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Annotation of ircnowd/NEWS, Revision 1.1.1.1

1.1       bountyht    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:                                   -- NEWS --
                     10:
                     11: ngIRCd 26.1 (2021-01-02)
                     12:
                     13:   - This release is a bugfix release only, without new features.
                     14:
                     15: ngIRCd 26 (2020-06-20)
                     16:
                     17:   ngIRCd 26~rc2 (2020-06-11)
                     18:   - Add AppStream metadata file (contrib/de.barton.ngircd.metainfo.xml).
                     19:   - Various bug fixes, see the ChangeLog. No new or changed functionality.
                     20:
                     21:   ngIRCd 26~rc1 (2020-05-10)
                     22:   - Allow up to 512 characters per line in MOTD and help text files (but keep
                     23:     in mind that lines can't get that long, because they have to be prefixed
                     24:     before being sent to the client). But this allows for more fancy MOTDs :-)
                     25:     Closes #271.
                     26:   - Show the actually allowed channel types in the ISUPPORT(005) numeric which
                     27:     are configured by the "AllowedChannelTypes" configuration variable.
                     28:     Closes #273.
                     29:   - Handle commands in the read buffer before reading more data and don't wait
                     30:     for the network in this case: If there are more bytes in the read buffer
                     31:     already than a single valid IRC command can get long (513 bytes), wait for
                     32:     this/those command(s) to be handled first and don't try to read even more
                     33:     data from the network (which most probably would overflow the read buffer
                     34:     of this connection soon).
                     35:   - Log G-/K-Line changes only when not initiated by a server: this prevents
                     36:     the log from becoming spammed during "net bursts".
                     37:   - Update test suite to include SSL tests, including checking for reloading
                     38:     certificates during runtime.
                     39:   - Add support for GnuTLS certificate reload, which is quite handy when using
                     40:     Let's Encrypt, for example. Until now this was only supported when linked
                     41:     with OpenSSL. Thanks a lot, Hilko Bengen <bengen@hilluzination.de>!
                     42:   - Allow setting arbitrary channel modes in the configuration file by handling
                     43:     them like in MODE commands, and allow multiple "Modes =" lines per [Channel]
                     44:     section. Thanks to Michi <michi+ngircd@dataswamp.org>!
                     45:     Closes #55.
                     46:   - Add "FNC" (forced nick changes) to ISUPPORT(005) numeric. Most probably
                     47:     this doesn't make any difference to any client, but it seems correct.
                     48:     See <http://www.irc.org/tech_docs/005.html> for details.
                     49:   - Enhance handling of command line errors, and return with exit code 0 ("no
                     50:     error") when "--help" or "--version" is used (which resulted in exit code 1,
                     51:     "error" before). Exit with code 2 ("command line error") for all other
                     52:     invalid command line options, and show the error message itself on stderr
                     53:     (instead of stdout and exit code 1, "generic error", as before).
                     54:     This new behaviour is more in line with the GNU "coding standards",
                     55:     see <https://www.gnu.org/prep/standards/html_node/_002d_002dhelp.html>.
                     56:   - Add ./contrib/nglog.sh: This script parses the log output of ngircd(8),
                     57:     and colorizes the messages according to their log level. Example usage:
                     58:     ngircd -f $PWD/doc/sample-ngircd.conf -np | ./contrib/nglog.sh
                     59:   - Enlarge buffers of info texts to 128 bytes. This includes:
                     60:     - "Real name" of a client (4th filed of the USER command).
                     61:     - Server info text ("Info" configuration option).
                     62:     - Admin info texts and email address ("AdminInfo1", "AdminInfo2" and
                     63:       "AdminEmail" configuration options).
                     64:     - Network name ("Network" configuration option).
                     65:     The limit was 64 bytes before ...
                     66:     Closes #258.
                     67:   - Streamline handling of invalid and unset server name: Don't exit during
                     68:     runtime (REHASH command, HUP signal), because the server name can't be
                     69:     changed in this case anyway and the new invalid name will be ignored.
                     70:   - Slightly reorder startup steps, and enhance logging:
                     71:     - Show name of configuration file at the beginning of start up.
                     72:     - Add a message when ngIRCd is ready, including its host name.
                     73:     - Show name of configuration file on REHASH (SIGHUP), too.
                     74:     - Change level of "done message" to NOTICE, like "starting" & "ready".
                     75:     - Initialize IO functions before channels, connections, clients, ...
                     76:   - configure.ng: OpenSSL can depends on lz or latomic so use pkg-config to
                     77:     find those dependencies and fallback to existing mechanism.
                     78:     Closes #256.
                     79:
                     80: ngIRCd 25 (2019-01-23)
                     81:
                     82:   - Implement new configuration option "MaxPenaltyTime", which configures the
                     83:     maximum penalty time increase in seconds, per penalty event. Set to -1 for
                     84:     no limit (the default), 0 to disable penalties altogether. ngIRCd doesn't
                     85:     use penalty increases higher than 2 seconds during normal operation, so
                     86:     values higher than 1 rarely make sense.
                     87:     Disabling (or reducing) penalties can greatly speed up "make check" runs
                     88:     for example, see below, but are mostly a debugging feature and normally
                     89:     not meant to be used on production systems!
                     90:     Some example timings running "make check" from my macOS workstation:
                     91:      - MaxPenaltyTime not set: 4:41,79s
                     92:      - "MaxPenaltyTime = 1":   3:14,71s
                     93:      - "MaxPenaltyTime = 0":     25,46s
                     94:     Closes #249 and #251.
                     95:   - Update Xcode project for latest Xcode version (10.0)
                     96:   - Allow a 5th parameter in WEBIRC. Thanks to "ItsOnlyBinary".
                     97:     Closes #247.
                     98:
                     99:   ngIRCd 25~rc1 (2018-08-11)
                    100:   - Only send TOPIC updates to a channel when the topic actually changed:
                    101:     This prevents the channel from becoming flooded by unnecessary TOPIC update
                    102:     messages, that can happen when IRC services try to enforce a certain topic
                    103:     but which is already set (at least on the local server), for example.
                    104:     Therefore still forward it to all servers, but don't inform local clients
                    105:     (still update setter and timestamp information, though!).
                    106:   - Update Xcode project for latest Xcode version (9.2). This includes adding
                    107:     missing and deleting obsolete file references.
                    108:   - Handle user mode "C" ("Only users that share a channel are allowed to send
                    109:     messages") like user mode "b" ("block private messages and notices"): allow
                    110:     messages from servers, services, and IRC Operators, too. Change proposed by
                    111:     "wowaname" back in 2015 in #ngircd, thanks!
                    112:   - Allow IRC Ops and remote servers to KILL service clients: such clients
                    113:     behave like regular users, therefore IRC operators and servers should be
                    114:     able to KILL them: for example to resolve nick collisions.
                    115:     Closes #242.
                    116:
                    117: ngIRCd 24 (2017-01-20)
                    118:
                    119:   ngIRCd 24~rc1 (2017-01-07)
                    120:   - Log privilege violations and failed OPER request with log level "error"
                    121:     and send it to the "&SERVER" channel, too.
                    122:   - Immediately shut down connection when receiving an "ERROR" command,
                    123:     don't wait for the peer to close the connection. This allows the daemon
                    124:     to forward the received "ERROR" message in the network, instead of the
                    125:     very generic "client closed connection" message.
                    126:   - Explicitly forbid remote servers to modify "x-lines" (G-LINES) when the
                    127:     "AllowRemoteOper" configuration option isn't set, even when the command
                    128:     seems to originate from the remote server itself: this prevents GLINE's
                    129:     to become set during server handshake in this case (what wouldn't be
                    130:     possible during regular runtime when a remote IRC Op sends the command)
                    131:     and what can't be undone by IRC Ops later on (because of the missing
                    132:     "AllowRemoteOper" option) ...
                    133:   - Update Xcode project for latest Xcode version (8.0), and fix "duplicate
                    134:     symbols" error messages when building (linking) the binary.
                    135:   - Add "Documentation" variables to systemd configuration files.
                    136:   - Make sure that SYSCONFDIR is always set, which can be handy when
                    137:     using source code linters when ./configure hasn't been run already.
                    138:   - Add the new "PAMServiceName" configuration option to specify the name
                    139:     used as PAM service name. This setting allows to run multiple ngIRCd
                    140:     instances with different PAM configurations for each instance.
                    141:     Thanks to Christian Aistleitner <christian@quelltextlich.at> for the
                    142:     patch, closes #226.
                    143:   - Add an ".editorconfig" file to the project.
                    144:   - Limit the number of message target, and suppress duplicates: This
                    145:     prevents an user from flooding the server using commands like this:
                    146:     "PRIVMSG nick1,nick1,nick1,...".
                    147:     Duplicate targets are suppressed silently (channels and clients).
                    148:     In addition, the maximum number of targets per PRIVMSG, NOTICE, ...
                    149:     command are limited to MAX_HNDL_TARGETS (25). If there are more, the
                    150:     daemon sends the new 407 (ERR_TOOMANYTARGETS_MSG) numeric, containing
                    151:     the first target that hasn't been handled any more. Closes #187.
                    152:   - Make contrib/platformtest.sh script more portable, and only show
                    153:     "runs=Y" when the test suite really has been passed successfully.
                    154:
                    155: ngIRCd 23 (2015-11-16)
                    156:
                    157:   ngIRCd 23~rc1 (2015-09-06)
                    158:   - Use "NOTICE *" before registration instead of "NOTICE AUTH". "AUTH" is
                    159:     a valid nickname so sending notices to it is probably not a good idea.
                    160:     Use "*" as the target instead as done with numerics when the nick is not
                    161:     available. This mimics the behavior in Charybdis, IRCD-Hybrid, InspIRCd
                    162:     2.2, Plexus 4, etc. Closes #217.
                    163:     The "NoticeAuth" configuration variable (ngircd.conf) has been renamed
                    164:     to "NoticeBeforeRegistration" accordingly, but the old name is still
                    165:     supported for compatibility reasons.
                    166:   - Implement new channel mode "N" (regular users can't change their nick
                    167:     name while on this channel). Closes #214.
                    168:   - Keep track of who placed bans, invites, and excepts.
                    169:     Idea and implementation by LucentW, Thanks! Closes #203.
                    170:   - Implement numeric RPL_LISTSTART(321). lightIRC and other clients
                    171:     expecting RPL_LISTSTART should now behave correctly.
                    172:     Idea and implementation by LucentW, Thanks! Closes #207.
                    173:   - Streamline the effect of "MorePrivacy" option: Update documentation
                    174:     in ngircd.conf(5); don't hide channels for IRC Ops on LIST and don't
                    175:     hide IP addresses/hostnames on WHOIS when "MorePrivacy" is in effect.
                    176:     This closes #198.
                    177:   - IRC operators now can kick anyone when "OperCanMode" is set.
                    178:     Idea and implementation by LucentW, Thanks! Closes #202.
                    179:   - Implement user mode "I": Hide channels on WHOIS: this mode prevents
                    180:     ngIRCd from showing channels on WHOIS (IRC Operators can always see
                    181:     the channel list).
                    182:     Idea and implementation by LucentW, Thanks! Closes #197.
                    183:   - INVITE command: Implement ERR_USERNOTONSERV(504) numeric and make sure
                    184:     that the target user is on the same server when inviting other users
                    185:     to local ("&") channels.
                    186:     Idea by Cahata, thanks! Closes #183.
                    187:   - MODE command: Always report channel creation time. Up to now when
                    188:     receiving a MODE command, ngIRCd only reported the channel creation
                    189:     time to clients that were members of the channel. This patch reports
                    190:     the channel creation time to all clients, regardless if they are joined
                    191:     to that channel or not. At least ircd-seven behaves like this.
                    192:     This closes #188. Reported by Cahata, thanks!
                    193:
                    194: ngIRCd 22.1 (2015-04-06)
                    195:
                    196:   - Update "CipherList" to not enable SSLv3 by default. Idea, initial patch,
                    197:     and testing by Christoph Biedl <ngircd.anoy@manchmal.in-ulm.de>.
                    198:   - Change ngIRCd test suite not to use DNS lookups: Different operating
                    199:     systems do behave quite differently when doing DNS lookups, for example
                    200:     "127.0.0.1" sometimes resolves to "localhost" and sometimes to
                    201:     "localhost.localdomain" (for example OpenBSD). And other OS resolve
                    202:     "localhost" to the real host name (for example Cygwin). So not using
                    203:     DNS at all makes the test site much more portable.
                    204:
                    205: ngIRCd 22 (2014-10-11)
                    206:
                    207:   - Match all list patterns case-insensitive: this affects the invite-,
                    208:     ban-, and except lists, as well as G-Lines an K-Lines.
                    209:     Problem pointed out by "wowaname" on #ngircd, thanks!
                    210:
                    211:   ngIRCd 22~rc1 (2014-09-29)
                    212:   - Sync "except lists" between servers: Up to now, ban, invite, and G-Line
                    213:     lists have been synced between servers while linking -- but obviously
                    214:     nobody noticed that except list have been missing ever since. Until now.
                    215:     Thanks to "j4jackj", who reported this issue in #ngircd.
                    216:   - Allow longer user names (up to 63 characters) for authentication.
                    217:   - Increase MAX_SERVERS from 16 to 64: There are installations out there
                    218:     that would like to configure more than 16 links per server, so increase
                    219:     this limit. Best would be to get rid of MAX_SERVERS altogether and make
                    220:     if fully dynamic, but start with this quick and dirty hack ...
                    221:   - Test suite/platformtest.sh: Detect when tests have been skipped.
                    222:   - Allow "DefaultUserModes" to set all possible modes, including modes only
                    223:     settable by IRC Operators.
                    224:   - Implement user mode "F": "relaxed flood protection". Clients with mode
                    225:     "F" set are allowed to rapidly send data to the daemon. This mode is only
                    226:     settable by IRC Operators and can cause problems in the network -- so be
                    227:     careful and only set it on "trusted" clients!
                    228:     User mode "F" is used by Bahamut for this purpose, for example.
                    229:   - Use server password when PAM is compiled in but disabled.
                    230:   - Streamline punctuation of log messages.
                    231:   - Return ISUPPORT(005) numerics on "VERSION". This is how ircd-seven,
                    232:     Charybdis, Hybrid, and InspIRCd behave, for example.
                    233:   - configure: Only link "contrib/Debian" if it exists, which isn't the case
                    234:     on "VPATH builds", for example.
                    235:   - Show the account name in WHOIS. This uses the same numeric as Charybdis
                    236:     and ircu families: WHOISLOGGEDIN(330).
                    237:   - Pattern matching: Remove "range matching" in our pattern matching code
                    238:     using the "[...]" syntax, because [ and ] are valid characters in nick
                    239:     names and one has to quote them currently using the "\" character, which
                    240:     is quite unexpected for users.
                    241:   - platformtest.sh: New option "-x", don't regenerate build system and
                    242:     allow using separate source and build trees.
                    243:   - Test suite: explicitly enable glibc memory checking.
                    244:   - Make "MODE -k" handling more robust and compatible, send "fake '*' key"
                    245:     in all replies.
                    246:   - portabtest: Actually test the functions snprintf(), strlcpy(), strlcat(),
                    247:     and vsnprintf() for correctness, not only existence (which was quite
                    248:     useless, because if they weren't available, the program could not have
                    249:     been linked at all ...).
                    250:   - Implement new configuration option "Network": it is used to set the
                    251:     (completely optional) "network name", to which this instance of the
                    252:     daemon belongs. When set, this name is used in the ISUPPORT(005) numeric
                    253:     which is sent to all clients connecting to the server after logging in.
                    254:   - Update doc/Platforms.txt.
                    255:   - Various code cleanups, remove unused code, streamline error handling.
                    256:     Remove all imp.h and exp.h header files, support non-standard vsnprintf()
                    257:     return codes, and fix some K&R C portability issues. Streamline
                    258:     DEBUG_ARRAY, DEBUG_BUFFER, DEBUG_IO, DEBUG_ZIP definitions.
                    259:   - Increase penalty time to 10 seconds when handling OPER commands with an
                    260:     invalid password.
                    261:
                    262: ngIRCd 21.1 (2014-03-25)
                    263:
                    264:   - Don't ignore but use the server password when PAM is compiled in but
                    265:     disabled. Thanks to Roy Sindre Norangshol <roy.sindre@norangshol.no>!
                    266:   - doc/Platforms.txt: Update from master branch.
                    267:   - doc/Services.txt: Update information for Anope 2.x.
                    268:   - configure: add support for the LDFLAGS_END and LIBS_END variables to add
                    269:     linker flags and libraries at the end of the configure run (CFLAGS_END has
                    270:     been implemented already).
                    271:   - Update Copyright notices for 2014 :-)
                    272:
                    273: ngIRCd 21 (2013-10-30)
                    274:
                    275:   - Call arc4random_stir() in forked subprocesses, when available. This
                    276:     is required by FreeBSD <10 and current NetBSD at least to correctly
                    277:     initialize the "arc4" random number generator on these platforms.
                    278:
                    279:   ngIRCd 21~rc2 (2013-10-20)
                    280:   - Report the correct configuration file name on configuration errors,
                    281:     support longer configuration lines, and warn when lines are truncated.
                    282:
                    283:   ngIRCd 21~rc1 (2013-10-05)
                    284:   - Actually KILL clients on GLINE/KLINE. (Closes bug #156)
                    285:   - Add support to show all user links using the "STATS L" (uppercase)
                    286:     command (restricted to IRC Operators).
                    287:   - Implement configurable SSL cipher list selection for GnuTLS and OpenSSL
                    288:     using the new configuration option "CipherList". In addition, this
                    289:     changes the defaults to more secure values: "HIGH:!aNULL:@STRENGTH" for
                    290:     OpenSSL, and "SECURE128" for GnuTLS.
                    291:   - Show connection flag "s" (SSL) in RPL_TRACE{LINK|SERVER} messages: now
                    292:     you can check if a server-to-server link is SSL-encrypted or not using
                    293:     the IRC "TRACE" command.
                    294:   - Implement the new configuration option "DefaultUserModes" which lists
                    295:     user modes that become automatically set on new local clients right
                    296:     after login. Please note that only modes can be set that the client
                    297:     could set on itself, so you can't set "a" (away) or "o" (IRC Op),
                    298:     for example! User modes "i" (invisible) or "x" (cloaked) etc. are
                    299:     "interesting", though. (Closes bug #160)
                    300:   - Add support for the new METADATA "account" property, which allows
                    301:     services to automatically identify users after netsplits and across
                    302:     service restarts.
                    303:   - Implement a new configuration option "AllowedChannelTypes" that lists
                    304:     all allowed channel types (channel prefixes) for newly created channels
                    305:     on the local server. By default, all supported channel types are allowed.
                    306:     If set to the empty string, local clients can't create new channels at
                    307:     all, which equals the old "PredefChannelsOnly = yes" setting.
                    308:     This change deprecates the "PredefChannelsOnly" variable, too, but it is
                    309:     still supported and translated to the appropriate "AllowedChannelTypes"
                    310:     setting. When the old "PredefChannelsOnly" variable is processed, a
                    311:     warning message is logged. (Closes bug #152)
                    312:   - Add support for "client certificate fingerprinting". When a client
                    313:     passes an SSL certificate to the server, the "fingerprint" will be
                    314:     forwarded in the network which enables IRC services to identify the
                    315:     user using this certificate and not using passwords.
                    316:   - Implement a new configuration option "IncludeDir" in the "[Options]"
                    317:     section that can be used to specify a directory which can contain
                    318:     further configuration files and configuration file snippets matching
                    319:     the pattern "*.conf". These files are read in after the main server
                    320:     configuration file ("ngircd.conf" by default) has been read in and
                    321:     parsed.  The default is "$SYSCONFDIR/ngircd.conf.d", so that it is
                    322:     possible to adjust the configuration only by placing additional files
                    323:     into this directory. (Closes bug #157)
                    324:   - Add Travis-CI configuration file (".travis.yml") to project.
                    325:   - ngIRCd now accepts user names including "@" characters, saves the
                    326:     unmodified name for authentication but stores only the part in front
                    327:     of the "@" character as "IRC user name". And the latter is how
                    328:     ircd2.11, Bahamut, and irc-seven behave as well. (Closes bug #155)
                    329:   - Lots of IRC "information functions" like ADMIN, INFO, ... now accept
                    330:     server masks and names of connected users (in addition to server names)
                    331:     for specifying the target server of the command. (Closes bug #153)
                    332:   - Implement a new configuration option "IdleTimeout" in the "[Limits]"
                    333:     section of the configuration file which can be used to set a timeout
                    334:     in seconds after which the whole daemon will shutdown when no more
                    335:     connections are left active after handling at least one client.
                    336:     The default is 0, "never".
                    337:     This can be useful for testing or when ngIRCd is started using "socket
                    338:     activation" with systemd(8), for example.
                    339:   - Implement support for systemd(8) "socket activation".
                    340:   - Enable WHOIS to display information about IRC Services using the new
                    341:     numeric 310(RPL_WHOISSERVICE) This numeric is used for this purpose by
                    342:     InspIRCd, for example -- but as usual, other numerics are in use, too,
                    343:     like 613 in UltimateIRCd ...
                    344:     Please note that neither the Operator (+o) not the "bot status" (+B)
                    345:     of an IRC service is displayed in the output.
                    346:   - Update systemd(8) example configuration files in ./contrib/ directory:
                    347:     the "ngircd.service" file now uses the "forking" service type which
                    348:     enhances the log messages shown by "systemctl status ngircd.service",
                    349:     and the new "ngircd.socket" file configures a systemd socket that
                    350:     configures a socket for ngIRCd and launches the daemon on demand.
                    351:   - Enhance help system and the HELP command: now a "help text file" can be
                    352:     set using the new configuration option "HelpFile" ("global" section),
                    353:     which is read in and parsed on server startup and configuration reload,
                    354:     and then is used to output individual help texts to specific topics.
                    355:     Please see the file ./doc/Commands.txt for details.
                    356:
                    357: ngIRCd 20.3 (2013-08-23)
                    358:
                    359:   - This release is a bugfix release only, without new features.
                    360:   - Security: Fix a denial of service bug (server crash) which could happen
                    361:     when the configuration option "NoticeAuth" is enabled (which is NOT the
                    362:     default) and ngIRCd failed to send the "notice auth" messages to new
                    363:     clients connecting to the server (CVE-2013-5580).
                    364:
                    365: ngIRCd 20.2 (2013-02-15)
                    366:
                    367:   - This release is a bugfix release only, without new features.
                    368:   - Security: Fix a denial of service bug in the function handling KICK
                    369:     commands that could be used by arbitrary users to crash the daemon
                    370:     (CVE-2013-1747).
                    371:
                    372: ngIRCd 20.1 (2013-01-02)
                    373:
                    374:   - This release is a bugfix release only, without new features.
                    375:
                    376: ngIRCd 20 (2012-12-17)
                    377:
                    378:   - Allow user names ("INDENT") up to 20 characters when ngIRCd has not
                    379:     been configured for "strict RFC mode". This is useful if you are using
                    380:     external (PAM) authentication mechanisms that require longer user names.
                    381:     Patch suggested by Brett Smith <brett@w3.org>, see
                    382:     <http://arthur.barton.de/pipermail/ngircd-ml/2012-October/000579.html>.
                    383:
                    384:   ngIRCd 20~rc2 (2012-12-02)
                    385:   - Rework cloaked hostname handling and implement the "METADATA cloakhost"
                    386:     subcommand: Now ngIRCd uses two fields internally, one to store the
                    387:     "real" hostname and one to save the "cloaked" hostname. This allows
                    388:     "foreign servers" (aka "IRC services") to alter the real and cloaked
                    389:     hostnames of clients without problems, even when the user itself issues
                    390:     additional "MODE +x" and "MODE -x" commands.
                    391:
                    392:   ngIRCd 20~rc1 (2012-11-11)
                    393:   - Update doc/Services.txt: describe the upcoming version of Anope 1.9.8,
                    394:     then including a protocol module for ngIRCd. And remove our own patches
                    395:     in ./contrib/Anope because they aren't supported any more ...
                    396:   - Implement new "METADATA" command which can be used by remote servers
                    397:     and IRC services to update client metadata like the client info text
                    398:     ("real name"), user name, and hostname, and use this command to
                    399:     configure an cloaked hostname (user mode "+x") on remote servers:
                    400:     This prevents "double cloaking" of hostnames and even cloaked
                    401:     hostnames are in sync on all servers supporting "METADATA" now.
                    402:   - Implement new IRC "SVSNICK" command to allow remote servers (and IRC
                    403:     services) to change nicknames of already registered users. The SVSNICK
                    404:     command itself doesn't change the nickname, but it becomes forwarded
                    405:     to the server to which the user is connected to. And then this server
                    406:     initiates the real nickname changing using regular NICK commands.
                    407:     This allows to run mixed networks with old servers not supporting the
                    408:     SVSNICK command, because SVSNICK commands for nicknames on such servers
                    409:     are silently ignored and don't cause a desynchronization of the network.
                    410:   - New configuration option "MaxListSize" to configure the maximum number
                    411:     of channels returned by a LIST command. The default is 100, as before.
                    412:   - Implement user mode "b", "block messages": when a user has set mode "b",
                    413:     all private messages and notices to this user are blocked if they don't
                    414:     originate from a registered user, an IRC Op, server or service. The
                    415:     originator gets an error numeric sent back in this case,
                    416:     ERR_NONONREG_MSG (486), which is used by UnrealIRCd, too. (Closes #144)
                    417:   - Implement channel mode "V" (invite disallow): If the new channel mode
                    418:     "V" is set, the INVITE command becomes invalid and all clients get the
                    419:     new ERR_NOINVITE_MSG (518) reply. (Closes #143)
                    420:   - Implement channel mode "Q" and user mode "q": Both modes protect users
                    421:     from channel kicks: only IRC operators and servers can kick users having
                    422:     mode "q" or in channels with mode "Q". (Closes #141)
                    423:   - Allow users to "cloak" their hostname only when the configuration
                    424:     variable "CloakHostModeX" (introduced in 19.2) is set. Otherwise, only
                    425:     IRC operators, other servers, and services are allowed to set the user
                    426:     mode "+x": this prevents regular users from changing their hostmask to
                    427:     the name of the IRC server itself, which confused quite a few people ;-)
                    428:     (Closes #133)
                    429:   - New configuration option "OperChanPAutoOp": If disabled, IRC operators
                    430:     don't become channel operators in persistent channels when joining.
                    431:     Enabled by default, which has been the behavior of ngIRCd up to this
                    432:     patch. (Closes #135)
                    433:   - Allow IRC operators to see secret (+s) channels in LIST command as long
                    434:     as the "MorePrivacy" configuration option isn't enabled in the
                    435:     configuration file. (Closes #136)
                    436:   - Implement new (optional) IRC+ "CHARCONV" command to set a client
                    437:     character set that the server translates all messages to/from UTF-8.
                    438:     This feature requires the "libiconv" library and must be enabled using
                    439:     the new "--with-iconv" option of the ./configure script. See
                    440:     doc/Protocol.txt for details. (Closes #109)
                    441:   - Implement user mode "B" ("Bot flag"): it is settable and unsettable by
                    442:     every (non-restricted) client. This is how Unreal and InspIRCd do
                    443:     behave, and so do we :-)
                    444:   - Implement channel mode "M": Only the server, identified users and IRC
                    445:     operators are able to talk in such a channel.
                    446:   - Block nicknames that are reserved for services and are defined using the
                    447:     configuration variable "ServiceMask" in "Server" blocks; And this
                    448:     variable now can handle more than one mask separated by commas.
                    449:   - Implemented XOP channel user modes: "Half Op" ("+h", prefix "%") can set
                    450:     the channel modes +imntvIbek and kick all +v and normal users; "Admin"
                    451:     ("+a", prefix "&") can set channel modes +imntvIbekoRsz and kick all +o,
                    452:     +h, +v and normal users; and "Owner" ("+q", prefix "~") can set channel
                    453:     modes +imntvIbekoRsz and kick all +a, +o, +h, +v and normal users.
                    454:   - Implement hashed cloaked hostnames for both the "CloakHost" and
                    455:     "CloakHostModeX" configuration options: now the admin can use the new
                    456:     '%x' placeholder to insert a hashed version of the clients hostname,
                    457:     and the new configuration option "CloakHostSalt" defines the salt for
                    458:     the hash function. When "CloakHostSalt" is not set (the default), a
                    459:     random salt will be generated after each server restart.
                    460:
                    461: ngIRCd 19.2 (2012-06-19)
                    462:
                    463:   ngIRCd 19.2~rc1 (2012-06-13)
                    464:   - New configuration option "CloakHostModeX" to configure the hostname
                    465:     that gets used for IRC clients which have user mode "+x" enabled.
                    466:     Up to now, the name of the IRC server itself has been used for this,
                    467:     which still is the default when "CloakHostModeX" isn't set.
                    468:   - Add instructions for setting up Atheme IRC services.
                    469:   - Implement support for IRC capability handling, the new "CAP" command,
                    470:     and capability "multi-prefix" which allows both the NAME and WHO command
                    471:     handlers to return more than one "class prefix" to the client.
                    472:
                    473: ngIRCd 19.1 (2012-03-19)
                    474:
                    475:   - Really include _all_ patches to build the Anope module into the
                    476:     distribution archive ... ooops!
                    477:
                    478: ngIRCd 19 (2012-02-29)
                    479:
                    480:   ngIRCd 19~rc1 (2012-02-12)
                    481:   - Update preliminary ngIRCd protocol module for Anope 1.9.6, which now
                    482:     is the only supported version.
                    483:   - New numeric RPL_WHOISHOST_MSG(378), which returns the DNS host name
                    484:     (if available) and the IP address of a client in the WHOIS reply.
                    485:     Only the user itself and local IRC operators get this numeric.
                    486:   - Implement channel exception list (mode 'e'). This allows a channel
                    487:     operator to define exception masks that allow users to join the
                    488:     channel even when a "ban" would match and prevent them from joining:
                    489:     the exception list (e) overrides the ban list (b).
                    490:   - Implement user mode 'C': If the target user of a PRIVMSG or NOTICE
                    491:     command has the user mode 'C' set, it is required that both sender
                    492:     and receiver are on the same channel. This prevents private flooding
                    493:     by completely unknown clients.
                    494:   - New RPL_WHOISREGNICK_MSG(307) numeric in WHOIS command replies: it
                    495:     indicates if a nickname is registered (if user mode 'R' set).
                    496:   - Limit channel invite, ban, and exception lists to 50 entries and fix
                    497:     duplicate check and error messages when adding already listed entries
                    498:     or deleting no (longer) existing ones.
                    499:   - Limit the number of list items in the reply of LIST (100), WHO (25),
                    500:     WHOIS (10), and WHOWAS (25) commands.
                    501:   - Limit the MODE command to handle a maximum number of 5 channel modes
                    502:     that require an argument (+Ibkl) per call and report this number
                    503:     in the ISUPPORT(005) numeric: "MODES=5".
                    504:   - LINKS command: support <mask> parameter to limit the reply.
                    505:   - Add 1 second penalty for every further target on PRIVMSG/NOTICE
                    506:     commands: this reduces the possibility of flooding channels with
                    507:     commands like "PRIVMSG/NOTICE #a,#n,#c,... :message" a little bit.
                    508:     Problem noticed by Cahata, thanks!
                    509:   - New configuration option "PAMIsOptional": when set, clients not
                    510:     sending a password are still allowed to connect: they won't become
                    511:     "identified" and keep the "~" character prepended to their supplied
                    512:     user name. See "man 5 ngircd.conf" for details.
                    513:   - Fixed handling of WHO commands. This fixes two bugs: "WHO <nick>"
                    514:     returned nothing at all if the user was "+i" (reported by Cahata,
                    515:     thanks) and "WHO <nick|nickmask>" returned channel names instead
                    516:     of "*" when the user was member of a (visible) channel.
                    517:   - LUSERS reply: only count channels that are visible to the requesting
                    518:     client, so the existence of secret channels is no longer revealed by
                    519:     using LUSERS. Reported by Cahata, thanks!
                    520:   - Unknown user and channel modes no longer stop the mode parser, but
                    521:     are simply ignored. Therefore modes after the unknown one are now
                    522:     handled. This is how ircd2.10/ircd2.11/ircd-seven behave, at least.
                    523:     Reported by Cahata, thanks!
                    524:   - Implement IRC commands "GLINE" and "KLINE" to ban users. G-Lines are
                    525:     synchronized between server on peering, K-Lines are local only.
                    526:     If you use "*!<user>@<host>" or "*!*@<host>" masks, these connections
                    527:     are blocked even before the user is fully logged in (before PASS,
                    528:     NICK, and USER commands have been processed) and before the child
                    529:     processes for authentication are forked, so resource usage is smaller.
                    530:   - Added doc/Modes.txt: document modes supported by ngIRCd.
                    531:   - Implement user mode "R": indicates that the nickname of this user
                    532:     is "registered". This mode isn't handled by ngIRCd itself, but must
                    533:     be set and unset by IRC services like Anope.
                    534:   - Implement channel mode "R": only registered users (having the user
                    535:     mode "R" set) are allowed to join this channel.
                    536:   - Test suite: bind to loopback (127.0.0.1) interface only.
                    537:   - Handle unknown user and channel modes: these modes are saved and
                    538:     forwarded to other servers, but ignored otherwise.
                    539:   - Handle channel user modes 'a', 'h', and 'q' from remote servers.
                    540:     These channel user modes aren't used for anything at the moment,
                    541:     but ngIRCd knows that these three modes are "channel user modes"
                    542:     and not "channel modes", that is that these modes take an "nickname"
                    543:     argument. Like unknown user and channel modes, these modes are saved
                    544:     and forwarded to other servers, but ignored otherwise.
                    545:
                    546: ngIRCd 18 (2011-07-10)
                    547:
                    548:   - Add preliminary ngIRCd protocol module for Anope 1.9 to contrib/Anope/.
                    549:
                    550:   ngIRCd 18~rc2 (2011-06-29)
                    551:   - GnuTLS: use 1024 bits as minimum size of the DH prime. This enables
                    552:     ngIRCd to accept incoming connections from other servers and clients
                    553:     that "only" use at least 1024 bits again, like ngIRCd 17 did (and no
                    554:     longer requires 2048 bits for incoming connections).
                    555:
                    556:   ngIRCd 18~rc1 (2011-06-27)
                    557:   - New configuration option "MorePrivacy" to "censor" some user information.
                    558:     When enabled, signon time and idle time is left out. Part and quit
                    559:     messages are made to look the same. WHOWAS requests are silently dropped.
                    560:     All of this is useful if one wish to conceal users that access the ngircd
                    561:     servers from TOR or I2P.
                    562:   - New configuration option "ScrubCTCP" to scrub incoming CTCP commands. If
                    563:     activated, the server silently drops incoming CTCP requests from both
                    564:     other servers and from users. The server that scrubs CTCP will not forward
                    565:     the CTCP requests to other servers in the network either, which can spell
                    566:     trouble if not every oper knows about the CTCP-scrubbing. Scrubbing CTCP
                    567:     commands also means that it is not possible to send files between users.
                    568:     There is one exception to the CTCP scrubbing performed: ACTION ("/me
                    569:     commands") requests are not scrubbed.
                    570:   - Restructure ngIRCd configuration file: introduce new [Limits], [Options],
                    571:     and [SSL] sections. The intention of this restructuring is to make the
                    572:     [Global] section much cleaner, so that it only contains variables that
                    573:     most installations must adjust to the local requirements. All the optional
                    574:     variables are moved to [Limits], for configurable limits and timers of
                    575:     ngIRCd, and [Options], for optional features. All SSL-related variables
                    576:     are moved to [SSL] and the "SSL"-prefix is stripped. The old variables in
                    577:     the [Global] section are deprecated now, but are still recognized.
                    578:     => Don't forget to check your configuration, use "ngircd --configtest"!
                    579:   - New documentation "how to contribute": doc/Contributing.txt.
                    580:   - Avoid needlessly scary 'buffer overflow' messages: When the write buffer
                    581:     space grows too large, ngIRCd has to disconnect the client to avoid
                    582:     wasting too much memory, which is logged with a scary 'write buffer
                    583:     overflow' message. Change this to a more descriptive wording.
                    584:   - New configuration option "RequireAuthPing": PING-PONG on login. When
                    585:     enabled, this configuration option lets ngIRCd send a PING with an numeric
                    586:     "token" to clients logging in; and it will not become registered in the
                    587:     network until the client responds with the correct PONG.
                    588:   - New configuration option "NoticeAuth": send NOTICE AUTH on connect. When
                    589:     active, ngircd will send "NOTICE AUTH" messages on client connect time
                    590:     like e.g. snircd (QuakeNet) does.
                    591:   - Add support for up to 3 targets in WHOIS queries, also allow up to one
                    592:     wildcard query from local hosts. Follows ircd 2.10 implementation rather
                    593:     than RFC 2812. At most 10 entries are returned per wildcard expansion.
                    594:   - ngircd.conf(5) manual page: describe types of configuration variables
                    595:     (booleans, text strings, integer numbers) and add type information to each
                    596:     variable description.
                    597:   - Terminate incoming connections on HTTP commands "GET" and "POST".
                    598:   - New configuration option "CloakHost": when set, this host name is used for
                    599:     every client instead of the real DNS host name (or IP address).
                    600:   - New configuration option "CloakUserToNick": when enabled, ngIRCd sets
                    601:     every clients' user name to their nickname and hides the user name
                    602:     supplied by the IRC client.
                    603:   - Make write buffers bigger, but flush early. Before this change, a client
                    604:     got disconnected if the buffer flushing at 4k failed, now regular clients
                    605:     can store up to 32k and servers up 64k even if flushing is not possible at
                    606:     the moment. This enhances reliability on slow links.
                    607:   - Allow "Port = 0" in [Server] blocks. Port number 0 marks remote servers
                    608:     that try to connect to this daemon, but where this daemon never tries to
                    609:     establish a connection on its own: only incoming connections are allowed.
                    610:   - Enable WHOIS command to return information about services.
                    611:   - Implement channel mode 'O': "IRC operators only". This channel mode is
                    612:     used on DALnet (bahamut), for example.
                    613:   - Remove support for ZeroConf/Bonjour/Rendezvous service registration
                    614:     including the "[No]ZeroConf" configuration option.
                    615:   - Deprecate NoXX-Options in ngircd.conf and move new variants into our new
                    616:     [Options] section: 'NoDNS=no' => 'DNS=yes', 'NoIdent=no' => 'Ident=yes',
                    617:     'NoPAM=no' => 'PAM=yes', and 'NoZeroConf=no' => 'ZeroConf=yes' (and
                    618:     vice-versa). The defaults are adjusted accordingly and the old variables
                    619:     in [Global] are still accepted, so there is no functional change.
                    620:
                    621: ngIRCd 17.1 (2010-12-19)
                    622:
                    623:   - Don't log critical (or worse) messages to stderr
                    624:   - Remove "error file" when compiled with debug code enabled
                    625:   - New numeric 329: get channel creation time on "MODE #chan" commands
                    626:
                    627: ngIRCd 17 (2010-11-07)
                    628:
                    629:   - doc: change path names in sample-ngircd.conf depending on sysconfdir
                    630:
                    631:   ngIRCd 17~rc2 (2010-10-25)
                    632:   - Generate ngIRCd version number from GIT tag.
                    633:   - Make source code compatible with ansi2knr again. This allows to compile
                    634:     ngIRCd using a pre-ANSI K&R C compiler again.
                    635:
                    636:   ngIRCd 17~rc1 (2010-10-11)
                    637:   - New configuration option "NoZeroConf" to disable service registration at
                    638:     runtime even if ngIRCd is compiled with support for ZeroConf (e.g. using
                    639:     Howl, Avahi or on Mac OS X).
                    640:   - New configuration option "SyslogFacility" to define the syslog "facility"
                    641:     (the "target"), to which ngIRCd should send its log messages.
                    642:     Possible values are system dependent, but most probably "auth", "daemon",
                    643:     "user" and "local1" through "local7" are possible values; see syslog(3).
                    644:     Default is "local5" for historical reasons.
                    645:   - Dump the "internal server state" (configured servers, established
                    646:     connections and known clients) to the console or syslog when receiving
                    647:     the SIGUSR2 signal and debug mode is enabled.
                    648:   - Enable the daemon to disable and enable "debug mode" on runtime using
                    649:     signal SIGUSR1, when debug code is compiled in, not only on startup
                    650:     using the command line parameters.
                    651:   - Implement user mode "x": host name cloaking (closes: #102).
                    652:   - Change MOTD file handling: ngIRCd now caches the contents of the MOTD
                    653:     file, so the daemon now requires a HUP signal or REHASH command to
                    654:     re-read the MOTD file when its content changed.
                    655:   - Allow IRC ops to change channel modes even without OperServerMode set.
                    656:   - Allow IRC operators to use MODE command on any channel (closes: #100).
                    657:   - New configuration option "NoPAM" to disable PAM.
                    658:   - Implement asynchronous user authentication using PAM, please see the
                    659:     file doc/PAM.txt for details.
                    660:   - Add some documentation for using BOPM with ngIRCd, see doc/Bopm.txt.
                    661:   - Implement user mode "c": receive connect/disconnect NOTICEs. Note that
                    662:     this new mode requires the user to be an IRC operator.
                    663:   - Show SSL status in WHOIS output, numeric 275.
                    664:
                    665: ngIRCd 16 (2010-05-02)
                    666:
                    667:   ngIRCd 16~rc2 (2010-04-25)
                    668:   - Enhance connection statistics counters: display total number of served
                    669:     connections on daemon shutdown and when a new client connects using
                    670:     the new numeric RPL_STATSCONN (250).
                    671:
                    672:   ngIRCd 16~rc1 (2010-03-25)
                    673:   - Implement WEBIRC command used by some Web-IRC frontends. The password
                    674:     required to secure this command must be configured using the new
                    675:     "WebircPassword" variable in the ngircd.conf file.
                    676:   - Remove limit on max number of configured irc operators.
                    677:   - A new channel mode "secure connections only" (+z) has been implemented:
                    678:     Only clients using a SSL encrypted connection to the server are allowed
                    679:     to join such a channel.
                    680:     But please note three things: a) already joined clients are not checked
                    681:     when setting this mode, b) IRC operators are always allowed to join
                    682:     every channel, and c) remote clients using a server not supporting this
                    683:     mode are not checked either and therefore always allowed to join.
                    684:
                    685: ngIRCd 15 (2009-11-07)
                    686:
                    687:   ngIRCd 15~rc1 (2009-10-15)
                    688:   - Do not add default listening port (6667) if SSL ports were specified, so
                    689:     ngIRCd can be configured to only accept SSL-encrypted connections now.
                    690:   - Enable IRC operators to use the IRC command SQUIT (instead of the already
                    691:     implemented but non-standard DISCONNECT command).
                    692:   - New configuration option "AllowRemoteOper" (disabled by default) that
                    693:     enables remote IRC operators to use the IRC commands SQUIT and CONNECT
                    694:     on the local server.
                    695:   - Enforce upper limit on maximum number of handled commands. This implements
                    696:     a throttling scheme: an IRC client can send up to 3 commands or 256 bytes
                    697:     per second before a one second pause is enforced.
                    698:
                    699: ngIRCd 14.1 (2009-05-05)
                    700:
                    701:   - Security: fix remotely triggerable crash in SSL/TLS code.
                    702:   - Debian: build ngircd-full-dbg package.
                    703:   - Allow ping timeout quit messages to show the timeout value.
                    704:
                    705: ngIRCd 14 (2009-04-20)
                    706:
                    707:   ngIRCd 14~rc1 (2009-03-29)
                    708:   - Allow creation of persistent modeless channels.
                    709:   - The INFO command reports the compile time now (if available).
                    710:   - Support individual channel keys for pre-defined channels: introduce
                    711:     new configuration variable "KeyFile" in [Channel] sections in ngircd.conf,
                    712:     here a file can be configured for each pre-defined channel which contains
                    713:     individual channel keys for different users.
                    714:   - Remove limit on maximum number of predefined channels in ngircd.conf.
                    715:
                    716: ngIRCd 13 (2008-12-25)
                    717:
                    718:   ngIRCd 13~rc1 (2008-11-21):
                    719:   - New version number scheme :-)
                    720:   - Initial support for IRC services, using a RFC1459 style interface,
                    721:     tested with IRCServices (http://www.ircservices.za.net/) version 5.1.13.
                    722:     For this to work, ngIRCd now supports server-server links conforming
                    723:     to RFC 1459. New ngircd.conf(5) option: ServiceMask.
                    724:   - Support for SSL-encrypted server-server and client-server links using
                    725:     OpenSSL (configure: --with-openssl) or GNUTLS (configure: --with-gnutls).
                    726:     New ngircd.conf(5) options: SSLPorts, SSLKeyFile, SSLKeyFilePassword,
                    727:     SSLCertFile, SSLDHFile, and SSLConnect.
                    728:   - Server local channels have been implemented, prefix "&", that are only
                    729:     visible to users of the same server and are not visible in the network.
                    730:     In addition ngIRCd creates a "special" channel &SERVER on startup and logs
                    731:     all the messages to it that a user with mode +s receives.
                    732:   - New make target "osxpkg" to build a Mac OS X installer package.
                    733:   - New configuration option "NoIdent" to disable IDENT lookups even if the
                    734:     daemon is compiled with IDENT support.
                    735:
                    736: ngIRCd 0.12.1 (2008-07-09)
                    737:
                    738:   - Add option aliases -V (for --version) and -h (for --help).
                    739:   - Make Listen parameter a comma-separated list of addresses. This also
                    740:     obsoletes ListenIPv4 and ListenIPv6 options. If Listen is unset, it
                    741:     is treated as Listen="::,0.0.0.0".
                    742:     Note: ListenIPv4 and ListenIPv6 options are still recognized,
                    743:     but ngircd will print a warning if they are used in the config file.
                    744:
                    745: ngIRCd 0.12.0 (2008-05-13)
                    746:
                    747:   ngIRCd 0.12.0-pre2 (2008-04-29)
                    748:   - IPv6: Add config options to disable ipv4/ipv6 support.
                    749:
                    750:   ngIRCd 0.12.0-pre1 (2008-04-20)
                    751:   - Add IPv6 support.
                    752:   - Install a LaunchDaemon script to start/stop ngIRCd on Mac OS X.
                    753:   - Implemented IRC commands INFO, SUMMON (dummy), and USERS (dummy) and
                    754:     enhanced test suite to check these commands. (Dana Dahlstrom)
                    755:   - IRC_WHO now supports search patterns and will test this against user
                    756:     nickname/server name/host name, etc. as required by RFC 2812, Section 3.6.1.
                    757:     (reported by Dana Dahlstrom)
                    758:   - Implement RFC 2812 handling of "0" argument to 'JOIN': must be treated
                    759:     as if the user had sent PART commands for all channels the user is a
                    760:     member of. (Dana Dahlstrom)
                    761:   - Allow NOTICEs to be sent to a channel. (Fabian Schlager)
                    762:
                    763: ngIRCd 0.11.0 (2008-01-15)
                    764:
                    765:   - Add support for /STAT u (server uptime) command.
                    766:   - New [Server] configuration Option "Bind" allows to specify
                    767:     the source IP address to use when connecting to remote server.
                    768:   - New configuration option "MaxNickLength" to specify the allowed maximum
                    769:     length of user nicknames. Note: must be unique in an IRC network!
                    770:   - Numeric 317: implemented "signon time" (displayed in WHOIS result).
                    771:   - Added new server configuration option "Passive" for "Server" blocks to
                    772:     disable automatic outgoing connections (similar to -p option to ngircd,
                    773:     but only for the specified server). (Tassilo Schweyer)
                    774:   - Added support for the WALLOPS command. Usage is restricted to IRC
                    775:     operators.
                    776:
                    777: ngIRCd 0.10.2 (2007-06-08)
                    778:
                    779:   - Predefined channel configuration now allows specification of channel key
                    780:     (mode k) and maximum user count (mode l): variables "Key" and "MaxUsers".
                    781:   - When using the epoll() IO interface, compile in the select() interface as
                    782:     well and fall back to it when epoll() isn't available on runtime.
                    783:   - Added support for IO APIs "poll()" and "/dev/poll".
                    784:
                    785: ngIRCd 0.10.1 (2006-12-17)
                    786:
                    787:   - Allow PASS syntax defined in RFC 1459 for server links, too.
                    788:   - New configuration option "PredefChannelsOnly": if set, clients can only
                    789:     join predefined channels.
                    790:
                    791: ngIRCd 0.10.0 (2006-10-01)
                    792:
                    793:   ngIRCd 0.10.0-pre1 (2006-08-02)
                    794:   - Enhanced DIE to accept a single parameter ("comment text") which is sent
                    795:     to all locally connected clients before the server goes down.
                    796:   - JOIN now supports more than one channel key at a time.
                    797:   - Implemented numeric "333": Time and user name who set a channel topic.
                    798:   - Channel topics are no longer limited to 127 characters: now the only limit
                    799:     is the maximum length of an IRC command, i. e. 512 bytes (in practice, this
                    800:     limits the topic to about 490 characters due to protocol overhead).
                    801:   - Reverse DNS lookup code now checks the result by doing an additional
                    802:     lookup to prevent spoofing.
                    803:   - Added new IO layer which (optionally) supports epoll() and kqueue() in
                    804:     addition to the select() interface.
                    805:
                    806: ngIRCd 0.9.0 (2005-07-24)
                    807:
                    808:   - Never run with root privileges but always switch the user ID.
                    809:   - Make "netsplit" messages RFC compliant.
                    810:   - Implemented the IRC function "WHOWAS".
                    811:   - New configuration option "OperServerMode" to enable a workaround needed
                    812:     when running an network with ircd2 servers and "OperCanUseMode" enabled
                    813:     to prevent the ircd2 daemon to drop mode changes of IRC operators.
                    814:     Patch by Florian Westphal, <westphal@foo.fh-furtwangen.de>.
                    815:   - Implemented support for "secret channels" (channel mode "s").
                    816:   - New configuration option "Mask" for [Operator] sections to limit OPER
                    817:     commands to users with a specific IRC mask. Patch from Florian Westphal.
                    818:   - New configuration variable "PidFile", section "[Global]": if defined,
                    819:     the server writes its process ID (PID) to this file. Default: off.
                    820:     Idea of Florian Westphal, <westphal@foo.fh-furtwangen.de>.
                    821:   - Added support for the Howl (http://www.porchdogsoft.com/products/howl/)
                    822:     Rendezvous API, in addition to the API of Apple (Mac OS X). The available
                    823:     API will be autodetected when you call "./configure --with-rendezvous".
                    824:
                    825: ngIRCd 0.8.0 (2004-06-26)
                    826:
                    827:   - Two new configuration options: "ChrootDir" and "MotdPhrase", thanks to
                    828:     Benjamin Pineau <ben@zouh.org>. Now you can force the daemon to change
                    829:     its root and working directory to something "safe". MotdPhrase is used
                    830:     to define an "MOTD string" instead of a whole file, useful if the
                    831:     "real" MOTD file would be outside the "jail".
                    832:   - INVITE- and BAN-lists become synchronized between IRC+ servers when
                    833:     establishing new connections, if the peer supports this as well.
                    834:   - The type of service (TOS) of all sockets is set to "interactive" now.
                    835:   - Added short command line option "-t" as alternative to "--configtest".
                    836:   - Added optional support for "IDENT" lookups on incoming connections. You
                    837:     have to enable this function with the ./configure switch "--with-ident".
                    838:     The default is not to do IDENT lookups.
                    839:
                    840: ngIRCd 0.7.5 (2003-07-11)
                    841:
                    842:   - New configuration variable "MaxConnectionsIP" to limit the number of
                    843:     simultaneous connections from a single IP that the server will accept.
                    844:     This configuration options lowers the risk of denial of service attacks
                    845:     (DoS), the default is 5 connections per client IP.
                    846:   - Added new configuration variable "Listen" to bind all listening
                    847:     sockets of the server to a single IP address.
                    848:
                    849: ngIRCd 0.7.1 (2003-07-18)
                    850:
                    851:   - Added support for GNU/Hurd.
                    852:
                    853: ngIRCd 0.7.0 (2003-05-01)
                    854:
                    855:   - New command CONNECT to enable and add server links. The syntax is not
                    856:     RFC-compatible: use "CONNECT <name> <port>" to enable and connect an
                    857:     configured server and "CONNECT <name> <port> <host> <mypwd> <peerpwd>"
                    858:     to add a new server (ngIRCd tries to connect new servers only once!).
                    859:   - Added DISCONNECT command ("DISCONNECT <name>") to disable servers.
                    860:   - New command TRACE (you can trace only servers at the moment).
                    861:   - New command HELP that lists all understood commands.
                    862:   - ngIRCd can register itself with Rendezvous: to enable support pass the
                    863:     new switch "--with-rendezvous" to configure.
                    864:   - Added support for TCP Wrappers library: pass "--with-tcp-wrappers" to
                    865:     configure to enable it.
                    866:   - Changed some configure options to use "--with"/"--without" as prefix
                    867:     instead of "--enable"/"--disable": "--without-syslog", "--without-zlib",
                    868:     "--with-tcp-wrappers", and "--with-rendezvous".
                    869:   - Enhanced manual pages ngircd(8) and ngircd.conf(5).
                    870:   - Documentation is now installed in $(datadir)/doc/ngircd.
                    871:
                    872:
                    873: Older news (sorry, only available in German language):
                    874:
                    875: ngIRCd 0.6.0, 24.12.2002
                    876:
                    877:   - beim Schliessen einer Verbindung zeigt der Server nun vor dem ERROR
                    878:     noch eine Statistik ueber die empfangene und gesendete Datenmenge an.
                    879:   - Connection-Strukturen werden nun "pool-weise" verwaltet; der Pool wird
                    880:     bei Bedarf bis zu einem konfigurierten Limit vergroessert.
                    881:   - Mit der neuen Konfigurationsvariable "MaxConnections" (Sekion "Global")
                    882:     kann die maximale Anzahl gleichzeitiger Verbindungen begrenzt werden.
                    883:     Der Default ist -1, "unlimitiert".
                    884:   - der Server erkennt nun, ob bereits eine eingehende Verbindung von einem
                    885:     Peer-Server besteht und versucht dann nicht mehr, selber eine eigene
                    886:     ausgehende Verbindung zu diesem auufzubauen. Dadurch kann nun auf beiden
                    887:     Servern in der Konfiguration ein Port fuer den Connect konfiguriert
                    888:     werden (beide Server versuchen sich dann gegenseitig zu connectieren).
                    889:   - Server identifizieren sich nun mit asynchronen Passwoertern, d.h. das
                    890:     Passwort, welches A an B schickt, kann ein anderes sein als das, welches
                    891:     B als Antwort an A sendet. In der Konfig.-Datei, Abschnitt "Server",
                    892:     wurde "Password" dazu durch "MyPassword" und "PeerPassword" ersetzt.
                    893:   - Der Server kann nun zur Laufzeit die Konfiguration neu einlesen: dies
                    894:     macht er nach dem Befehl REHASH oder wenn ein HUP-Signal empfangen wird.
                    895:   - Server-Server-Links koennen nun komprimiert werden, dazu wird die zlib
                    896:     (www.zlib.org) benoetigt. Unterstuetzt die Gegenseite die Komprimierung
                    897:     nicht, wird automatisch unkomprimiert kommuniziert. Das Verfahren ist
                    898:     kompatibel mit dem Original-ircd 2.10.3, d.h. beide Server koennen
                    899:     miteinander ueber komprimiert Links kommunizieren.
                    900:   - neue Konfigurations-Variable "MaxJoins": Hiermit kann die maximale Zahl
                    901:     der Channels, in denen ein User Mitglied sein kann, begrent werden.
                    902:   - neue Channel-Modes l (User-Limit) und k (Channel-Key) implementiert.
                    903:
                    904: ngIRCd 0.5.0, 20.09.2002
                    905:
                    906:   - AIX (3.2.5), HP-UX (10.20), IRIX (6.5), NetBSD (1.5.3/m68k) und Solaris
                    907:     (2.5.1, 2.6) gehoeren nun auch zu den unterstuetzten Platformen.
                    908:   - Unter A/UX (und evtl. weiteren Systemen) kompiliert der ngIRCd nun mit
                    909:     dem "nativen" (ggf. pre-ANSI) Compiler.
                    910:   - "persistente Channels" (Mode 'P') implementiert: diese koennen in der
                    911:     Konfigurationsdatei definiert werden (Sektion "Channel", vgl. Beispiel-
                    912:     Konfiguration "sample-ngircd.conf") und bleiben auch dann bestehen,
                    913:     wenn kein User mehr im Channel ist.
                    914:   - neue IRC-Befehle: KICK, INVITE, ADMIN, CHANINFO; LIST wurde erweitert.
                    915:     Mit dem neuen Befehl CHANINFO synchronisieren Server, die das IRC+-
                    916:     Protokoll unterstuetzen, Channel-Modes und Topics. Fuer den ADMIN-Befehl
                    917:     gibt es neue Konfigurationsoptionen (Sektion "Global"): "AdminInfo1",
                    918:     "AdminInfo2" und "AdminEMail".
                    919:   - Invite- und Ban-Lists implementiert.
                    920:   - neue Konfigurationsoption "OperCanUseMode" (Sektion "Global"):
                    921:     ist sie aktiv, koennen IRC-Operatoren immer Channel-Modes setzen.
                    922:   - "Test-Suite" begonnen: mit "make check" wird sie durchlaufen.
                    923:
                    924: ngIRCd 0.4.2, 29.04.2002
                    925:
                    926:   - IRC-Funktion LIST implementiert; bisher werden allerdings noch keine
                    927:     Regular Expressions (bis auf "*") unterstuetzt.
                    928:
                    929: ngIRCd 0.4.0, 01.04.2002
                    930:
                    931:   - WHO implementiert (bisher ohne komplette Unterstuetzung von Masks).
                    932:   - stderr wird nun in eine Datei umgelenkt (/ngircd-<PID>.err).
                    933:     Laeuft der Server nicht im Debug-Modus, so wird diese bei Programm-
                    934:     ende geloescht. Sollte der Server abstuerzen, finden sich hier evtl.
                    935:     zusaetzliche Informationen.
                    936:   - Server-Gruppen implementiert: es wird immer nur zu einem Server in
                    937:     einer Gruppe eine Verbindung aufgebaut, klappt es beim ersten Server
                    938:     nicht, so wird der naechste probiert.
                    939:   - Clients und Channels werden nicht mehr ueber ihren Namen, sondern
                    940:     einen Hash-Wert gesucht: sollte deutlich schneller sein.
                    941:   - neuer Kommandozeilen-Parameter "--configtest": die Konfiguration wird
                    942:     gelesen und die dann verwendeten Werte angezeigt.
                    943:   - Client-Mode "s" (Server Notices) implementiert.
                    944:   - mit dem neuen Kommandozeilen-Parameter "--config"/"-f" kann eine
                    945:     alternative Konfigurationsdatei angegeben werden.
                    946:   - nach dem Start kann der ngIRCd, wenn er mit root-Rechten laeuft,
                    947:     zu einer anderen User-ID und Group-ID wechseln.
                    948:
                    949: ngIRCd 0.3.0, 02.03.2002
                    950:
                    951:   - bekommt der Server ein HUP-Signal, so startet er neu -- genau so, wie
                    952:     er auf den IRC-Befehl RESTART reagiert.
                    953:   - neuer Kommandozeilen-Schalter "--passive" (-p): wird er angegeben, so
                    954:     verbindet sich der ngIRCd nicht mehr automatisch zu anderen Servern.
                    955:     Zum Debuggen manchmal ganz praktisch :-)
                    956:   - neue Befehle VERSION und KILL implementiert. NAMES korrigiert.
                    957:   - Anpassungen an A/UX: gehoert nun auch zu den unterstuetzten Platformen.
                    958:   - AWAY (und der User-Mode 'a') ist nun implementiert.
                    959:   - der ngIRCd unterstuetzt nun Channel-Topics (TOPIC-Befehl).
                    960:   - Channel- und Nicknames werden nun ordentlich validiert.
                    961:
                    962: ngIRCd 0.2.0, 15.02.2002
                    963:
                    964:   - Begonnen Channel-Modes und User-Channel-Modes zu implementieren: der
                    965:     Server versteht an User-Modes o und v, beachtet letzteres allerdings
                    966:     noch nirgends. Bekannte (aber nicht beachtete!) Channel-Modes sind
                    967:     bisher a, m, n, p, q, s und t. Diese Modes werden von Usern ange-
                    968:     nommen, von anderen Servern werden auch unbekannte Modes uebernommen.
                    969:   - Nach dem Connect eines Users werden LUSERS-Informationen angezeigt.
                    970:
                    971: ngIRCd 0.1.0, 29.01.2002
                    972:
                    973:   - Channels implementiert, bisher jedoch noch ohne Channel-Modes, d.h.
                    974:     es gibt keine Channel-Ops, kein Topic, kein "topic lock" etc. pp.
                    975:     Chatten in Channels ist aber natuerlich moeglich ;-)
                    976:     Dadurch zum Teil groessere Aenderungen an bisherigen Funktionen.
                    977:   - neue Befehle fuer Channles: JOIN, PART und NJOIN.
                    978:   - FAQ.txt in doc/ begonnen.
                    979:
                    980: ngIRCd 0.0.3, 16.01.2002
                    981:
                    982:   - Server-Links vollstaendig implementiert: der ngIRCd kann nun auch
                    983:     "Sub-Server" haben, also sowohl als Leaf-Node als auch Hub in einem
                    984:     IRC-Netzwerk arbeiten.
                    985:   - WHOIS wird nun immer an den "Original-Server" weitergeleitet.
                    986:   - Parser handhabt Leerzeichen zw. Parametern nun etwas "lockerer".
                    987:   - Kommandozeilen-Parser: Debug- und No-Daemon-Modus, Hilfe.
                    988:   - ngIRCd wandelt sich nun in einen Daemon (Hintergrundprozess) um.
                    989:   - neue Befehle: LUSERS, LINKS.
                    990:
                    991: ngIRCd 0.0.2, 06.01.2002
                    992:
                    993:   - neuer Aufbau der Konfigurationsdatei,
                    994:   - mehrere IRC-Operatoren koennen konfiguriert werden,
                    995:   - Server-Links teilweise implementiert. Bisher kann der ngIRCd jedoch
                    996:     nur "leafed server" sein, d.h. keine "Client-Server" haben.
                    997:
                    998: ngIRCd 0.0.1, 31.12.2001
                    999:
                   1000:   - erste oeffentliche Version von ngIRCd als "public preview" :-)

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