NEWS

This is elemental-ircd 7.0-experimental, Copyright (c) 2015 elemental-ircd team.
See LICENSE for licensing details (GPL v2).

elemental-ircd 7.0-experimental
===============================

This release is pre-alpha. It is not intended to be used in production
settings. Please be sure to report strange behavior or bugs.

This is one of the largest releases that we have done. It consists of 469
commits and is still very much in progress. Because this is a major release,
we are taking the opportunity to also start deprecating things or behaviors
that are nonsensical or undesirable.

This is tested and known to be working normally with Atheme services (or a fork)
and optionally Tetra for extended services.

This release is ABI-incompatible with previous releases of elemental-ircd. As
a part of migrating to the new version, please run the following commands in your
ircd prefix before running `make install`:

    #!/bin/sh

    mv modules modules-6.6.2
    mv bin bin-6.6.2
    mv lib lib-6.6.2
    mv help help-6.6.2

And be sure to recompile any custom modules with the new build system:
 - add your file to extensions/m_foo.c
 - add m_foo.la to the list of extensions in extensions/Makefile.am
 - rerun automake, ./configure, make and make install

changes
-------

 - autoconf -> automake [#86]
 - the system's sqlite is now used [bac8187]
 - MODE_NOREPEAT, MODE_NOCAPS, MODE_NONOTICE, MODE_NOCTCP and MODE_NOCOLOR
   are now implemented as modules instead of in the core
   [411c3a3, 0f2ccf4, 9488ed1, 94dee35, dfc854d]
 - many upstream libratbox patches are applied
 - MONITOR is less inconsistent [#151, #157]
 - all SVN revision tags are normalized [8233df0]
 - GPL version 2 text normalized against FSF's copy [70bca7c8]
 - elemental-ircd runs as a shared library
 - many, many coverity fixes
 - a bit of useless code removed

additions
---------

 - channel and private message hooks [5d9cc5c]
 - extension added to block invalid UTF-8 messages from being sent to any
   channel [694c1d8]
 - user mode +W for WEBIRC clients [694c1d8, c910264]
 - user mode-based extban [671c21d]
 - a testing suite (still in development) [#113, #155, etc]
 - SASL EXTERNAL support [788565f]
 - support for Free/OpenBSD
 - theoretically can support windows and Mac OSX (we do not suggest you use
   either to maintain public-facing IRC servers)
 - the beginnings of IRCv3 tagged message support
 - automatic testing via travis on GCC and Clang on Linux and OSX
 - ircv3 away-notify, chghost client capabilities [6bec481, 83e31d1, 58f3d8c,
   e84f541]

removals
--------

 - remove channel mode +D (block /me) [a003556]
 - outdated ircd-hybrid migration tools removed [694c1d8]
 - remove extension module for when you are being WHOIS'd [678ac18]
 - multiple implementations of sprintf removed [#93, #76]
 - old or outdated documentation has been purged

-- elemental-ircd 6.6.2

Fix ban logic

-- elemental-ircd 6.6.1

All code is now in the linux kernel coding style. Patches that do not
follow this coding style are at risk of being rejected. It is suggested
that your editor be set up to automatically style your code in the
desired format. A vim resource file is provided in the repository root.

additions
 - automatic code styling for vim
 - Dockerfile and nightly docker builds
 - show cloaked I:Line vhost IP address remotely

bugfixes
 - all channel lists have their own limit instead of sharing one.
   5ba9c76d224afac877d9500d6ac1eb8f2bddd076
 - fix potential undefined behavior with m_away
   7d3966bc9bd9e9ab7833b4ecb0751671bdd085e7
 - fix Anope 2.0 protocol module
   79a3bf79ae66c43470c4bed25c33053b13a032d1

-- elemental-ircd 6.6

additions
 - add OWNER=y to 005
 - add autoconfigure script like unrealircd
 - add channel mode +u to hide banlists unless users have halfop or up
 - add modules for services packages
 - add quotes around PART reason
 - add umode +I to hide channels line from WHOIS
 - make end-user /OPER failures much more generic
 - make flooding SNOTEs global
 - show own modes in whois
 - show remote server IP addresses
 - update helpfiles to have much more up to date information

bugfixes
 - don't strip unicode in strip_unprintable
 - fix extended-join for remote users
 - fix null reference in away-notify
 - make genssl.sh generate ten year certs
 - merge some upstream charybdis patches

removals
 - remove away-notify
 - remove AHBL from default configs
 - remove m_post SNOTEs because of an upstream change

The official channel for Elemental-IRCd is now #elemental-ircd on
irc.yolo-swag.com.

-- elemental-ircd 6.5.1

Rename to Elemental-IRCd

-- ponychat-ircd 6.5

additions
 - Channel owner mode (+y)
 - away-notify, account-notify and extended-join client capabilities
 - DNSBL hit and m_post HTTP proxy rejection server notices are global
 - IPv6 DNSBL support
 - Away rate limiting added
 - Added snotes for failed SASL authentication attempts if need_sasl flag is set

bugfixes
 - Reject nicks with '~' in them, rather than cutting at the '~'
 - Fix possible memory leak of certificate fingerprints
 - Printed error message on unreadable config file rather than just a log entry

-- ponychat-ircd 6.3.4

bugfixes
- Fix compilation with GCC 4.8 and above

-- shadowircd 6.3.3

bugfixes
- Fix compilation with Glibc-2.16 and newer
- Fix extensions/ip_cloaking not telling linked servers about a changed hostname
- Fix crash when a CAPAB with no parameters is sent
- Fix bugs when shadowircd is run under OpenVZ or Virtuozzo

-- shadowircd 6.3.2.1

bugfixes
- Fix small buildsystem regressions introduced in shadowircd 6.3.2

-- shadowircd 6.3.2

bugfixes
- Fix ACTIONs working on a channel when cmode +G (blockcaps) is set.
other
- Do some things the git was as we've switched to git as our VCS since 6.3.1.
- Add support for proper system-wide installability.
- Add a few simple helper scripts for irssi, WeeChat and XChat to add a /OHELP
  command which makes it far easier to view ShadowIRCd help on clients that use
  /HELP for their own uses.

-- shadowircd 6.3.1

bugfixes
- When setting/unsetting cmode +M, wallops are only sent once, globally, 
  not for every server on the network where the mode change happens.
- Don't allow +Z to be set by default_umodes.
- Cope with OPENSSL_VERSION_NUMBER not being a long. This is the case on
  very new FreeBSD versions.
- Disallow mIRC italics in channel names when disable_fake_channels is in use.
- Allow kick_on_split_riding to protect channels with mlocked keys.

-- shadowircd-6.3.0

new modes
- channelmode 'N' has been moved to 'd' to allow for m_roleplay and
  specifically, compatibility with the charybdis m_roleplay.

new modules
- m_roleplay: New extension allowing many roleplay commands. Individual
  channels can disable this by setting channelmode +N on their channels.

configuration
- use auth::auth_user for SASL. It is no longer usable in PASS (though its
  use-case there is non-existant), but you can now set so if a user
  successfully authenticates to the accountname in auth_user with SASL,
  they will get the proper auth block privs. You can have multiple auth_users
  in one auth block.
- you can now specify a SSL fingerprint that the remote server must have in
  order to link.

opers
- wallops are now sent upon setting or unsetting of +M or any other hidden
  channelmode.
- /LIST now has operspy support. You can see all channels (including secret
  channels) with /LIST ! or /LIST !#target. OLIST still exists and can be
  used as well. OLIST will also show channelmodes whereas LIST will not.

users
- /LIST can now be constrained by topic TS and channel TS.

code
- native support for SHA256, SHA512 and Blowfish added everywhere.
- many small improvements and bugfixes.


-- shadowircd-6.2.0

configuration
- add channel::hide_channel_below_users - Channels with a user count lower
  than the value of this option will not be shown by default in /LIST.
- add channel::admin_on_channel_create - If enabled, gives users creating
  new channels +ao in that channel instead of just +o.
- add channel::disabledmodes - This allows opers to disallow users from
  using certain channelmodes. This is only read on startup and your services
  and remote servers must be configured the same otherwise desyncs will occur.
- add many services aliases for new Atheme services.
opers
- when users get hit by a DNSBL, this is now shown in the snotes.
other
- change kicknorejoin to not be a config option and be hardcoded to 2 seconds
  because a longer time is kind of pointless.
- Many new features and improvements from charybdis 3.3.0. See below for
  information about all that.
code
- many bugfixes and various cleanups.

-- charybdis-3.3.0

server protocol
- Add new BAN command, for propagated network-wide bans (K/X:lines and RESVs).
  These will burst to new servers as they are introduced, and will stay in sync
  across the whole network (new BAN capab).
- Add new MLOCK command, to implement ircd-side channel mode locks. This allows
  services to send out a list of mode letters for a given channel which may not
  be changed, preventing mode fights between services and client bots (new MLOCK
  capab).
user
- New RPL_QUIETLIST(728) and RPL_ENDOFQUIETLIST(729) numerics are used for the
  quiet (+q) list, instead of overloading the ban list numerics.
- Users may no longer change the topic of a -t channel if they cannot send to
  it.
- Add help for EXTBAN, describing the syntax of extended bans in general, as
  well as the most common types.
- Changed AWAY messages are now propagated to other servers. Previously, AWAY
  was only propagated when the user was not already away.
- Channel mode +c (and other places that disallow colour codes) now also strip
  ASCII 29 (mIRC 7 italics).
- Add auto-accept for user mode +g (callerid): Messaging a user while set +g
  will automatically add them to your accept list.
- Add target change for channels.  It applies to unopped, unvoiced and unopered
  users.  This has the effect of stopping spambots which join, message and part
  many channels at a time.
- Show RPL_WHOISLOGGEDIN in /whowas as well as in /whois entries.  This adds at
  most an additional 0.5MB of memory usage.
oper
config
- Add general::use_propagated_bans to switch the new BAN system on or off.
- Add general::default_ident_timeout, to control the timeout for identd (auth)
  connections.
- Add channel::channel_target_change to switch the new channel target change limits
  on or off.
- Fix class::number_per_ident so that it also applies to connections without
  identd.
- Change the example sslport option to 6697, which is more standard than 9999.
misc
- The custom channel mode API has been rewritten, allowing these modules to work
  correctly when reloaded, or loaded from the config file.
- The EFNet RBL is now recommended, instead of DroneBL.
- Remove the unsupported modules directory.
- Numerous bug fixes and code cleanups.
- In mkpasswd, default to MD5 crypt instead of insecure DES.

-- shadowircd-6.1.0

new configuration options
- general::static_quit - Quit message to display for all users (not opers).
- general::no_part_messages - If this option is set to no, the ircd will not
  display PART messages/reasons from users.
- general::true_no_oper_flood - Turns off *ALL* flood protection for opers.
  Instead of command flooding being 4x what it is for a user with no_oper_flood,
  there is no limit at all. This option also allows opers to flood channels/users
  so if you do set it, be extremely careful.
- serverinfo::helpchan and helpurl - These are 2 config options that tell users,
  when they do /quote help (with no extra parameters) the official network help
  channel and a special URL for help. If these options are disabled, the users
  will just get the help index and that's it on /quote help.
- general::default_ident_timeout - Allows you to set the default ident timeout
  in the ircd.conf instead of it being hardcoded and only settable with /SET.

new commands
- CYCLE #channel - server-side CYCLE, also called HOP in some clients/servers.
  Parts the user from the given channel, then joins them to it immediately after.
  Enabled by loading extensions/m_cycle.

opers
- Override no longer alows overriding opers to talk through +q, +m, etc.
  If you need to talk through one of these modes, its recommended to remove
  the offending mode or give yourself voice/ops.
- OLIST now shows channel modes so opers can easily see which channels are
  +s and see which channels have oper-only channel modes set.
- RESTART and DIE now can be executed remotely. See the appropriate helpfiles
  for details.
- All module management commands (MODLOAD, MODLIST, MODUNLOAD, MODRELOAD and
  MODRESTART) can be executed remotely. See the appropriate helpfile for
  details.
- OMODE can now set and unset +ah.
- OJOIN now works with !#channel and %#channel.
- Staff channelmodes (+AO) now require chanops to set.
- OPERHOST option added to SET. You can now use SET to change the default
  operhost that operators get upon opering up, though like the 
  general::default_operhost config option it will not override the 
  operator::vhost config option.

other
- Added a strip_unprintable function to make evasion of cmodes +G and +K
  less trivial.
- Massive helpfile updates.
- Added SVSJOIN s2s command. This allows things like atheme's ns_ajoin
  to work on shadowircd.
- Added BAN stuff (propogated bans on burst) from charybdis trunk. This
  can be disabled and the old behavior can be used by setting the
  general::use_propogated_bans option to no.
- The --enable-small-net configure option is now enabled by default.
  If you wish to disable small net mode, pass --disable-small-net to
  configure.
- New channel mode adding API has been added from charybdis trunk.
- NOTICE/PRIVMSG @#channel and +#channel now go to admin/halfop as well
  as chanop.

-- shadowircd-6.0.0

new modes
- Add umode +C (no CTCP).
- Add umode +V, users with this mode set will never recieve channel invites
  from other users.
- Add umode +B which identifies users as being bots in /whois.
- Add umode +G which disallows users from messaging you unless you're both
  on at least one channel together. This can be "overridden" with /accept.
- Add cmode +T which blocks all notices to the channel.
- Add cmode +D which blocks all actions (/me's) from being sent to the channel.
- Add cmode +E which disallows channel ops from kicking users.
- Add cmode +N which disallows users from changing their nick while they're on
  a channel with this mode set.
- Add cmode +K (norepeat) which will block repeated messages, regardless of
  who they're from.
- Add cmode +G which blocks messages containing 50% or more capital letters
  from being sent to the channel.
- Add cmode +J which disallows a kicked user from rejoining within 'X' seconds
  of them being kicked, where 'X' is the variable of the channel::kick_no_rejoin_time
  configuration option.
- Add cmodes +a and +h (admin and halfop, respectively). There are 2 extra
  prefixes to more finely-grain the status of staff members in your channels.
  They can be enabled or disabled in the configuration file with the options
  channel::use_halfop and channel::use_admin.

new configuration options
- auth::autojoin - This option will specify what channels users in a matching
  auth {} block will automatically join on connect to your server/network.
- auth::autojoin_opers - This option will specify what channels opers in a
  matching auth {} block will automatically join on oper up (/oper).
- channel::cycle_host_change - This option defines whether or not users
  will cycle (part and rejoin) the channels they're in when their host changes.
  This can be annoying to some people, but disabling it can cause client desyncs.
- channel::host_in_topic - This option defines whether or not a host setter's
  full host or just their nick will be shown on /TOPIC.
- channel::use_local_channels - With this option, you can enable/disable
  support for local channels on your server/network.
- channel::exemptchanops - This option defines what channel modes channel
  operators are exempt from, channel modes usable in this option are: cCDTNGK.
- general::secret_channels_in_whois - This option defines whether or not opers
  can see secret channels that a user is in when whoising them. Secret channels
  will show up in the whois prefixed with *. If this option is disabled, opers
  will still be able to see secret channels a user is in with the /SPYWHOIS 
  command.
- Enabled a few popular extensions by default, added a few extensions to the
  example config files that were missing, add a few more services aliases
  by default, enable ip_cloaking by default and get rid of all the old
  ip_cloaking modules.

opers
- Users' umodes are shown when you whois them.
- swhois support - Adds a mostly free-form line of text to opers' whois
  if one is set in their operator {} block.
- custom operstring - Instead of showing the IRC operator or IRC administrator
  oper strings, you can customize what it shows in each oper's operator {}
  block.
- host-on-oper - Give a vhost to operators upon oper up. Can be defined
  generally, then the general option may be overridden by each operator {}
  block.
- operoverride - Oper override works very differently in ShadowIRCd compared
  to all other IRCd's which support oper override. In ShadowIRCd, to be able
  to override, you must have the oper:override privledge and you must then
  set umode +p on yourself. The p umode will automatically expire and un-set
  itself after a time set in the configuration option general::expire_override_time.
- immune - Adds cmode +M. Opers can set this on a channel (even if they don't 
  have ops) without the channel's ops or other users seeing (only opers see 
  this mode at all.) It disallows anyone in the channel from kicking opers.
- OACCEPT/callerid override - In ShadowIRCd 6, opers no longer can simply PM
  users that have umodes +g or +G set and the oper is not on their accept list.
  To allow opers to still be able to PM users in this situation, OACCEPT has been
  added. OACCEPT is a new extension that enables the command /oaccept <user> 
  which adds a piece of metadata to that use which will allow you to PM them.

other
- Changed default NICKLEN to 31 (from 15) to fit more closely with other
  IRCd's.
- Rebrand many things from Charybdis to ShadowIRCd.
- Move the m_force module to extensions.
- Add a metadata framework. Currently used for swhois, custom operstring, 
  OACCEPT, cmode +J, cmode +K.

-- charybdis-3.2.0

server protocol
- Apply +z to messages blocked by +b and +q as well. (new EOPMOD capab)
- Add new topic command ETB, allowing services to set topic+setter+ts always.
  (new EOPMOD capab)
- The slash ('/') character is now allowed in spoofs.
user
- Add can_kick hook, based on the ircd-seven one.
- Add cmode +C (no CTCP) from ircd-seven.
- Flood checking has been reworked.
- Fix op-moderate (cmode +z) for channel names with '@'.
- Add CERTFP support, allowing users to connect with an SSL client
  certificate and propagating the certificate fingerprint to other servers.
  Services packages can use this to identify users based on client
  certificates.
- Maintain the list of recently used targets (for the target change
  anti-spam system) in most-recently-used order, overwriting the least
  recently used target with a new one. This should be friendlier to users
  without giving spambots anything.
- Do not require target change slots for replying to the last five users to
  send a private message, notice or invite.
- Apply target change restrictions to /invite.
- Apply umode +g/+R restrictions to /invite, with the difference that
  instead of sending "<user> is messaging you" the invite is let through
  since that is just as noisy.
oper
- Add /rehash throttles to clear throttling.
- Send all server notices resulting from a remote /rehash to the oper.
- '\s' for space is now part of the matching, not a substitution at xline
  time, fixing various issues with it.
- Display o:line "nickname" in oper-up server notices.
- Fix sendq exceeded snotes for servers.
- SCAN UMODES: default list-max to 500, like a global WHO.
- Ignore directory names in MODRELOAD to avoid crashing if it is a core
  module and the path is incorrect.
- Tweaks to spambot checks.
config
- Add channel::only_ascii_channels config option to restrict channel names
  to printable ascii only.
- Add channel::resv_forcepart, forcibly parts local users on channel RESV,
  default enabled.
misc
- New mkpasswd from ircd-ratbox.
- Check more system calls for errors and handle the errors.
- Various ssld/libratbox bugfixes from ircd-ratbox. [some MERGED]
- Fix fd passing on FreeBSD/amd64 and possibly Solaris/sparc. [MERGED]
- Various documentation improvements. [some MERGED]
- Fix some crash issues. [MERGED]
- Add bandb from ircd-ratbox, which stores permanent dlines/klines/xlines/resvs
  in an sqlite database instead of a flatfile and does the storage in a
  helper process.

-- charybdis-3.1.0

- Remove TS5 support. No TS5 servers are permitted in a network with
  charybdis 3.1.0 or newer, except jupes.
- Replace oper flags by privilege sets (privsets). This adds an extra
  level of indirection between oper flags and operator blocks. /stats O
  (capital O) shows the configured privsets.
- Update libratbox and ssld from upstream and use it better.
- Add auth_user to auth{}. This allows specifying a username:password instead
  of just a password in PASS, so that a fixed user@host is not necessary
  for a specific auth{} block.
- Add need_ssl to auth{} and operator{}. This makes these blocks reject
  the user if not connected via SSL.
- Allow modules to provide simple channel modes without parameter.
- Remove restrictions on CNAME in the resolver.
- Make the resolver remember nonresponsive nameservers.
- Move nick collision notices from +s to +k.
- Add additional information to various server notices about server
  connections.
- Show throttle information in /stats t.
- Show rejectcache and throttle information in /testline.
- Show oper reason in /testline.
- Allow opers to see other users' umodes with /mode <nick>.
- SCAN UMODES GLOBAL NO-LIST MASK <mask> is no longer an operspy command.
- Also apply floodcount to messages to remote clients (except services).
- Remove user@server messages to local users. Sending such messages to
  remote servers is still possible, for securely messaging pseudoservers
  whether service{}'ed or not. The special oper-only syntax opers@server
  remains as well.
- Allow /list on a named +p channel. A full /list already included +p channels.
- Add operspy /topic.
- For remote rehashes, send error messages to the requesting oper as well.
- Disable autoconnect for a server with excessive TS delta.
- Disallow invites to juped channels.
- Warn about certain duplicate and redundant auth blocks.
- Make PRIVMSG/NOTICE behave as CPRIVMSG/CNOTICE automatically if possible.
- Allow +z messages from outside if a channel is -n.
- Allow coloured part reasons in -c channels.
- Add ircu-like WHOX support. This allows requesting specific information
  in /who and allows obtaining services login name for all users in a
  channel. XChat/Conspire use WHOX to update away status more efficiently.
- Allow opers and shide_exempt users to see hopcounts even if flatten_links
  is on.
- Rework ip_cloaking.
- Add the IP address to userlog, as in ircd-ratbox 3.0.
- Split cidr_bitlen into cidr_ipv4_bitlen and cidr_ipv6_bitlen.
- Allow using ziplinks with SSL connections. This is not as efficient as
  using OpenSSL's built in compression, but also works with older versions
  of OpenSSL.
- Fix an off by one error with zipstats processing, which could overwrite
  a variable with NULL causing a crash on some systems.
- Document some extensions in charybdis-oper-guide.
- Add more server protocol documentation.
- Add m_sendbans extension, SENDBANS command to propagate xlines and resvs
  manually.
- Add chm_sslonly extension, cmode +S for SSL/TLS only channels.
- Add chm_operonly extension, cmode +O for IRCop only channels.
- Add chm_adminonly extension, cmode +A for server admin only channels.
- Various code cleanups.

-- charybdis-3.0.4

- Fix a crash on certain recent versions of Ubuntu.
- Allow 127.x.y.z for DNSBL replies instead of just 127.0.0.x.
- Various documentation improvements.

-- charybdis-3.0.3

- Fix IPv6 D:lines
- Fix rejectcache and unknown_count.
- Fix genssl.sh.
- Fix ident for SSL/TLS connections.
- Fix SSL/TLS bugs for servers with more than about 100 connections.
- Small bugfixes.

-- charybdis-3.0.2

- Improve OLIST extension error messages.
- Improve some kline error checking.
- Avoid timing out clients if we are still waiting for a DNSBL lookup.
- Fix resolver hangs with epoll.
- Fix compilation without zlib.

-- charybdis-3.0.1

- Fix occasional hung clients with kqueue.
- Fix a rare ssld crash.
- Fix a bug that could cause incorrect connect failure reasons to be
  reported.
- Make the IRCd work on MacOS X again.

-- charybdis-3.0.0

- Port the IRCd to libratbox, which has improved our portability and allows
  us to reuse low-level code instead of maintaining our own.
- Change configuration of maximum number of clients to ircd-ratbox 3 way.
- Add adminwall from ircd-ratbox, as an extension.
- Add client and server-to-server SSL, read example.conf for setup.
- Replace servlink with ssld (also for ziplinks).
- A new extban, $z, has been added for ssl users (extensions/extb_ssl.so).
- A new compatibility channel mode, +R, has been added, it sets
  +q/-q $~a (extensions/chm_operonly_compat.so). This is similar to
  the +R seen in ircd-seven.
- A new compatibility channel mode, +S, has been added, it sets
  +b/-b $~z (extensions/chm_sslonly_compat.so).
- A new compatibility channel mode, +O, has been added, it sets
  +iI/-iI $o (extensions/chm_operonly_compat.so).
- Add remote D:lines. Note that these are not enabled by default.
- Remove EFnet-style G:lines. Noone appears to use these.
- Remove idle time checking (auto disconnecting users idle too long).
- Display a notice to clients when the IRCd is shut down using SIGTERM.
- Some error messages have been clarified to enhance usability.
- Close the link to servers that send invalid nicks (e.g. nicklen mismatches).
  Formerly the users were killed from the network.
- Enable topicburst by default in connect{}.
- Fix a potential desync which can happen with oper override.
- Remove "deopped" flag (TS5 legacy).
- Use 127.0.0.1 as nameserver if none can be found in /etc/resolv.conf.
- Only accept 127.0.0.x as a dnsbl listing.
- Change cloaking module (same as 2.2.1, different from 2.2.0).
- Make some more server notices about failed remote connect attempts
  network wide.
- Make some server notices about flooders and TS delta network wide.
- Remove redundant "<server> had been connected for <time>" server notice.
- Add resv oper privilege to control /resv, /unresv and cmode +L and +P,
  enabled by default.
- Add mass_notice oper privilege to control global notices and /wallops,
  enabled by default.
- Rework unkline/undline/unxline/unresv so they show the exact item removed
  and do not rehash bans.
- Show opers a list of recently (<24hrs) split servers in /map.
- Add /privs command, shows effective privileges of a client.

-- charybdis-2.2.0

- The I/O code has been reworked, file descriptor metadata is stored in a
  hashtable and the maximum number of clients can now be set in ircd.conf.
- Improve error checking and error messages for kline/dline/xline/resv files.
- Allow kline ipv6:address, unkline some.host and unkline ipv6:address
  without *@.
- Add accountability (wallops, log) to OKICK extension.
- Add opernick to OPME/OMODE/OJOIN log messages.
- Add use_forward option, allows disabling cmode +fFQ and umode +Q.
- Add keyword substitution to DNSBL reasons, making it possible to show
  things like the user's IP address in the reason.
- Use sendto_one_notice() more.
- Server notices about kills now include the victim's nick!user@host instead
  of just nick.
- Include real hostname in Closing Link message for unknown connections
  that have sent USER, in particular banned users.
- Add some documentation about the SASL client protocol.
- Change spambot, flooder and jupe joiner notices from host to orighost.
- Remove the last remains of server hostmasking (this made it possible to
  have multiple servers with similar names appear as a single server).
- Keep bitmasks of modularized umodes reserved forever to the letter,
  avoiding problems when reloading umode modules in a different order.
- Fix -logfile.
- Update to the new revision (v8) of the TS6 spec, this fixes problems with
  joins reversing certain mode changes crossing them. This interoperates
  with older versions.
- Put "End of Channel Quiet List" at the end of +q lists.
- Fix invisible count getting desynched from reality if the act of opering
  up sets -i or +i.
- Don't leak auth{} spoofed IP addresses in +f notices.
- Shorten quit/part/kick reasons to avoid quit reasons overflowing the
  client exiting server notice (from TOPICLEN to 260).
- Fix some cases where 10 char usernames lose their final character.
- Move username check after xline and dnsbl checks, so it will not complain
  to opers about clients who are xlined or blacklisted anyway (both of
  which silently reject).
- Remove invite_ops_only config option, forcing it to YES.
- Allow /invite (but not invex) to override +r, +l, +j in addition to +i.
- Add several new extensions, such as createoperonly.
- Merge whois notice extensions into one and move it from snomask +y to +W.

-- charybdis-2.1.2

- Fix bug that could cause all hostmangled users to be exempted when a
  single ban exception existed on a channel.
- Tweak \s code a little.
- Add a minor clarification to the SGML docs.
- Avoid truncation in ip_cloaking (by removing components on the other side).
  Note that this may cause channel +bqeI modes set on such very long hosts
  to no longer match.

-- charybdis-2.1.1

- Search the shortest list (user's/channel's) when looking up channel
  memberships.
- Make the SID-collision notice look right under all conditions.
- Move kills from services from +s to +k snomask.
- When no_tilde is present on an auth{} block, check the non-tilde version
  of the user@host against k:lines as well.
- Put full reason in the SQUIT reason when a server is rejected for
  insufficient parameters being passed to a command.
- Don't redirect users to an existing domain, irc.fi.
- Improve communication of servlink-related error messages.

-- charybdis-2.1.0

- Our official website is now http://www.ircd-charybdis.org/.
- Make RPL_ISUPPORT (005 numeric) modularizable.
- Also do forwarding if the channel limit (+l) is exceeded.
- Don't count opers on service{} servers in /lusers.
- Allow servers to send to @#chan and +#chan.
- Allow +S clients (services) to send to channels and @/+ channels always.
- Allow normal match() on IP address also in /masktrace.
- Add new testmask from ratbox 2.2. Allows matches on nick, ip and gecos
  in addition to user and host, and is fully analogous to masktrace.
  The numeric has changed from 724 to 727 and fields in it have changed.
- Show IP addresses to opers in /whowas.
- Add extb_extgecos extban option ($x:nick!user@host#gecos), from sorcery
  modules.
- Add extb_canjoin extban option ($j:#channel), matches if the user is banned
  from the other channel.
- Allow opers to /who based on realhost.
- Allow opers to /masktrace, /testmask based on realhost.
- Add general::operspy_dont_care_user_info, limits operspy accountability to
  channel-related information.
- Make host mangling more reliable.
- Prevent ban evasion by enabling/disabling host mangling.
- Add EUID, sends real host and services account in the same command as other
  user information.
- Make it possible to send CHGHOST without ENCAP (fixes problems with old
  services).
- Allow service{} servers to manipulate the nick delay table (for "nickserv
  enforcement", aka SVSHOLD).
- Send server notices about connections initiated by remote opers network wide.
- Fix too early truncation of JOIN channel list.
- Make the newconf system available to modules.
- Add /stats s to the hurt module to list active hurts.
- Add general::servicestring, shown in /whois for opered services (+oS).
- Show real host/IP behind dynamic spoof in /whois to the user themselves
  and opers.
- Document option to disable nick delay.
- Improve logging of server connections.
- Clean up handling of hostnames in connect blocks.
- Remove support for resolving ip6.int, people should be using ip6.arpa.
- Unbreak --disable-balloc (useful for debugging with tools like valgrind).
- Make Solaris 10 I/O ports code compile.
- Add WEBIRC module to allow showing the real host/IP of CGI:IRC users.
- Comment out blacklist{} block in example confs, as AHBL requires
  notification before use.
- Fix some bugs relating to the resolver.

-- charybdis-2.0.0

- Replace ADNS with a new smaller resolver from ircu and hybrid.
- Make services shortcuts (/chanserv etc) configurable in ircd.conf.
- Add extban: extensible +bqeI matching via modules. Syntax is
  $<type>[:<data>]. By default no modules are loaded.
- Add DNS blacklist checking.
- Change operator{} block user@host from host to orighost. This means that
  services/+h spoofs do not work in operator{} blocks; auth{} spoofs still
  work. Check your operator{} blocks!
- Split contrib/ into extensions/ and unsupported/.
- Change CHGHOST do show the change to all other clients on common channels
  with quit/join/mode.
- Add /rehash nickdelay to clear out the nickdelay tables.
- Glines are now disabled in the example confs.
- Show more error messages on stderr.
- Add OMODE command to extensions/ for easier oper mode hacking.
- Add HURT system to extensions/; this shuns clients matching certain host/ip
  unless and until they identify to services. Mainly intended for SorceryNet.
- Show SASL success and failure counts in /stats t.
- Allow more frequent autoconnects to servers.
- Messaging services by nickname no longer uses target change slots.
- Only accept SASL from servers in a service{} block.
- New auth{} flag need_sasl to reject users who haven't done SASL
  authentication.
- Expand blah.blah and blah:blah to *!*@... instead of ...!*@* for bans
- Don't allow opers to fake locops/operwall to +w.
- Documentation updates.
- Many bugfixes.

-- charybdis-1.1.0

- Implement SAFELIST.
- Incorporate ircu's match() algorithm.
- Improve usermode modularization.
- Seperate server notices into a seperate snomask, freeing up many
  usermodes to be used.
- Add support for SIGNON originating from Hyperion2.
- Modularize many server notices into seperate modules.
- Add hooks for can_join and can_create_channel.
- Add support for SASL authentication.
- Add introduce_user hook for adding new messages when a user is bursted.
- Move a large part of the ircd into libcharybdis.
- Don't complain "unknown user mode" if a user tries to unset
  a mode they do not have access to.
- Update our challenge specification to the challenge implementation in
  ratbox 2.2 for interoperability.
- Make +f notices network-wide (local host, global host,
  global user@host, local class), other notices tied to +f remain local.
- Allow ENCAP REALHOST outside of netburst.
- Add general::global_snotices option to make server notices be
  network-wide or not.
- Add sno_farconnect.c to contrib, provides farconnect support.
  Could be useful for BOPM.
- Add sno_routing.c which displays information about netsplits, netjoins
  and the clients affected by them.
- Add CHANTRACE and TRACEMASK commands from ratbox 3.0
- Use IsOperAdmin() instead of IsAdmin() when sending admin-only messages,
  that way hidden admins get them too.
- Add m_error to core_module_table, somehow it was missing.
- Correct a format string bug that occurs when a read error is
  received.
- Add some logging in places where we drop servers and only notify
  server operators.
- Track hostmask limits based on a client's original host, if
  available.
- Move HIDE_SPOOF_IPS into the general {} block in ircd.conf

-- charybdis-1.0.3

- Fix /invite UID leak. (Found by logiclrd@EFnet.)
- Incorporate ratbox bugfixes for the MONITOR system.
- Made show_ip() less braindead.
- Show real errno if we fail to connect to a server.
- Don't disclose server IP's when a connection fails.
- Do not show the channels a service is sitting in.
- Reverted the aline code from hybrid-7.2
- Make sure TS6 services are recognized properly if connected remotely.
- Tweak something in services support for cyrix boxes.

-- charybdis-1.0.2

- Fix propagation of an empty SJOIN (permanant channels).
- Fix an exploit involving a malformed /trace request.
- Don't display a blank RPL_WHOISCHANNELS in a remote whois request.
- Allow modules to provide new usermodes.
- On a nickname collision, change the collided nick to their unique ID,
  if general::collision_fnc is enabled in the config.
- Don't allow UID lookups in /monitor + and /monitor s
- Fix a garbage issue with channel mode +j.
- Apply proper capability flags to the proper server in me_gcap().
- Use find_named_person() instead of find_person() in a nick collision.
- Prevent UID disclosure in cmode setting.
- Prevent UID disclosure to remote clients in /kick.
- Do not allow users to query via /whois <server> <UID>.
- Don't allow local users to use UID's in local usermode changes.
- Propagate +q lists on netjunction.
- Clear +q lists on a lowerTS SJOIN.
- Ported a generic k/d/x-line parser from hybrid-7.2 which resulted in
  duplicate code reduction.
- Fix linebuf raw code to not truncate lines longer than 512 bytes;
  improves ziplink reliability on net junction.
- Use find_named_person() vs find_person() in services alias code.
- Fix issue where channel forwarding token can be lost on net junction.
- Fix empty channel desync issues involving +P.
- Remove unused non-ENCAP CHGHOST support.
- Use TS6 form for SQUIT wallops.
- Propagate nickname changes for remote clients in TS6 form if possible,
  even if sent in TS5 format.
- Only clear oper_only_umodes for local clients on deoper.

-- charybdis-1.0.1

- Display logged in status on non-local clients too.
- Documentation updates
- Fix a bug with forward target authorization.
- Fix a bug with mode propagation (+Q/+F).
- Change ERR_NOSUCHNICK to ERR_SERVICESOFFLINE in services aliases.
- Add remote rehashing.
- Document service { } blocks (u:lines on ircu).
- Document identify_service and identify_command in reference.conf.

-- charybdis-1.0
- Implement channel mode +L for channel list limit exemptions.
- Implement channel mode +P primarily as a status mode, permanant 
  channel -- this is usually enforced via services registrations.
- Change behaviour of /stats p: now displays all staff members instead
  of local ones only.
- Make oper_list global, add local_oper_list for local traffic.
- Strip control codes from parts and quits.
- Add channel mode +c which strips control codes from messages sent to
  the channel.
- Add channel mode +g which enables free use of the /invite command.
- Add channel mode +z which sends rejected messages to channel ops.
  Could be useful for Q&A sessions or other similar events.
- Add channel quietmasks. These are recommended over the use of channel
  bans used to remove a user's ability to participate in the channel.
- Add channel join throttling mode, +j. Used to throttle channel join
  traffic, i.e. join/part flood attacks. Syntax: +j <joins>:<timeslice>
- Improvements to channel_modes(), from shadowircd -- allows for
  better construction of the mode string.
- Use the undernet throttle notice instead of bancache message when
  dealing with rejected clients. (stolen from ircu2.10.12)
- Add channel forwarding, via channel mode +f, behaves similarly to
  dancer-ircd version.
- Update example.conf to reflect AthemeNET changes. Original ratbox
  config is now reference.conf.
- Services account names are now tracked globally.
- Add channel mode +Q which disables the effects of channel forwarding
  on a temporary basis.
- Add channel mode +F which allows anybody to disable forwarding target
  authorisation, voluntarily on their channels.
- Make wallops behave like normal wallops.
- Add services aliases: /ns, /cs, /os, /nickserv, /chanserv, /operserv.
- Add simple hack that enables use of server password for automatic
  identify.

-- ircd-ratbox-2.1.5+datadrain
- fix a buffer overflow and an unterminated buffer when TS6 forces us
  to remove bans
- fix potential junk SJOIN generation when splitting it into multiple
  lines
- make servlink check for an uncompressed ERROR
- change NICKLEN to 15.
- change TOPICLEN to 390.
- force services extensions to be enabled always
- change patchlevel.h to get it's information from 'configure'
- add m_chghost.c, ghetto rigged hostcloaking module, using elite ENCAP
  technique

-- ircd-ratbox-2.1.4
- fix minor time bug which occurs on december 31st
- dont drop a servers link when we get a malformed WHOIS
- disallow commas in channel keys
- fix compile problem with abort_list
- fix build on darwin
- fix compilation with gcc4
- userhost was only allowing 4 targets instead of 5
- invalidate channel ban cache on nickchange
- add TARGMAX to 005, detailing maximum targets for messages
- fix counting of clients on accept list when adding users
- use ID instead of name when bursting SJOIN to TS6 servers
- lower id in struct User, which was one byte bigger than it needs to be

-- ircd-ratbox-2.1.3
- removed sendq_eob as it just doesnt work on efnet
- dont allow MONITOR from an unregistered client
- add some uniqueness into the auth process for bopm
- fix resvs to check whether target server is us properly
- fix a core in cidr channel ban matching
- raise max temptime to a year
- fix cores when we receive extra params to NICK/UID
- remove no_oper_resvs, add resv_exempt auth flag
- fix flattened links
- clean up the accept code, and dont clear a users own list of accepted
  clients on nickchange
- non-efnet:
  - make services {}; blocks be displayed on stats U
  - make services {}; blocks apply on rehash, you must now have only ONE
    service {}; block, but you may have multiple name=""; entries within.
  - only show services logged in info for local clients

-- ircd-ratbox-2.1.2
- fix missing end comment tag in example confs
- fix display problem with unauthorised conn notice
- remove some unused defines from INFO
- fix tabs for spaces in some helpfiles
- add in missing links_delay conf option
- fix cores under amd64
- disallow bans beginning with ':' over BMASK
- disallow bans with a space in chm_ban()
- stop counting hidden opers in stats p count output
- match() params of remote unresv were inverted, causing it to never match
- fix possibility of clients setting blank keys
- fix UID problems with trace
- raise default topiclen to 160
- add in forced nick change for ratbox-services, when compiled with
  --enable-services

-- ircd-ratbox-2.1.1
- remove an 005 token to hack around the parser bug
- exempt users messaging themselves from target change
- disallow messaging towards UIDs
- add in doc/tgchange.txt
- move stats L back to RPL_STATSLINKINFO
- fix some minor auth problems
- properly store ipv6 ips when we're compiled for v4 only
- fix propagation of xline/resv
- sync remote kline reasons with form used for local klines

-- ircd-ratbox-2.1.0
- no changes

-- ircd-ratbox-2.1.0beta2
- fix a few compile warnings
- added multi-prefix clicap, for showing "@+" in NAMES/WHO replies
- remove split_delay, make split servers now work on how many servers have
  issued EOB, rather than how many exist.
- server-side notify lists.  See doc/monitor.txt
- fix undline core
- remove an unwanted space from beginning of second 005
- fix a potential core with the patricia when removing classes
- when we're handling global NAMES, dont output channels whose users are all
  invisible

-- ircd-ratbox-2.1.0beta1
- No release notes, see doc/whats-new-2.1.txt

--------------------------------------------------------------------------------

BUGS: Major bugs in this release are listed in BUGS

BUG REPORTS: If you run this code and encounter problems, you must report
via IRC to irc.atheme.org, #charybdis. For specific bugs you can use
http://bugs-meta.atheme.org/ (Charybdis project).

Please include a gdb backtrace and keep the core file, binaries and 
modules in case the developers need them.

Other files recommended for reading: BUGS, README.FIRST, INSTALL