logged with a scary 'write buffer
        !          1157:     overflow' message. Change this to a more descriptive wording.
        !          1158:   - Require server prefixes for most commands on RFC2812 links. RFC1459 links
        !          1159:     (often used by services, for example) are not affected.
        !          1160:   - Mac OS X: update installer functionality, texts, and add our logo :-)
        !          1161:   - New configuration option "RequireAuthPing": PING-PONG on login. When
        !          1162:     enabled, this configuration option lets ngIRCd send a PING with an numeric
        !          1163:     "token" to clients logging in; and it will not become registered in the
        !          1164:     network until the client responds with the correct PONG.
        !          1165:   - New configuration option "NoticeAuth": send NOTICE AUTH on connect. When
        !          1166:     active, ngircd will send "NOTICE AUTH" messages on client connect time
        !          1167:     like e.g. snircd (QuakeNet) does.
        !          1168:   - Generate WALLOPS message on SQUIT from IRC operators; so SQUIT now behaves
        !          1169:     like CONNECT and DISCONNECT commands, when called by an IRC operator.
        !          1170:   - Allow servers to send more commands in the first 10 seconds ("burst"). This
        !          1171:     helps to speed up server login and network synchronization.
        !          1172:   - Add support for up to 3 targets in WHOIS queries, also allow up to one
        !          1173:     wildcard query from local hosts. Follows ircd 2.10 implementation rather
        !          1174:     than RFC 2812. At most 10 entries are returned per wildcard expansion.
        !          1175:   - ngircd.conf(5) manual page: describe types of configuration variables
        !          1176:     (booleans, text strings, integer numbers) and add type information to each
        !          1177:     variable description.
        !          1178:   - Don't use "the.net" in sample-ngircd.conf, use "example.net".
        !          1179:   - Terminate incoming connections on HTTP commands "GET" and "POST".
        !          1180:   - New configuration option "CloakHost": when set, this host name is used for
        !          1181:     every client instead of the real DNS host name (or IP address).
        !          1182:   - New configuration option "CloakUserToNick": when enabled, ngIRCd sets
        !          1183:     every clients' user name to their nickname and hides the user name
        !          1184:     supplied by the IRC client.
        !          1185:   - doc/Protocol.txt: Update description of the CHANINFO and WEBIRC commands.
        !          1186:   - Doxygen'ify (document) much more source files; code cleanup ...
        !          1187:   - Make write buffers bigger, but flush early. Before this change, a client
        !          1188:     got disconnected if the buffer flushing at 4k failed, now regular clients
        !          1189:     can store up to 32k and servers up 64k even if flushing is not possible at
        !          1190:     the moment. This enhances reliability on slow links.
        !          1191:   - Don't access possibly free'd CLIENT structure. Ooops.
        !          1192:   - Allow "Port = 0" in [Server] blocks. Port number 0 marks remote servers
        !          1193:     that try to connect to this daemon, but where this daemon never tries to
        !          1194:     establish a connection on its own: only incoming connections are allowed.
        !          1195:   - Configuration: fix 'Value of "..." is not a number!' for negative values.
        !          1196:   - Enable WHOIS command to return information about services.
        !          1197:   - Implement channel mode 'O': "IRC operators only". This channel mode is
        !          1198:     used on DALnet (bahamut), for example.
        !          1199:   - Remove support for ZeroConf/Bonjour/Rendezvous service registration
        !          1200:     including the "[No]ZeroConf" configuration option.
        !          1201:   - TOPIC command: test for channel admin rights correctly: this enables other
        !          1202:     servers, services and IRC operators to change channel topics, even when
        !          1203:     the client is not joined to this channel.
        !          1204:   - Deprecate NoXX-Options in ngircd.conf and move new variants into our new
        !          1205:     [Options] section: 'NoDNS=no' => 'DNS=yes', 'NoIdent=no' => 'Ident=yes',
        !          1206:     'NoPAM=no' => 'PAM=yes', and 'NoZeroConf=no' => 'ZeroConf=yes' (and
        !          1207:     vice-versa). The defaults are adjusted accordingly and the old variables
        !          1208:     in [Global] are still accepted, so there is no functional change.
        !          1209:   - Fix confusing "adding to invite list" debug messages: adding entries to
        !          1210:     ban list produced 'invite list' debug output ...
        !          1211:   - Don't throttle services and servers being registered.
        !          1212:   - Xcode: correctly sort files :-)
        !          1213:   - Don't assert() when searching a client for an invalid server token (this is
        !          1214:     only relevant when a trusted server on a server-server link sends invalid
        !          1215:     commands).
        !          1216:
        !          1217: ngIRCd 17.1 (2010-12-19)
        !          1218:
        !          1219:   - --configtest: remember if MOTD is configured by file or phrase
        !          1220:   - Enhance log messages when establishing server links a little bit
        !          1221:   - Reset ID of outgoing server link on DNS error correctly
        !          1222:   - Don't log critical (or worse) messages to stderr
        !          1223:   - Manual page ngircd(8): add SIGNALS section
        !          1224:   - Manual pages: update and simplify AUTHORS section
        !          1225:   - Remove "error file" when compiled with debug code enabled
        !          1226:   - README: Updated list of implemented commands
        !          1227:   - add doc/README-Interix.txt and doc/Bopm.txt to distribution tarball
        !          1228:   - Merge branch 'numeric-329'
        !          1229:   - add doc/PAM.txt to distribution tarball
        !          1230:   - New numeric 329: get channel creation time on "MODE #chan" commands
        !          1231:   - Save channel creation time; new function Channel_CreationTime()
        !          1232:
        !          1233: ngIRCd 17 (2010-11-07)
        !          1234:
        !          1235:   - doc: change path names in sample-ngircd.conf depending on sysconfdir
        !          1236:   - Fix up generation and distribution of sample-ngircd.conf
        !          1237:   - contrib/ngircd-redhat.init: updated email address of Naoya Nakazawa
        !          1238:   - contrib/platformtest.sh: make command name quoting consistent
        !          1239:
        !          1240:   ngIRCd 17~rc3 (2010-10-27)
        !          1241:   - Xcode builds: detect version number correctly, updated project file
        !          1242:     to use the Mac OS X 10.5.x SDK, disable pam_fail_delay() because it
        !          1243:     is only available starting with Mac OS X 10.6, and generate a default
        !          1244:     PAM configuration for the Mac OS X Installer.app package of ngIRCd.
        !          1245:   - Debian: updated standards version to 3.9.1, added libpam0g-dev to the
        !          1246:     dependencies, and install a default /etc/pam.d/ngircd allowing all logins.
        !          1247:   - Make contrib/platformtest.sh more portable.
        !          1248:   - Fix connect attempts to further IP addresses of outgoing server links.
        !          1249:
        !          1250:   ngIRCd 17~rc2 (2010-10-25)
        !          1251:   - ZeroConf: include header files missing since commit a988bbc86a.
        !          1252:   - Generate ngIRCd version number from GIT tag.
        !          1253:   - Make source code compatible with ansi2knr again. This allows to compile
        !          1254:     ngIRCd using a pre-ANSI K&R C compiler again.
        !          1255:   - ./configure: check if C compiler can compile ISO Standard C.
        !          1256:   - ./configure: check support for C prototypes again.
        !          1257:   - Don't use PARAMS() macro for function implementations.
        !          1258:   - Added m68k/apple/aux3.0.1 (gcc 2.7.2) to doc/Platforms.txt.
        !          1259:   - Only try to set FD_CLOEXEC if this flag is defined.
        !          1260:   - Only use "__attribute__ ((unused))" if GCC >=2.8 is used.
        !          1261:   - doc/Makefile.am: don't set docdir, automake handles it already.
        !          1262:
        !          1263:   ngIRCd 17~rc1 (2010-10-11)
        !          1264:   - New configuration option "NoZeroConf" to disable service registration at
        !          1265:     runtime even if ngIRCd is compiled with support for ZeroConf (e.g. using
        !          1266:     Howl, Avahi or on Mac OS X).
        !          1267:   - New configuration option "SyslogFacility" to define the syslog "facility"
        !          1268:     (the "target"), to which ngIRCd should send its log messages.
        !          1269:     Possible values are system dependent, but most probably "auth", "daemon",
        !          1270:     "user" and "local1" through "local7" are possible values; see syslog(3).
        !          1271:     Default is "local5" for historical reasons.
        !          1272:   - Dump the "internal server state" (configured servers, established
        !          1273:     connections and known clients) to the console or syslog when receiving
        !          1274:     the SIGUSR2 signal and debug mode is enabled.
        !          1275:   - Enable the daemon to disable and enable "debug mode" on runtime using
        !          1276:     signal SIGUSR1, when debug code is compiled in, not only on startup
        !          1277:     using the command line parameters.
        !          1278:   - Signal handler: added new 'delayed' signal handlers, including fallback
        !          1279:     to deprecated sysv API. And removed global NGIRCd_SignalRehash variable.
        !          1280:   - IO: add io_cloexec() to set close-on-exec flag.
        !          1281:   - ng_ipaddr.h: include required assert.h header.
        !          1282:   - Conn_SyncServerStruct(): test all connections; and work case insensitive
        !          1283:   - configure script: correctly indent IPv6 yes/no summary output.
        !          1284:   - Don't reset My_Connections[Idx].lastping when reading data, so the
        !          1285:     client lag debug-output is working again.
        !          1286:   - Implement user mode "x": host name cloaking (closes: #102).
        !          1287:   - Make configure switch "--docdir" work (closes: #108).
        !          1288:   - Reformat and update FAQ.txt a little bit.
        !          1289:   - INSTALL: mention SSL, IPv6, and changed handling of MotdFile.
        !          1290:   - Change MOTD file handling: ngIRCd now caches the contents of the MOTD
        !          1291:     file, so the daemon now requires a HUP signal or REHASH command to
        !          1292:     re-read the MOTD file when its content changed.
        !          1293:   - Startup: open /dev/null before chroot'ing the daemon.
        !          1294:   - Allow IRC ops to change channel modes even without OperServerMode set.
        !          1295:   - Allow IRC operators to use MODE command on any channel (closes: #100).
        !          1296:   - Added mailmap file for git-[short]log and git-blame.
        !          1297:   - Authenticated users should be registered without the "~" mark.
        !          1298:   - Set NoPAM=yes in configuration files used for the testsuite.
        !          1299:   - New configuration option "NoPAM" to disable PAM.
        !          1300:   - Implement asynchronous user authentication using PAM, please see the
        !          1301:     file doc/PAM.txt for details.
        !          1302:   - Resolver: Implement signal handler and catch TERM signals.
        !          1303:   - Don't set a penalty time when doing DNS lookups.
        !          1304:   - Add some documentation for using BOPM with ngIRCd, see doc/Bopm.txt.
        !          1305:   - Implement user mode "c": receive connect/disconnect NOTICEs. Note that
        !          1306:     this new mode requires the user to be an IRC operator.
        !          1307:   - ngircd.init: require "$network" and "$remote_fs" when stopping ngircd.
        !          1308:   - Show SSL status in WHOIS output, numeric 275.
        !          1309:   - Include correct header files when testing for arpa/inet.h (Closes: #105).
        !          1310:   - Don't access already freed memory in IRC_KILL().
        !          1311:   - Fix "beeing" typo ...
        !          1312:   - SSL/TLS: fix bogus "socket closed" error message.
        !          1313:
        !          1314: ngIRCd 16 (2010-05-02)
        !          1315:
        !          1316:   - doc/SSL: remove line continuation marker
        !          1317:
        !          1318:   ngIRCd 16~rc2 (2010-04-25)
        !          1319:   - Updated some more copyright notices, it's 2010 already :-)
        !          1320:   - Only compile in Get_Error() if really needed
        !          1321:   - Fix gcc warning "ignoring return value of ..."
        !          1322:   - Include netinet/in_systm.h alongside netinet/ip.h
        !          1323:   - Include netinet/{in.h, in_systm.h} when checking for netinet/ip.h
        !          1324:   - Only include <netinet/in_systm.h> if it exists
        !          1325:   - Updated doc/Platforms.txt
        !          1326:   - Enhance connection statistics counters: display total number of served
        !          1327:     connections on daemon shutdown and when a new client connects using
        !          1328:     the new numeric RPL_STATSCONN (250).
        !          1329:
        !          1330:   ngIRCd 16~rc1 (2010-03-25)
        !          1331:   - Various fixes to the build system and code cleanups.
        !          1332:   - contrib/platformtest.sh: Only show latest commit.
        !          1333:   - Updated doc/Platforms.txt, added new README-Interix.txt documenting
        !          1334:     how to tun ngIRCd on Microsoft Services for UNIX (MS SFU, MS SUA).
        !          1335:   - Updated links to the ngIRCd homepage (bug tracker, mailing list).
        !          1336:   - Added missing modes to USERMODES #define
        !          1337:   - Show our name (IRCD=ngIRCd) in ISUPPORT (005) numeric
        !          1338:   - Quote received messages of ERROR commands in log output.
        !          1339:   - ngircd.conf manual page: document missing "Password" variable.
        !          1340:   - Implement WEBIRC command used by some Web-IRC frontends. The password
        !          1341:     required to secure this command must be configured using the new
        !          1342:     "WebircPassword" variable in the ngircd.conf file.
        !          1343:   - Don't use port 6668 as example for both "Ports" and "SSLPorts".
        !          1344:   - Remove limit on max number of configured irc operators.
        !          1345:   - Only link "nsl" library when really needed.
        !          1346:   - A new channel mode "secure connections only" (+z) has been implemented:
        !          1347:     Only clients using a SSL encrypted connection to the server are allowed
        !          1348:     to join such a channel.
        !          1349:     But please note three things: a) already joined clients are not checked
        !          1350:     when setting this mode, b) IRC operators are always allowed to join
        !          1351:     every channel, and c) remote clients using a server not supporting this
        !          1352:     mode are not checked either and therefore always allowed to join.
        !          1353:
        !          1354: ngIRCd 15 (2009-11-07)
        !          1355:
        !          1356:   - "ngircd --configtest": print SSL configuration options even when unset.
        !          1357:
        !          1358:   ngIRCd 15~rc1 (2009-10-15)
        !          1359:   - Do not add default listening port (6667) if SSL ports were specified, so
        !          1360:     ngIRCd can be configured to only accept SSL-encrypted connections now.
        !          1361:   - Enable IRC operators to use the IRC command SQUIT (instead of the already
        !          1362:     implemented but non-standard DISCONNECT command).
        !          1363:   - New configuration option "AllowRemoteOper" (disabled by default) that
        !          1364:     enables remote IRC operators to use the IRC commands SQUIT and CONNECT
        !          1365:     on the local server.
        !          1366:   - Mac OS X: fix test for packagemaker(1) tool in Makefile and use gcc 4.0
        !          1367:     for Mac OS X 10.4 compatibility in the Xcode project file.
        !          1368:   - Fix --with-{openssl|gnutls} to accept path names.
        !          1369:   - Fix LSB header of Debian init script.
        !          1370:   - Updated doc/Platforms.txt and include new script contrib/platformtest.sh
        !          1371:     to ease generating platform reports.
        !          1372:   - Fix connection information for already registered connections.
        !          1373:   - Enforce upper limit on maximum number of handled commands. This implements
        !          1374:     a throttling scheme: an IRC client can send up to 3 commands or 256 bytes
        !          1375:     per second before a one second pause is enforced.
        !          1376:   - Fix connection counter.
        !          1377:   - Fix a few error handling glitches for SSL/TLS connections.
        !          1378:   - Minor fixes to manual pages and documentation.
        !          1379:
        !          1380: ngIRCd 14.1 (2009-05-05)
        !          1381:
        !          1382:   - Security: fix remotely triggerable crash in SSL/TLS code.
        !          1383:   - BSD start script contrib/ngircd.sh has been renamed to ngircd-bsd.sh.
        !          1384:   - New start/stop script for RedHat-based distributions:
        !          1385:     contrib/ngircd-redhat.init, thanks to Naoya Nakazawa <naoya@sanow.net>.
        !          1386:   - Doxygen: update source code repository link to GIT.
        !          1387:   - Debian: build ngircd-full-dbg package.
        !          1388:   - Allow ping timeout quit messages to show the timeout value.
        !          1389:   - Fix error handling on compressed links.
        !          1390:   - Fix server list announcement.
        !          1391:   - Do not remove host names from info text.
        !          1392:
        !          1393: ngIRCd 14 (2009-04-20)
        !          1394:
        !          1395:   - Display IPv6 addresses as "[<addr>]" when accepting connections.
        !          1396:
        !          1397:   ngIRCd 14~rc1 (2009-03-29)
        !          1398:   - Updated Debian/Linux init script (see contrib/Debian/ngircd.init).
        !          1399:   - Allow creation of persistent modeless channels.
        !          1400:   - The INFO command reports the compile time now (if available).
        !          1401:   - Spell check and enhance ngIRCd manual pages.
        !          1402:   - Channel mode changes: break on syntax errors in MODE command.
        !          1403:   - Support individual channel keys for pre-defined channels: introduce
        !          1404:     new configuration variable "KeyFile" in [Channel] sections in ngircd.conf,
        !          1405:     here a file can be configured for each pre-defined channel which contains
        !          1406:     individual channel keys for different users.
        !          1407:   - Remove limit on maximum number of predefined channels in ngircd.conf.
        !          1408:   - Updated ngircd.spec file for building RPM packages.
        !          1409:   - Add new and missing files to Mac OS X Xcode project, and update project.
        !          1410:   - Reject masks with wildcard after last dot.
        !          1411:   - TLS/SSL: remove useless error message when ssl connection is closed.
        !          1412:   - Fix memory leak when a encrypted and compressed server link goes down.
        !          1413:     (closes bug #95, reported by Christoph, fiesh@fiesh.homeip.net)
        !          1414:   - Fix handling of channels containing dots.
        !          1415:     (closes bug #93, reported by Gonosz Csiga)
        !          1416:
        !          1417: ngIRCd 13 (2008-12-25)
        !          1418:
        !          1419:   - Updated documentation, especially doc/Services.txt and doc/SSL.txt.
        !          1420:   - Make the test suite work on OpenSolaris.
        !          1421:
        !          1422:   ngIRCd 13~rc1 (2008-11-21):
        !          1423:   - New version number scheme :-)
        !          1424:   - Initial support for IRC services, using a RFC1459 style interface,
        !          1425:     tested with IRCServices (http://www.ircservices.za.net/) version 5.1.13.
        !          1426:     For this to work, ngIRCd now supports server-server links conforming
        !          1427:     to RFC 1459. New ngircd.conf(5) option: ServiceMask.
        !          1428:   - Support for SSL-encrypted server-server and client-server links using
        !          1429:     OpenSSL (configure: --with-openssl) or GNUTLS (configure: --with-gnutls).
        !          1430:     New ngircd.conf(5) options: SSLPorts, SSLKeyFile, SSLKeyFilePassword,
        !          1431:     SSLCertFile, SSLDHFile, and SSLConnect.
        !          1432:   - Server local channels have been implemented, prefix "&", that are only
        !          1433:     visible to users of the same server and are not visible in the network.
        !          1434:     In addition ngIRCd creates a "special" channel &SERVER on startup and logs
        !          1435:     all the messages to it that a user with mode +s receives.
        !          1436:   - New make target "osxpkg" to build a Mac OS X installer package.
        !          1437:   - Debug mode: enable support for GNU libc memory tracing (see mtrace(3)).
        !          1438:   - SysV init script: use LSB logging functions, if available.
        !          1439:   - Added some more FAQ entries (regarding logging and IRC operators).
        !          1440:   - Allow IRC operators to overwrite channel limits.
        !          1441:   - Support for enhanced PRIVMSG and NOTICE message targets.
        !          1442:   - More tests have been added to the test-suite ("make check"), and two
        !          1443:     servers are started for testing server-server linking.
        !          1444:   - Added a timestamp to log messages to the console.
        !          1445:   - New configuration option "NoIdent" to disable IDENT lookups even if the
        !          1446:     daemon is compiled with IDENT support.
        !          1447:
        !          1448: ngIRCd 0.12.1 (2008-07-09)
        !          1449:
        !          1450:   - Allow mixed line terminations (CR+LF/CR/LF) in non-RFC-compliant mode
        !          1451:   - Don't allow stray \r or \n in command parameters
        !          1452:   - --configtest: return non-zero exit code if there are errors
        !          1453:   - Update ngIRCd manual pages
        !          1454:   - Add option aliases -V (for --version) and -h (for --help).
        !          1455:   - Fix 'no-ipv6' compile error.
        !          1456:   - Make Listen parameter a comma-separated list of addresses. This also
        !          1457:     obsoletes ListenIPv4 and ListenIPv6 options. If Listen is unset, it
        !          1458:     is treated as Listen="::,0.0.0.0".
        !          1459:     Note: ListenIPv4 and ListenIPv6 options are still recognized,
        !          1460:     but ngircd will print a warning if they are used in the config file.
        !          1461:
        !          1462: ngIRCd 0.12.0 (2008-05-13)
        !          1463:
        !          1464:   - Fix Bug: 85: "WHO #SecretChannel" that user is not a member of now returns
        !          1465:     proper RPL_ENDOFWHO_MSG instead of nothing. (Ali Shemiran)
        !          1466:   - Fix compile on FreeBSD 5.4 and AIX.
        !          1467:   - If bind() fails, also print IP address and not just the port number.
        !          1468:
        !          1469:   ngIRCd 0.12.0-pre2 (2008-04-29)
        !          1470:   - IPv6: Add config options to disable ipv4/ipv6 support.
        !          1471:   - Don't include doc/CVS.txt in distribution archive, use doc/GIT.txt now!
        !          1472:   - Documentation: get rid of some more references to CVS, switch to GIT.
        !          1473:   - Get rid of cvs-version.* and CVSDATE definition.
        !          1474:   - Report ERR_NOTONCHANNEL when trying to part a channel one is not member of.
        !          1475:   - Testsuite: remove erroneous ConfUID setting in config file.
        !          1476:
        !          1477:   ngIRCd 0.12.0-pre1 (2008-04-20)
        !          1478:   - Include Mac OS X Xcode project in distribution archives.
        !          1479:   - Do not exit on SIGHUP or /REHASH if the config file cannot opened.
        !          1480:   - Add IPv6 support.
        !          1481:   - Install a LaunchDaemon script to start/stop ngIRCd on Mac OS X.
        !          1482:   - Implemented IRC commands INFO, SUMMON (dummy), and USERS (dummy) and
        !          1483:     enhanced test suite to check these commands. (Dana Dahlstrom)
        !          1484:   - RPL_WHOREPLY messages generated by IRC_WHO didn't include flags (*,@,+).
        !          1485:     (Dana Dahlstrom)
        !          1486:   - IRC_WHO now supports search patterns and will test this against user
        !          1487:     nickname/server name/host name, etc. as required by RFC 2812, Section 3.6.1.
        !          1488:     (reported by Dana Dahlstrom)
        !          1489:   - Add test cases for "WHO" command. (Dana Dahlstrom)
        !          1490:   - Implement RFC 2812 handling of "0" argument to 'JOIN': must be treated
        !          1491:     as if the user had sent PART commands for all channels the user is a
        !          1492:     member of. (Dana Dahlstrom)
        !          1493:   - Allow NOTICEs to be sent to a channel. (Fabian Schlager)
        !          1494:
        !          1495: ngIRCd 0.11.1 (2008-02-26)
        !          1496:
        !          1497:   - Fix sending of JOIN commands between servers when remote server appended
        !          1498:     mode flags. (Rolf Eike Beer) [from HEAD]
        !          1499:   - Send "G" instead of "H" flag in WHO replies. (reported by Dana Dahlstrom)
        !          1500:   - Under some circumstances ngIRCd issued channel MODE message with a
        !          1501:     trailing space. (Dana Dahlstrom) [from HEAD]
        !          1502:
        !          1503: ngIRCd 0.11.0 (2008-01-15)
        !          1504:
        !          1505:   ngIRCd 0.11.0-pre2 (2008-01-07)
        !          1506:   - SECURITY: IRC_PART could reference invalid memory, causing
        !          1507:     ngircd to crash [from HEAD]. (CVE-2008-0285)
        !          1508:
        !          1509:   ngIRCd 0.11.0-pre1 (2008-01-02)
        !          1510:   - Use dotted-decimal IP address if host name is >= 64.
        !          1511:   - Add support for /STAT u (server uptime) command.
        !          1512:   - New [Server] configuration Option "Bind" allows to specify
        !          1513:     the source IP address to use when connecting to remote server.
        !          1514:   - New configuration option "MaxNickLength" to specify the allowed maximum
        !          1515:     length of user nicknames. Note: must be unique in an IRC network!
        !          1516:   - Enhanced the IRC+ protocol to support an enhanced "server handshake" and
        !          1517:     enable server to recognize numeric 005 (ISUPPORT) and 376 (ENDOFMOTD).
        !          1518:     See doc/Protocol.txt for details.
        !          1519:   - Re-added doc/SSL.txt to distribution -- got lost somewhere!?
        !          1520:   - Fixes the wrong logging output when nested servers are introduced
        !          1521:     to the network as well as the wrong output of the LINKS command.
        !          1522:   - Update Mac OS X Xcode project file for Xcode 3.
        !          1523:   - Adjust test suite to be usable on HP/UX 11.11 :-)
        !          1524:   - Fix code to compile using K&R C compiler and ansi2kr again.
        !          1525:   - New config option NoDNS: Disables DNS lookups when clients connect.
        !          1526:   - Fixed propagation of channel mode 'P' on server links.
        !          1527:   - Numeric 317: implemented "signon time" (displayed in WHOIS result).
        !          1528:   - Fixed code that prevented GCC 2.95 to compile ngIRCd.
        !          1529:   - Adjust path names in manual pages according to "./configure" settings.
        !          1530:   - Added new server configuration option "Passive" for "Server" blocks to
        !          1531:     disable automatic outgoing connections (similar to -p option to ngircd,
        !          1532:     but only for the specified server). (Tassilo Schweyer)
        !          1533:   - Don't connect to a server if a connection to another server within the
        !          1534:     same group is already in progress.
        !          1535:   - Added support for the WALLOPS command. Usage is restricted to IRC
        !          1536:     operators.
        !          1537:
        !          1538: ngIRCd 0.10.4 (2008-01-07)
        !          1539:
        !          1540:   - SECURITY: IRC_PART could reference invalid memory, causing
        !          1541:     ngircd to crash [from HEAD]. (CVE-2008-0285)
        !          1542:
        !          1543: ngIRCd 0.10.3 (2007-08-01)
        !          1544:
        !          1545:   - SECURITY: Fixed a severe bug in handling JOIN commands, which could
        !          1546:     cause the server to crash. Thanks to Sebastian Vesper, <net@veoson.net>.
        !          1547:     (CVE-2007-6062)
        !          1548:
        !          1549: ngIRCd 0.10.2 (2007-06-08)
        !          1550:
        !          1551:   ngIRCd 0.10.2-pre2 (2007-05-19)
        !          1552:   - Server links are allowed to use larger write buffers now (up to 50 KB).
        !          1553:
        !          1554:   ngIRCd 0.10.2-pre1 (2007-05-05)
        !          1555:   - Fix compressed server links (broken since 0.10.0).
        !          1556:   - Predefined Channel configuration now allows specification of channel key
        !          1557:     (mode k) and maximum user count (mode l).
        !          1558:   - When using epoll() IO interface, compile in the select() interface as
        !          1559:     well and fall back to it when epoll() isn't available on runtime.
        !          1560:   - New configure option "--without-select" to disable select() IO API
        !          1561:     (even when using epoll(), see above).
        !          1562:   - Added support for IO APIs "poll()" and "/dev/poll".
        !          1563:   - Reorganized internal handling of invite and ban lists.
        !          1564:
        !          1565: ngIRCd 0.10.1 (2006-12-17)
        !          1566:
        !          1567:   - Fixed validation of server names containing digits.
        !          1568:   - Update the "info text" of the local server after re-reading configuration.
        !          1569:   - Changed Numerics 265 and 266 to follow ircd 2.11.x "standards".
        !          1570:   - Allow PASS syntax defined in RFC 1459 for server links, too.
        !          1571:   - Enhanced ISUPPORT message (005 numeric).
        !          1572:   - New configuration option "PredefChannelsOnly": if set, clients can only
        !          1573:     join predefined channels.
        !          1574:   - Code cleanups: use "LogDebug(...)" instead of "Log(LOG_DEBUG, ...)", use
        !          1575:     "strcspn()", unsigned vs. signed, use "const", fix whitespaces, ...
        !          1576:
        !          1577: ngIRCd 0.10.0 (2006-10-01)
        !          1578:
        !          1579:   - Fixed file handle leak when daemon is not able to send MOTD to a client.
        !          1580:
        !          1581:   ngIRCd 0.10.0-pre2 (2006-09-09)
        !          1582:   - Fixed build problems with GCC option -fstack-protector.
        !          1583:   - Minor documentation updates.
        !          1584:
        !          1585:   ngIRCd 0.10.0-pre1 (2006-08-02)
        !          1586:   - Validate "ServerName" (see RFC 2812, section 2.3.1).
        !          1587:   - Enhanced DIE to accept a single parameter ("comment text") which is sent
        !          1588:     to all locally connected clients before the server goes down.
        !          1589:   - The ngIRCd handles time shifts backwards more gracefully now (the
        !          1590:     timeout handling doesn't disconnect clients by mistake any more).
        !          1591:   - Internal: Restructured connection handling (the connection ID is equal
        !          1592:     to the file descriptor of the connection).
        !          1593:   - Internal: Simplified resolver code.
        !          1594:   - JOIN now supports more than one channel key at a time.
        !          1595:   - Implemented numeric "333": Time and user name who set a channel topic.
        !          1596:   - Enhanced the handler for PING and PONG commands: fix forwarding and enable
        !          1597:     back-passing of a client supplied additional argument of PING.
        !          1598:   - Changed handling of timeouts for unregistered connections: don't reset
        !          1599:     the counter if data is received and disconnect clients earlier.
        !          1600:   - Removed unnecessary #define of "LOCAL", now use plain C "static" instead.
        !          1601:   - Channel topics are no longer limited to 127 characters: now the only limit
        !          1602:     is the maximum length of an IRC command, i. e. 512 bytes (in practice, this
        !          1603:     limits the topic to about 490 characters due to protocol overhead).
        !          1604:   - Reverse DNS lookup code now checks the result by doing an additional
        !          1605:     lookup to prevent spoofing.
        !          1606:   - Added new IO layer which (optionally) supports epoll() and kqueue() in
        !          1607:     addition to the select() interface.
        !          1608:
        !          1609: ngIRCd 0.9.2 (2005-10-15)
        !          1610:
        !          1611:   - Fixed a bug that could cause the daemon to crash when outgoing server
        !          1612:     connections can't be established.
        !          1613:   - Fixed a bug that caused the daemon to leak file descriptors when no
        !          1614:     resolver subprocesses could be created.
        !          1615:   - Fixed server NOTICEs to users with "s" mode ("server messages").
        !          1616:   - Fixed a format string bug in "connection statistics" messages to clients.
        !          1617:
        !          1618: ngIRCd 0.9.1 (2005-08-03)
        !          1619:
        !          1620:   - The KILL command killed much more than desired (including server links!)
        !          1621:     when the target user is connected to a remote server. Bug introduced in
        !          1622:     ngIRCd 0.9.0 ...  Reported by <qssl@fastmail.fm>, Thanks!
        !          1623:   - Changed some constants to be "signed" (instead of unsigned) to solve
        !          1624:     problems with old (pre-ANSI) compilers.
        !          1625:
        !          1626: ngIRCd 0.9.0 (2005-07-24)
        !          1627:
        !          1628:   ngIRCd 0.9.0-pre1 (2005-07-09)
        !          1629:   - Fixed maximum length of user names, now allow up to 9 characters.
        !          1630:   - Cut off oversized IRC messages that should be sent to the network instead
        !          1631:     of shutting down the (wrong) connection.
        !          1632:   - Don't generate error messages for unknown commands received before the
        !          1633:     client is registered with the server (like the original ircd).
        !          1634:   - Never run with root privileges but always switch the user ID.
        !          1635:   - Make "netsplit" messages RFC compliant.
        !          1636:   - Fix handling of QUIT Messages: send only one message, even if the client
        !          1637:     is member of multiple channels.
        !          1638:   - Don't exit server if closing of a socket fails; instead ignore it and
        !          1639:     pray that this will be "the right thing" ...
        !          1640:   - Implemented the IRC function "WHOWAS".
        !          1641:   - Don't enable assert() calls when not ./configure'd with --enable-debug.
        !          1642:   - Fixed ./configure test for TCP Wrappers: now it runs on Mac OS X as well.
        !          1643:   - Enhanced configure script: now you can pass an (optional) search path
        !          1644:     to all --with-XXX parameters, e. g. "--with-ident=/opt/ident".
        !          1645:   - Removed typedefs for the native C data types.
        !          1646:     Use stdbool.h / inttypes.h if available.
        !          1647:   - New configuration option "OperServerMode" to enable a workaround needed
        !          1648:     when running an network with ircd2 servers and "OperCanUseMode" enabled
        !          1649:     to prevent the ircd2 daemon to drop mode changes of IRC operators.
        !          1650:     Patch by Florian Westphal, <westphal@foo.fh-furtwangen.de>.
        !          1651:   - Implemented support for "secret channels" (channel mode "s").
        !          1652:   - New configuration option "Mask" for [Operator] sections to limit OPER
        !          1653:     commands to users with a specific IRC mask. Patch from Florian Westphal.
        !          1654:   - Write "error file" (/tmp/ngircd-XXX.err) only if compiled with debug
        !          1655:     code ("--enable-debug") and running as daemon process.
        !          1656:   - Don't create version information string each time a client connects
        !          1657:     but instead on server startup. By Florian Westphal.
        !          1658:   - New configuration variable "PidFile", section "[Global]": if defined,
        !          1659:     the server writes its process ID (PID) to this file. Default: off.
        !          1660:     Idea of Florian Westphal, <westphal@foo.fh-furtwangen.de>.
        !          1661:   - Code cleanups from Florian Westphal, <westphal@foo.fh-furtwangen.de>.
        !          1662:   - Raised the maximum length of passwords to 20 characters.
        !          1663:   - Fixed a memory leak when resizing the connection pool and realloc()
        !          1664:     failed. Now we don't fall back to malloc(), which should be sane anyway.
        !          1665:     Patch from Florian Westphal, <westphal@foo.fh-furtwangen.de>.
        !          1666:   - Added support for the Howl (http://www.porchdogsoft.com/products/howl/)
        !          1667:     Rendezvous API, in addition to the API of Apple (Mac OS X). The available
        !          1668:     API will be autodetected when you call "./configure --with-rendezvous".
        !          1669:   - Made ngIRCd compile on HP/UX 10.20 with native HP pre-ANSI C compiler and
        !          1670:     most probably other older C compilers on other systems.
        !          1671:   - When the daemon should switch to another user ID (ServerID is defined in
        !          1672:     the configuration file) and is not running in a chroot environment, it
        !          1673:     changes its working directory to the home directory of this user. This
        !          1674:     should enable the system to write proper core files when not running with
        !          1675:     root privileges ...
        !          1676:
        !          1677: ngIRCd 0.8.3 (2005-02-03)
        !          1678:
        !          1679:   - Fixed a bug that could case a root exploit when the daemon is compiled
        !          1680:     to do IDENT lookups and is logging to syslog. Bug discovered by CoKi,
        !          1681:     <coki@nosystem.com.ar>, thanks a lot!
        !          1682:     (CVE-2005-0226; http://www.nosystem.com.ar/advisories/advisory-11.txt)
        !          1683:
        !          1684: ngIRCd 0.8.2 (2005-01-26)
        !          1685:
        !          1686:   - Added doc/SSL.txt to distribution.
        !          1687:   - Fixed a buffer overflow that could cause the daemon to crash. Bug found
        !          1688:     by Florian Westphal, <westphal@foo.fh-furtwangen.de>. (CVE-2005-0199)
        !          1689:   - Fixed a possible buffer underrun when reading the MOTD file. Thanks
        !          1690:     to Florian Westphal, <westphal@foo.fh-furtwangen.de>.
        !          1691:   - Fixed detection of IRC lines which are too long to send. Detected by
        !          1692:     Florian Westphal, <westphal@foo.fh-furtwangen.de>.
        !          1693:   - Fixed return values of our own implementation of strlcpy(). The code has
        !          1694:     been taken from rsync and they fixed it, but we didn't until today :-/
        !          1695:     It has only been used when the system didn't implement strlcpy by itself,
        !          1696:     not on "modern" systems. Florian Westphal, <westphal@foo.fh-furtwangen.de>.
        !          1697:
        !          1698: ngIRCd 0.8.1 (2004-12-25)
        !          1699:
        !          1700:   - Autoconf: Updated config.guess and config.sub
        !          1701:   - Added some more debug code ...
        !          1702:   - Fixed wrong variable names in output of "ngircd --configtest".
        !          1703:   - Debian: Fixed the name of the "default file" in the init script for
        !          1704:     ngircd-full packages. And do the test if the binary is executable after
        !          1705:     reading this file.
        !          1706:   - Enhanced the "test suite": please have a look at src/testsuite/README!
        !          1707:
        !          1708: ngIRCd 0.8.0 (2004-06-26)
        !          1709:
        !          1710:   - Fixed wrong buffer size calculation for results of the resolver.
        !          1711:
        !          1712:   ngircd 0.8.0-pre2 (2004-05-16)
        !          1713:   - Enhanced logging to console when running in "no-detached mode": added
        !          1714:     PID and log messages of resolver sub-processes.
        !          1715:   - Fixed host name lookups when using IDENT user lookups.
        !          1716:   - "make clean" and "make maintainer-clean" remove more files now.
        !          1717:
        !          1718:   ngIRCd 0.8.0-pre1 (2004-05-07)
        !          1719:   - Two new configuration options: "ChrootDir" and "MotdPhrase", thanks to
        !          1720:     Benjamin Pineau <ben@zouh.org>. Now you can force the daemon to change
        !          1721:     its root and working directory to something "safe". MotdPhrase is used
        !          1722:     to define an "MOTD string" instead of a whole file, useful if the
        !          1723:     "real" MOTD file would be outside the "jail".
        !          1724:   - INVITE- and BAN-lists become synchronized between IRC+ servers when
        !          1725:     establishing new connections, if the peer supports this as well.
        !          1726:   - Reorganized autogen.sh and configure scripts.
        !          1727:   - Fixed a wrong assert() which could cause the daemon to exit spuriously
        !          1728:     when closing down connections.
        !          1729:   - Better logging of decompression errors returned by zlib.
        !          1730:   - Servers other than the destination server didn't clean up the invite
        !          1731:     list of an "invite-only" channel properly when an INVITE'd user joined.
        !          1732:   - Changed the reply of the MODE command to match the syntax of the
        !          1733:     original ircd exactly: the unnecessary but missing ":" before the last
        !          1734:     parameter has been added.
        !          1735:   - Fixed TRACE: don't output "Serv" lines for ourself; display more info.
        !          1736:   - Results of the resolver (host names and IDENT names) are discarded after
        !          1737:     the client is successfully registered with the server.
        !          1738:   - Better logging while establishing and shutting down connections.
        !          1739:   - The type of service (TOS) of all sockets is set to "interactive" now.
        !          1740:   - Added short command line option "-t" as alternative to "--configtest".
        !          1741:   - Added optional support for "IDENT" lookups on incoming connections. You
        !          1742:     have to enable this function with the ./configure switch "--with-ident".
        !          1743:     The default is not to do IDENT lookups.
        !          1744:
        !          1745: ngIRCd 0.7.7 (2004-02-05)
        !          1746:
        !          1747:   - The info text ("real name") of users is set to "-" if none has been
        !          1748:     specified using the USER command (e. g. "USER user * * :"). Reason:
        !          1749:     the original ircd doesn't like empty ones and would KILL such users.
        !          1750:   - Fixed (optional) TCP Wrapper test which was broken and could result in
        !          1751:     false results. Thanks to Fuminori Tanizaki <tany@mcnet.ad.jp>!
        !          1752:   - Removed "USE_" prefixes of configuration #defines.
        !          1753:
        !          1754: ngIRCd 0.7.6 (2003-12-05)
        !          1755:
        !          1756:   - Fixed abort() ("server crash") when INVITE'ing users to nonexistent
        !          1757:     channels. Bug found by <hiddenx@wp.pl>.
        !          1758:   - Extended version numbering of CVS versions (added date).
        !          1759:   - Enhanced/fixed doc/Protocol.txt;
        !          1760:
        !          1761: ngIRCd 0.7.5 (2003-11-07)
        !          1762:
        !          1763:   - Fixed ban behavior: users which are banned from a channel can't no
        !          1764:     longer send PRIVMSG's to this channel (fixes Bug #47).
        !          1765:   - Fixed and enhanced the "penalty handling" of the server: commands that
        !          1766:     require more resources block the client for a short time.
        !          1767:   - Changed the internal time resolution to one second.
        !          1768:   - New configuration variable "MaxConnectionsIP" to limit the number of
        !          1769:     simultaneous connections from a single IP that the server will accept.
        !          1770:     This configuration options lowers the risk of denial of service attacks
        !          1771:     (DoS), the default is 5 connections per client IP.
        !          1772:   - Fixed build problems under Mac OS X 10.3.
        !          1773:   - Use "-pipe" when compiling with gcc, speeds things up a little :-)
        !          1774:   - Added new configuration variable "Listen" to bind all listening
        !          1775:     sockets of the server to a single IP address.
        !          1776:   - Suppress misleading error message of diff during make run.
        !          1777:   - Enhanced test-suite and made it work on GNU/Hurd.
        !          1778:   - Fixed minor typo in debug output :-)
        !          1779:
        !          1780: ngIRCd 0.7.1 (2003-07-18)
        !          1781:
        !          1782:   - Included files to build Debian packages (located in "debian/").
        !          1783:   - Updated config.guess and config.sub to newer upstream versions.
        !          1784:   - NJOIN propagates user channel modes correctly again ... Upsa.
        !          1785:   - Made Makefile more compatible with "make -j<n>".
        !          1786:   - Added support for GNU/Hurd.
        !          1787:   - Fixed a compiler warning related to an unnecessary assert().
        !          1788:   - Enhanced VERSION command when using debug versions.
        !          1789:
        !          1790: ngIRCd 0.7.0 (2003-05-01)
        !          1791:
        !          1792:   - "ServerName" is checked better now: a dot (".") is required.
        !          1793:   - The KILL command verifies and logs more parameters.
        !          1794:
        !          1795:   ngIRCd 0.7.0-pre2 (2003-04-27)
        !          1796:   - CVS build system fixes (made autogen.sh more portable).
        !          1797:   - Fixed compilation and test-suite on Solaris (tested with 2.6).
        !          1798:   - New documentation file "doc/Platforms.txt" describing the status of
        !          1799:     ngIRCd on the various tested platforms.
        !          1800:   - Test for broken GCC on Mac OS X and disable "-pedantic" in this case.
        !          1801:   - Disable "-ansi" on Cygwin: system headers are incompatible.
        !          1802:   - The server tried to connect to other servers only once when DNS or
        !          1803:     socket failures occurred.
        !          1804:   - Fixed --configtest: There is no variable "ServerPwd", it's "Password".
        !          1805:
        !          1806:   ngIRCd 0.7.0-pre1 (2003-04-22)
        !          1807:   - New signal handler (more secure, actions are executed outside).
        !          1808:   - GCC: the compiler is now called with more warning options enabled.
        !          1809:   - Replaced a lot of str[n]cpy(), str[n]cat() and sprintf() calls with the
        !          1810:     more secure functions strlcpy(), strlcat() and snprintf(). On systems
        !          1811:     that don't support strlcpy() and strlcat(), these functions are included
        !          1812:     in the libngportab now (with prototypes in portab.h).
        !          1813:   - If the server can't close a socket, it panics now. This is an error that
        !          1814:     can't occur during normal operation so there is something broken.
        !          1815:   - The order of log messages during disconnects is more "natural" now ;-)
        !          1816:   - Cleaned up handling of server configuration structures: modifying and
        !          1817:     removing servers during runtime works more reliable now.
        !          1818:   - Compression code from "conn.[ch]" is now found in new "conn-zip.[ch]"
        !          1819:   - Moved some connection functions from "conn.[ch]" to "conn-func.[ch]".
        !          1820:   - New command CONNECT to enable and add server links. The syntax is not
        !          1821:     RFC-compatible: use "CONNECT <name> <port>" to enable and connect an
        !          1822:     configured server and "CONNECT <name> <port> <host> <mypwd> <peerpwd>"
        !          1823:     to add a new server (ngIRCd tries to connect new servers only once!).
        !          1824:   - Added DISCONNECT command ("DISCONNECT <name>") to disable servers.
        !          1825:   - Restructured the documentation: Now the main language is English. The
        !          1826:     German documentation has been removed (until there is a maintainer).
        !          1827:   - Enhanced killing of users caused by a nickname collision.
        !          1828:   - Better error detection for status code ("numerics") forwarding.
        !          1829:   - Moved tool functions to own library: "libngtool".
        !          1830:   - New command TRACE (you can trace only servers at the moment).
        !          1831:   - New command HELP that lists all understood commands.
        !          1832:   - There should no longer remain "unknown connections" (see e.g. LUSERS)
        !          1833:     if an outgoing server link can't be established.
        !          1834:   - Added AC_PREREQ(2.50) to configure.in for better autoconf compatibility.
        !          1835:   - Conn_Close() now handles recursive calls for the same link correctly.
        !          1836:   - ngIRCd can register itself with Rendezvous: to enable support pass the
        !          1837:     new switch "--with-rendezvous" to configure.
        !          1838:   - Added support for TCP Wrappers library: pass "--with-tcp-wrappers" to
        !          1839:     configure to enable it.
        !          1840:   - Changed some configure options to use "--with"/"--without" as prefix
        !          1841:     instead of "--enable"/"--disable": "--without-syslog", "--without-zlib",
        !          1842:     "--with-tcp-wrappers", and "--with-rendezvous".
        !          1843:   - Better error reporting to clients on connect.
        !          1844:   - Enhanced manual pages ngircd(8) and ngircd.conf(5).
        !          1845:   - Documentation is now installed in $(datadir)/doc/ngircd.
        !          1846:   - Enhanced handling of NJOIN in case of nick collisions.
        !          1847:
        !          1848: ngIRCd 0.6.1 (2003-01-21)
        !          1849:
        !          1850:   - Fixed KILL: you can't crash the server by killing yourself any more,
        !          1851:     ngIRCd no longer sends a QUIT to other servers after the KILL, and you
        !          1852:     can kill only valid users now.
        !          1853:   - The server no longer forwards commands to ordinary users, instead it
        !          1854:     answers with the correct error message ("no such server") now.
        !          1855:   - WHOIS commands weren't always forwarded as requested.
        !          1856:   - The server sets a correct default AWAY message now when propagating
        !          1857:     between servers (bug introduced in 0.6.0).
        !          1858:   - Fixed up and enhanced CHANINFO command: channel keys and user limits
        !          1859:     are synchronized between servers now, too.
        !          1860:   - MODE returns the key and user limit for channel members correctly now.
        !          1861:   - Non-members of a channel could crash the server when trying to change
        !          1862:     its modes or modes of its members.
        !          1863:   - The server didn't validate weather a target user is a valid channel
        !          1864:     member when changing his channel user modes which could crash ngIRCd.
        !          1865:
        !          1866:
        !          1867: Older changes (sorry, only available in German language):
        !          1868:
        !          1869: ngIRCd 0.6.0, 24.12.2002
        !          1870:
        !          1871:   ngIRCd 0.6.0-pre2, 23.12.2002
        !          1872:   - neuer Numeric 005 ("Features") beim Connect.
        !          1873:   - LUSERS erweitert: nun wird die maximale Anzahl der lokalen und globalen
        !          1874:     Clients, die dem Server bzw. im Netzwerk seit dem letzten (Re-)Start
        !          1875:     dem Server gleichzeitig bekannt waren, angezeigt.
        !          1876:
        !          1877:   ngIRCd 0.6.0-pre1, 18.12.2002
        !          1878:   - beim Schliessen einer Verbindung zeigt der Server nun vor dem ERROR
        !          1879:     noch eine Statistik ueber die empfangene und gesendete Datenmenge an.
        !          1880:   - der Server wartet bei einer eingehenden Verbindung nun laenger auf den
        !          1881:     Resolver (4 Sekunden), wenn das Ergebnis eintrifft setzt er aber den
        !          1882:     Login sofort fort (bisher wurde immer mind. 1 Sekunde gewartet).
        !          1883:   - Connection-Strukturen werden nun "pool-weise" verwaltet; der Pool wird
        !          1884:     bei Bedarf bis zu einem konfigurierten Limit vergroessert.
        !          1885:   - Mit der neuen Konfigurationsvariable "MaxConnections" (Sektion "Global")
        !          1886:     kann die maximale Anzahl gleichzeitiger Verbindungen begrenzt werden.
        !          1887:     Der Default ist -1, "unlimitiert".
        !          1888:   - der Server erkennt nun, ob bereits eine eingehende Verbindung von einem
        !          1889:     Peer-Server besteht und versucht dann nicht mehr, selber eine eigene
        !          1890:     ausgehende Verbindung zu diesem auufzubauen. Dadurch kann nun auf beiden
        !          1891:     Servern in der Konfiguration ein Port fuer den Connect konfiguriert
        !          1892:     werden (beide Server versuchen sich dann gegenseitig zu connectieren).
        !          1893:   - Test-Suite und Dokumentation an A/UX angepasst.
        !          1894:   - unter HP-UX definiert das configure-Script nun _XOPEN_SOURCE_EXTENDED.
        !          1895:   - Server identifizieren sich nun mit asynchronen Passwoertern, d.h. das
        !          1896:     Passwort, welches A an B schickt, kann ein anderes sein als das, welches
        !          1897:     B als Antwort an A sendet. In der Konfig.-Datei, Abschnitt "Server",
        !          1898:     wurde "Password" dazu durch "MyPassword" und "PeerPassword" ersetzt.
        !          1899:   - Der Server kann nun zur Laufzeit die Konfiguration neu einlesen: dies
        !          1900:     macht er nach dem Befehl REHASH oder wenn ein HUP-Signal empfangen wird.
        !          1901:   - Channel-Mode "P" ("persistent") kann nur noch von IRC-Operatoren gesetzt
        !          1902:     werden. Grund: User koennen den Server sonst leicht "Channel-Flooden".
        !          1903:   - MOTD kann nun an andere Server geforwarded werden.
        !          1904:   - IRC-Befehl "TIME" implementiert.
        !          1905:   - Server-Server-Links koennen nun komprimiert werden, dazu wird die zlib
        !          1906:     (www.zlib.org) benoetigt. Unterstuetzt die Gegenseite die Komprimierung
        !          1907:     nicht, wird automatisch unkomprimiert kommuniziert. Das Verfahren ist
        !          1908:     kompatibel mit dem Original-ircd 2.10.3, d.h. beide Server koennen
        !          1909:     miteinander ueber komprimiert Links kommunizieren.
        !          1910:   - Handling der Schreibpuffer umgestellt: Server sollte schneller arbeiten.
        !          1911:   - Prefix-Fehler werden besser protokolliert (mit verursachendem Befehl).
        !          1912:   - SQUIT wird nicht mehr doppelt an andere Server weitergeleitet.
        !          1913:   - Der Server versucht nun vor dem Schliessen einer Verbindung Daten, die
        !          1914:     noch im Schreibpuffer stehen, zu senden.
        !          1915:   - Source in weiteres Modul "irc-info" aufgespalten.
        !          1916:   - Konfigurationsvariablen werden besser validiert: Laengen, Zahlen, ...
        !          1917:   - neuen Befehl STATS begonnen: bisher unterstuetzt wird "l" und "m".
        !          1918:   - bei ISON und USERHOST fehlte im Ergebnis-String der korrekte Absender.
        !          1919:   - IRC Operatoren koennen nun mit KILL User toeten. Achtung: ein Grund muss
        !          1920:     zwingend als zweiter Parameter angegeben werden!
        !          1921:   - neue Konfigurations-Variable "MaxJoins": Hiermit kann die maximale Zahl
        !          1922:     der Channels, in denen ein User Mitglied sein kann, begrent werden.
        !          1923:   - neuer, deutlich flexiblerer Parser fuer den MODE Befehl.
        !          1924:   - neue Channel-Modes l (User-Limit) und k (Channel-Key) implementiert.
        !          1925:
        !          1926: ngIRCd 0.5.4, 24.11.2002
        !          1927:
        !          1928:   - Fehler-Handling von connect() gefixed: der Server kann sich nun auch
        !          1929:     unter A/UX wieder zu anderen verbinden.
        !          1930:   - in den Konfigurationsvariablen ServerUID und ServerGID kann nun nicht
        !          1931:     nur die numerische ID, sondern auch der Name des Users bzw. der Gruppe
        !          1932:     verwendet werden. Beim Start des Daemons wird nun beides angezeigt.
        !          1933:   - Besseres Logging von Prefix-Fehlern.
        !          1934:   - angenommene Sockets werden nun korrekt auf "non-blocking" konfiguriert,
        !          1935:     beim Senden und Empfangen werden Blockierungen besser abgefangen.
        !          1936:   - RPL_UMODEIS hat Code 221, nicht 211 ... *argl*
        !          1937:   - select() in Try_Write() hat falschen (keinen!) Timeout verwendet;
        !          1938:     die "Zeit-Aufloesung" des Servers sind zudem nun 2 Sekunden (TIME_RES).
        !          1939:     Insgesamt sollte die Reaktionszeit des Server nun besser sein.
        !          1940:
        !          1941: ngIRCd 0.5.3, 08.11.2002
        !          1942:
        !          1943:   - NOTICE liefert nun wirklich nie mehr einen Fehler, auch dann nicht,
        !          1944:     wenn der sendende Client noch gar nicht registriert ist.
        !          1945:   - ein "schneller Server-Reconnect" wird nur noch dann versucht, wenn die
        !          1946:     Verbindung zuvor ordentlich (="lange genug") in Ordnung war; somit also
        !          1947:     nicht meht, wenn der Peer-Server gleich beim Connect ein ERROR liefert.
        !          1948:     Das vermeidet "Connect-Orgien".
        !          1949:   - einige Datentypen aufgeraumt: z.B. sind viele INT32s nun LONGs. Das ist
        !          1950:     auf Platformen mit 8-Byte-Integern kompatibler.
        !          1951:   - RPL_YOURHOST_MSG ist nun ircII- und RFC-kompatibel ;-)
        !          1952:   - Segfault unter hoher Netzaktivitaet behoben: in Conn_Close() wird die
        !          1953:     Connection-Struktur nun frueher als "ungueltig" markiert.
        !          1954:
        !          1955: ngIRCd 0.5.2, 04.10.2002
        !          1956:
        !          1957:   - Buffer Overflow in Read_Resolver_Result() behoben.
        !          1958:   - Format-String-Bugs, die zum Abbruch des Servers fuehrten, behoben.
        !          1959:   - Maximale Laenge eines IRC-Prefix wurde falsch berechnet.
        !          1960:
        !          1961: ngIRCd 0.5.1, 03.10.2002
        !          1962:
        !          1963:   - in RPL_YOURHOST_MSG wurde ein fehlerhafter Versionsstring geliefert.
        !          1964:   - Test-Suite: start-server.sh, stop-server.sh und stress-server.sh koennen
        !          1965:     nun "manuell" von der Kommandozeile gestartet werden, stress-server.sh
        !          1966:     startet per Default nur noch 5 Sessions, eine andere Zahl kann auf der
        !          1967:     Kommandozeile uebergeben werden (Syntax: "stress-server.sh <count>").
        !          1968:   - In bestimmten Faellen hat der Server versucht auf einen bereits wieder
        !          1969:     geschlossenen Socket Daten zu schreiben; das fuehrte zu einem Abbruch des
        !          1970:     Servers durch ein assert(). Nun wird geprueft, ob der Socket noch ok ist.
        !          1971:   - im "contrib"-Verzeichnis befindet sich nun eine RPM-Spec-Datei, aus den
        !          1972:     .tar.gz's koennen nun mit "rpm -ta <archiv>" RPM's erzeugt werden. Danke
        !          1973:     an Sean Reifschneider <jafo@tummy.com>!
        !          1974:   - Syntax von RPL_MYINFO_MSG korrigiert: liefert nun vier Parameter.
        !          1975:
        !          1976: ngIRCd 0.5.0, 20.09.2002
        !          1977:
        !          1978:   - Dokumentation aktualisiert.
        !          1979:   - Fehler bei Validierung von "AdminInfo2" behoben.
        !          1980:   - Test der Flags fuer "ps" in der Testsuite verbessert, ist nun zu mehr
        !          1981:     Plattformen kompatibler.
        !          1982:
        !          1983:   ngIRCd 0.5.0-pre2, 17.09.2002
        !          1984:   - Fix in IRC_WriteStrServersPrefix() war "badly broken" -- behoben.
        !          1985:
        !          1986:   ngIRCd 0.5.0-pre1, 16.09.2002
        !          1987:   - Manual-Pages ngircd.8 und ngircd.conf.5 begonnen.
        !          1988:   - Wird der Netzwerk-Sniffer aktiviert (--sniffer), so schaltet der
        !          1989:     ngIRCd nun automatisch in den Debug-Modus.
        !          1990:   - auf Systemen, die inet_aton() nicht kennen (wie z.B. A/UX), kann der
        !          1991:     ngIRCd nun dennoch auch aktiv Server-Links aufbauen.
        !          1992:   - h_errno wird auf Systemen, die das nicht kennen (wie z.B. HP-UX 10.20)
        !          1993:     nicht mehr verwendet. Somit compiliert der ngIRCd nun auch dort :-)
        !          1994:   - um auf dem Ziel-System nicht vorhandene Funktionen nachzubilden wird nun
        !          1995:     die "libngportab" erzeugt; genutzt wird dies bisher fuer vsnprintf().
        !          1996:     Nun compiliert der ngIRCd auch unter Solaris 2.5.1.
        !          1997:   - "persistente Channels" (Mode 'P') implementiert: diese koennen in der
        !          1998:     Konfigurationsdatei definiert werden (Sektion "Channel", vgl. Beispiel-
        !          1999:     Konfiguration "sample-ngircd.conf") und bleiben auch dann bestehen,
        !          2000:     wenn kein User mehr im Channel ist. Zu Channel-Operatoren werden bisher
        !          2001:     nur IRC-Operatoren, die den Channel betreten. Die persistenten Channels
        !          2002:     werden durch das Flag "P" gelennzeichnet, welches normal durch Channel-
        !          2003:     Op's gesetzt und geloescht werden kann.
        !          2004:   - bei "--configtest" werden keine leere Abschnitte mehr ausgegeben.
        !          2005:   - Source in weitere Module aufgespalten: lists, irc-op und resolve.
        !          2006:   - #include's aufgeraeumt: Header includieren keine anderen mehr.
        !          2007:   - KICK implementiert (bisher kann nur ein User aus einem Channel geckicked
        !          2008:     werden, Listen, wir im RFC vorgesehen, werden bisher nicht unterstuetzt).
        !          2009:   - INVITE, den Channel-Mode "i" sowie Invite-Lists ueber den MODE-Befehl
        !          2010:     (setzen, erfragen und loeschen) implementiert.
        !          2011:   - Source an ansi2knr fuer pre-ANSI-Compiler angepasst; ansi2knr in Source-
        !          2012:     Tree aufgenommen und in Build-System integriert; der ngIRCd compiliert
        !          2013:     nun z.B. unter A/UX mit dem nativen Compiler von Apple.
        !          2014:   - TOPIC lieferte bei unbekanntem Channel einen falschen Fehlercode.
        !          2015:   - LIST versteht nun Wildcards und kann an andere Server geforwarded werden.
        !          2016:   - wurde ein KILL fuer nicht-lokale Clients empfangen, so wurden die
        !          2017:     Verwaltungs-Strukturen nicht korrekt freigegeben.
        !          2018:   - empfangene NJOIN's wurden "zerhackt" an andere Server weitergegeben.
        !          2019:   - neue Konfigurationsoption "OperCanUseMode" (Sektion "Global"):
        !          2020:     ist sie aktiv, koennen IRC-Operatoren immer Channel-Modes setzen.
        !          2021:   - Dokumentation des neuen IRC+-Protokolls begonnen: doc/Protocol.txt
        !          2022:   - Protokoll- und Server-ID bei PASS-Befehlen auf neues Format umgestellt;
        !          2023:     bei empfangenen PASS-Befehlen werden diese zudem nun auch ausgewertet.
        !          2024:     Die unterstuetzten Flags sind in doc/Protocol.txt beschrieben.
        !          2025:   - mit dem neuen Befehl CHANINFO synchronisieren Server, die das IRC+-
        !          2026:     Protokoll unterstuetzen, Channel-Modes und Topics.
        !          2027:   - neue Option "--disable-ircplus" fuer das configure-Script, um das
        !          2028:     IRC+-Protokoll abzuschalten (per Default ist es aktiviert).
        !          2029:   - Ban-Lists (setzen, erfragen und loeschen) implementiert.
        !          2030:   - wird der Server mit "-n"/"--nodaemon" gestartet, so werden keine Mel-
        !          2031:     dungen mehr ueber Syslog ausgegeben, sondern nur noch auf der Konsole.
        !          2032:   - "Test-Suite" begonnen (in "make check" integriert): Dabei wird ein
        !          2033:     speziell konfigurierter Server auf Port 6789 gestartet, mit dem dann
        !          2034:     einige Tests durchgefuehrt werden (u.a. "Stress-Test" mit 50 Clients).
        !          2035:   - zu lange Operator-Namen in der Konfiguration wurden falsch gekuerzt.
        !          2036:   - kleine Anpassung an AIX 3.2.5: nun laeuft der ngIRCd auch dort :-)
        !          2037:   - ADMIN-Befehl implementiert. Die Daten hierzu werden in der Konfig-Datei
        !          2038:     im [Global]-Abschnitt mit den Variablen "AdminInfo1", "AdminInfo2" und
        !          2039:     "AdminEMail" konfiguriert.
        !          2040:
        !          2041: ngIRCd 0.4.3, 11.06.2002
        !          2042:
        !          2043:   - Bei PRIVMSG und NOTICE hat der ngIRCd nicht ueberpruft, ob das Ziel
        !          2044:     ueberhaupt ein User ist. War es keiner, so fuehrte dies zu einem
        !          2045:     Abbruch des Servers [es wurde assert() aufgerufen].
        !          2046:
        !          2047: ngIRCd 0.4.2, 29.04.2002
        !          2048:
        !          2049:   - LUSERS verzaehlt sich bei eigenen Server-Links nicht mehr.
        !          2050:   - QUIT wird nun auch von noch nicht registrierten Clients akzeptiert.
        !          2051:   - IRC-Funktion LIST implementiert; bisher werden allerdings noch keine
        !          2052:     Wildcards (bis auf "*") unterstuetzt.
        !          2053:
        !          2054: ngIRCd 0.4.1, 08.04.2002
        !          2055:
        !          2056:   - Bei Server-Links wird nicht mehr an Hand der Anzahl der Parameter
        !          2057:     eines empfangenen SERVER-Befehls, sondern "intern" erkannt, ob es
        !          2058:     sich um eine ein- oder ausgehende Verbindung handelt und somit das
        !          2059:     eigene PASS-SERVER-Paar gesendet werden muss oder nicht. Da sich
        !          2060:     verschiedene Versionen des Original-ircd's anders verhalten, schlug
        !          2061:     die Anmeldung je nach Gehenseite evtl. fehl.
        !          2062:   - Bei einem NICK-Befehl eines lokalen Client konnte der Server ab-
        !          2063:     stuerzen, da ein Format-String einer Log-Meldung fehlerhaft war.
        !          2064:
        !          2065: ngIRCd 0.4.0, 01.04.2002
        !          2066:
        !          2067:   - IRC-Befehle nochmal auf weitere Source-Dateien aufgespalten.
        !          2068:   - WHO implementiert (bisher ohne komplette Unterstuetzung von Masks).
        !          2069:   - Der AWAY-Mode wurde nicht ueber mehrere Server-Links weitergegeben.
        !          2070:   - stderr wird nun in eine Datei umgelenkt (/tmp/ngircd-<PID>.err).
        !          2071:     Laeuft der Server nicht im Debug-Modus, so wird diese bei Programm-
        !          2072:     ende geloescht. Sollte der Server abstuerzen, finden sich hier evtl.
        !          2073:     zusaetzliche Informationen.
        !          2074:   - In Nicknames wird das Zeichen "-" nun als zulaessig erkannt.
        !          2075:   - die Beispiel-Konfigurationsdatei (doc/sample-ngircd.conf) wird als
        !          2076:     ngircd.conf installiert, wenn noch keine "echte" Konfigurationsdatei
        !          2077:     vorhanden ist.
        !          2078:   - bei WHO, WHOIS und NAMES wird nun nur noch der Status "Operator" oder
        !          2079:     "voiced" geliefert -- nicht mehr beides.
        !          2080:   - Server-Gruppen implementiert: es wird immer nur zu einem Server in
        !          2081:     einer Gruppe eine Verbindung aufgebaut, klappt es beim ersten Server
        !          2082:     nicht, so wird der naechste probiert (Variable "Group" in der Kon-
        !          2083:     figurationsdatei, Sektion [Server]).
        !          2084:   - IRC_PING() ist, wenn nicht im "strict RFC"-Mode, toleranter und ak-
        !          2085:     zeptiert beliebig viele Parameter (z.B. BitchX sendet soetwas).
        !          2086:   - die "Portab-Header" werden nicht mehr benoetigt, die System-Erkennung
        !          2087:     wird nun ausschliesslich vom configure-Script durchgefuehrt. System-
        !          2088:     abhaengige Definitionen finden sich nun unter src/portrab/.
        !          2089:   - Clients und Channels werden nicht mehr ueber ihren Namen, sondern
        !          2090:     einen Hash-Wert gesucht: sollte deutlich schneller sein.
        !          2091:   - neuer Kommandozeilen-Parameter "--configtest": die Konfiguration wird
        !          2092:     gelesen und dann die verwendeten Werte angezeigt.
        !          2093:   - Client-Mode "s" (Server Notices) implementiert.
        !          2094:   - mit dem neuen Kommandozeilen-Parameter "--config"/"-f" kann eine
        !          2095:     alternative Konfigurationsdatei angegeben werden.
        !          2096:   - nach dem Start kann der ngIRCd, wenn er mit root-Rechten laeuft,
        !          2097:     zu einer anderen User-ID und Group-ID wechseln.
        !          2098:   - URL der Homepage wird u.a. bei "--version" mit angezeigt.
        !          2099:
        !          2100: ngIRCd 0.3.0, 02.03.2002
        !          2101:
        !          2102:   - bekommt der Server ein HUP-Signal, so startet er neu -- genau so, wie
        !          2103:     er auf den IRC-Befehl RESTART reagiert.
        !          2104:   - FAQ um Hinweise auf den Bugtracker erweitert.
        !          2105:   - neuer Kommandozeilen-Schalter "--passive" (-p): wird er angegeben, so
        !          2106:     verbindet sich der ngIRCd nicht mehr automatisch zu anderen Servern.
        !          2107:     Zum Debuggen manchmal ganz praktisch :-)
        !          2108:   - direkt nach dem Start schreibt der ngIRCd nun die aktiven Kommando-
        !          2109:     zeilenschalter in's Logfile (Passive, Debug, Sniffer ...).
        !          2110:   - das Signal-Flag SA_RESTART wird nur noch gesetzt, wenn es auf dem
        !          2111:     jeweiligen System auch definiert ist.
        !          2112:   - bei ausgehenden Verbindungen wird nun der Ziel-Port protokolliert.
        !          2113:   - neue Befehle VERSION und KILL implementiert.
        !          2114:   - make-Target "check" (und "distcheck") mit Sinn erfuellt :-)
        !          2115:     (die Tests sind aber bisher nicht all zu tiefgehend ...)
        !          2116:   - Durch einen Ueberlauf konnte die Idle-Time bei WHOIS negativ werden ...
        !          2117:   - Anpassungen an A/UX: gehoert nun auch zu den unterstuetzten Platformen.
        !          2118:   - WHOIS wird nicht mehr automatisch an den "Original-Server" weiterge-
        !          2119:     leitet: war eh nicht RFC-konform und machte mit Clients Probleme.
        !          2120:   - an User wird nun immer ein "komplettes" Prefix (mit Host-Mask) ver-
        !          2121:     schickt, Server bekommen nach wie vor kurze: das "Original" hat bei
        !          2122:     bestimmten Befehlen (PRIVMSG) ansonsten evtl. Probleme ...
        !          2123:   - NAMES korrigiert und vollstaendig implementiert.
        !          2124:   - SQUIT wird auf jeden Fall geforwarded, zudem besseres Logging.
        !          2125:   - Ist ein Nick bei der User-Registrierung bereits belegt, nimmt der
        !          2126:     Server nun korrekt weitere NICK-Befehle an und verwendet diese.
        !          2127:   - PRIVMSG beachtet nun die Channel-Modes "n" und "m".
        !          2128:   - AWAY implementiert. PRIVMSG, MODE, USERHOST und WHOIS angepasst.
        !          2129:   - der ngIRCd unterstuetzt nun Channel-Topics (TOPIC-Befehl).
        !          2130:   - ausgehende Server-Verbindungen werden nun asynchron connectiert und
        !          2131:     blockieren nicht mehr den ganzen Server, wenn die Gegenseite nicht
        !          2132:     erreicht werden kann (bis zum Timeout konnten Minuten vergehen!).
        !          2133:   - Wert der Konfigurations-Variable "ConnectRetry" wird besser beachtet.
        !          2134:   - Channel- und Nicknames werden nun ordentlich validiert.
        !          2135:
        !          2136: ngIRCd 0.2.1, 17.02.2002
        !          2137:
        !          2138:   - NICK korrigiert: es werden nun auch alle "betroffenen" User informiert.
        !          2139:   - configure-Script erweitert, u.a. bessere Anpassung an BeOS: dort wird
        !          2140:     nun die "libbe" zum ngIRCd gelinkt, somit funktioniert auch syslog.
        !          2141:   - Fehlerhafte bzw. noch nicht verstandene Modes werden nun ausfuehrlicher
        !          2142:     an den Client geliefert.
        !          2143:
        !          2144: ngIRCd 0.2.0, 15.02.2002
        !          2145:
        !          2146:   - Nicknames und Channel-Namen werden etwas besser auf Gueltigkeit ueber-
        !          2147:     prueft; ist aber nach wie vor noch nicht ausreichend.
        !          2148:   - NJOINS von Servern wurden nicht an andere Server weitergeleitet.
        !          2149:   - Begonnen Channel-Modes und User-Channel-Modes zu implementieren: der
        !          2150:     Server versteht an User-Modes o und v, beachtet letzteres allerdings
        !          2151:     noch nirgends. Bekannte (aber nicht beachtete!) Channel-Modes sind
        !          2152:     bisher a, m, n, p, q, s und t. Diese Modes werden von Usern ange-
        !          2153:     nommen, von anderen Servern werden auch unbekannte Modes uebernommen.
        !          2154:   - Benutzer von connectierenden Servern wurden nicht in den Channels ange-
        !          2155:     kuendigt, es wurden nur die internen Strukturen angepasst.
        !          2156:   - Nach dem Connect eines Users werden LUSERS-Informationen angezeigt.
        !          2157:
        !          2158: ngIRCd 0.1.0, 29.01.2002
        !          2159:
        !          2160:   - User-Modes bei User-Registrierungen von andere Servern (NICK-Befehl)
        !          2161:     wurden falsch uebernommen. Zudem wurden die Modes falsch gekuerzt.
        !          2162:   - Server-Verbindungen werden nun nach dem Start erst nach einer kurzen
        !          2163:     Pause aufgebaut (zur Zeit drei Sekunden).
        !          2164:   - Hilfetext korrigiert: --help und --version waren vertauscht, die
        !          2165:     Option --sniffer wurde gar nicht erwaehnt.
        !          2166:   - FAQ.txt in doc/ begonnen.
        !          2167:   - der IRC-Sniffer wird nur noch aktiviert, wenn die Option auf der
        !          2168:     Kommandozeile angegeben wurde (bei entsprechend compiliertem Server).
        !          2169:   - Channels implementiert, bisher jedoch noch ohne Channel-Modes, d.h.
        !          2170:     es gibt keine Channel-Ops, kein Topic, kein "topic lock" etc. pp.
        !          2171:     Chatten in Channels ist aber natuerlich moeglich ;-)
        !          2172:   - neue Befehle fuer Channles: JOIN, PART und NJOIN.
        !          2173:   - durch die Channels einige Aenderungen an PRIVMSG, WHOIS, MODE etc.
        !          2174:   - neu connectierenden Servern werden nun Channels mit NJOIN angekuendigt.
        !          2175:   - Signal-Hander geaendert: die Fehlermeldung "interrupted system call"
        !          2176:     sollte so nicht mehr auftreten.
        !          2177:   - "spaeter" neu connectierende Server werden nun im Netz angekuendigt.
        !          2178:   - SERVER-Meldungen an andere Server sind nun korrekt sortiert.
        !          2179:   - Clients werden nun korrekt sowohl nur ueber den Nickname als auch die
        !          2180:     komplette "Host Mask" erkannt.
        !          2181:
        !          2182: ngIRCd 0.0.3, 16.01.2002
        !          2183:
        !          2184:   - Server-Links vollstaendig implementiert: der ngIRCd kann nun auch
        !          2185:     "Sub-Server" haben, also sowohl als Leaf-Node als auch Hub in einem
        !          2186:     IRC-Netzwerk arbeiten.
        !          2187:   - MODE und NICK melden nun die Aenderungen an andere Server, ebenso
        !          2188:     die Befehle QUIT und SQUIT.
        !          2189:   - WHOIS wird nun immer an den "Original-Server" weitergeleitet.
        !          2190:   - Parses handhabt Leerzeichen zw. Parametern nun etwas "lockerer".
        !          2191:   - Status-Codes an den Server selber werden ignorier.
        !          2192:   - Log-Meldungen und Log-Level ueberarbeitet und korrigiert.
        !          2193:   - Kommandozeilen-Parser: Debug- und No-Daemon-Modus, Hilfe.
        !          2194:   - ngIRCd wandelt sich nun in einen Daemon (Hintergrundprozess) um.
        !          2195:   - WHOIS korrigiert: Anfrage wurde u.U. an User geforwarded anstatt vom
        !          2196:     Server beantwortet zu werden.
        !          2197:   - neue Befehle: LUSERS, LINKS
        !          2198:   - Client-Modes von Remote-Servern wurden nicht korrekt uerbernommen.
        !          2199:
        !          2200: ngIRCd 0.0.2, 06.01.2002
        !          2201:
        !          2202:   - Struktur der Konfigurationsdatei geaendert: sie ist nun "Samba like",
        !          2203:     d.h. sie besteht aus Abschnitten (siehe "doc/sample-ngircd.conf").
        !          2204:   - Es koennen mehrere IRC-Server-Opertatoren konfiguriert werden.
        !          2205:   - Zombies der Resolver-Prozesse werden nun ordentlich "getoetet".
        !          2206:   - NICK kann nun die Gross- und Kleinschreibung eines Nicks aendern.
        !          2207:   - ein Server-Passwort ist nun konfigurierbar.
        !          2208:   - neue Befehle: ERROR, SERVER, NJOIN (nur als "Fake"), SQUIT.
        !          2209:   - Asynchroner Resolver Hostname->IP implementiert.
        !          2210:   - Server-Links teilweise implementiert: bisher kann der ngIRCd jedoch
        !          2211:     nur "leafed server" sein, d.h. keine "Client-Server" haben. Einige
        !          2212:     Befehle sind auch noch nicht (optimal) angepasst: PRIVMSG funktioniert
        !          2213:     aber bereits, ebenso wie WHOIS (letzterer wird immer an den Server,
        !          2214:     auf dem der User registriert ist, weitergegeben).
        !          2215:   - "arpa/inet.h" wird nur noch includiert, wenn vorhanden.
        !          2216:   - Fehler bei select() fuerhen nun zum Abbruch von ngIRCd, bisher landete
        !          2217:     der Server zumeist in einer Endlosschleife.
        !          2218:   - Logmeldungen und Level an vielen Stellen verbessert.
        !          2219:   - lokalen Usernamen wird nun ein "~" vorangestellt, da bisher noch keine
        !          2220:     Ident-Anfragen gemacht werden.
        !          2221:
        !          2222: ngIRCd 0.0.1, 31.12.2001
        !          2223:
        !          2224:   - erste oeffentliche Version von ngIRCd als "public preview" :-)

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