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A modern IRC server (daemon/ircd) written in Go.

v2.13.0

3 months ago

We're pleased to be publishing v2.13.0, a new stable release. This is a bugfix release that fixes some issues, including a crash.

This release includes no changes to the config file format or database format.

Many thanks to @dallemon, @jwheare, @Mikaela, @nealey, and @Sheikah45 for contributing patches, reporting issues, and helping test.

Fixed

  • Fixed a (hopefully rare) crash when persisting always-on client statuses (#2113, #2117, thanks @Sheikah45!)
  • Fixed not being able to message channels with / (or the configured RELAYMSG separator) in their names (#2114, thanks @Mikaela!)
  • Verification emails now always include a Message-ID header, improving compatibility with Gmail (#2108, #2110)
  • Improved human-readable description of REDACT_FORBIDDEN (#2101, thanks @jwheare!)

Removed

  • Removed numerics associated with the retired ACC spec (#2109, #2111, thanks @jwheare!)

Internal

  • Upgraded the Docker base image from Alpine 3.13 to 3.19. The resulting images are incompatible with Docker 19.x and lower (all currently non-EOL Docker versions should be supported). (#2103)
  • Official release builds use Go 1.21.6

v2.13.0-rc1

4 months ago

We're pleased to be publishing the release candidate for v2.13.0 (the official release should follow within a week or so). This is a bugfix release that fixes some issues, including a crash.

This release includes no changes to the config file format or database format.

Many thanks to @dallemon, @jwheare, @Mikaela, and @Sheikah45 for contributing patches, reporting issues, and helping test.

Fixed

  • Fixed a (hopefully rare) crash when persisting always-on client statuses (#2113, #2117, thanks @Sheikah45!)
  • Fixed not being able to message channels with / (or the configured RELAYMSG separator) in their names (#2114, thanks @Mikaela!)
  • Verification emails now always include a Message-ID header, improving compatibility with Gmail (#2108, #2110)
  • Improved human-readable description of REDACT_FORBIDDEN (#2101, thanks @jwheare!)

Removed

  • Removed numerics associated with the retired ACC spec (#2109, #2111, thanks @jwheare!)

Internal

  • Upgraded the Docker base image from Alpine 3.13 to 3.19. The resulting images are incompatible with Docker 19.x and lower (all currently non-EOL Docker versions should be supported). (#2103)
  • Official release builds use Go 1.21.5

v2.12.0

6 months ago

We're pleased to be publishing v2.12.0, a new stable release. This is another bugfix release aimed at improving client compatibility and keeping up with the IRCv3 specification process.

This release includes changes to the config file format, one of which is a compatibility break: if you were using accounts.email-verification.blacklist-regexes, you can restore the previous functionality by renaming blacklist-regexes to address-blacklist and setting the additional key address-blacklist-syntax: regex. See default.yaml for an example; for more details, see the "Changed" section below.

This release includes a database change. If you have datastore.autoupgrade set to true in your configuration, it will be automatically applied when you restart Ergo. Otherwise, you can update the database manually by running ergo upgradedb (see the manual for complete instructions).

Many thanks to @adsr, @avollmerhaus, @csmith, @EchedeyLR, @emersion, @eskimo, @julio-b, knolle, @KoxSosen, @Mikaela, @mogad0n, and @progval for contributing patches, reporting issues, and helping test.

Config changes

  • Removed accounts.email-verification.blacklist-regexes in favor of address-blacklist, address-blacklist-syntax, and address-blacklist-file. See the "Changed" section below for the semantics of these new keys. (#1997, #2088)
  • Added implicit-tls (TLS from the first byte) support for MTAs (#2048, #2049, thanks @EchedeyLR!)

Fixed

  • Fixed an edge case under allow-truncation: true (the recommended default is false) where Ergo could truncate a message in the middle of a UTF-8 codepoint (#2074)
  • Fixed CHATHISTORY TARGETS being sent in a batch even without negotiation of the batch capability (#2066, thanks @julio-b!)
  • Errors from /REHASH are now properly sanitized before being sent to the user, fixing an edge case where they would be dropped (#2031, thanks @eskimo!
  • Fixed some edge cases in auto-away aggregation (#2044)
  • Fixed a FAIL code sent by draft/account-registration (#2092, thanks @progval!)
  • Fixed a socket leak in the ident client (default/recommended configurations of Ergo disable ident and are not affected by this issue) (#2089)

Changed

  • Bouncer reattach from an "insecure" session is no longer disallowed. We continue to recommend that operators preemptively disable all insecure transports, such as plaintext listeners (#2013)
  • Email addresses are now converted to lowercase before checking them against the blacklist (#1997, #2088)
  • The default syntax for the email address blacklist is now "glob" (expressions with * and ? as wildcard characters), as opposed to the full Go regular expression syntax. To enable full regular expression syntax, set address-blacklist-syntax: regex.
  • Due to line length limitations, some capabilities are now hidden from clients that only support version 301 CAP negotiation. To the best of our knowledge, all clients that support these capabilities also support version 302 CAP negotiation, rendering this moot (#2068)
  • The default/recommended configuration now advertises the SCRAM-SHA-256 SASL method. We still do not recommend using this method in production. (#2032)
  • Improved KILL messages (#2053, #2041, thanks @mogad0n!)

Added

Internal

  • Release builds are now statically linked by default. This should not affect normal chat operations, but may disrupt attempts to connect to external services (e.g. MTAs) that are configured using a hostname that relies on libc's name resolution behavior. To restore the old behavior, build from source with CGO_ENABLED=1. (#2023)
  • Upgraded to Go 1.21 (#2045, #2084); official release builds use Go 1.21.3, which includes a fix for CVE-2023-44487
  • The default make target is now build (which builds an ergo binary in the working directory) instead of install (which builds and installs an ergo binary to ${GOPATH}/bin/ergo). Take note if building from source, or testing Ergo in development! (#2047)
  • make irctest now depends on make install, in an attempt to ensure that irctest runs against the intended development version of Ergo (#2047)

v2.12.0-rc1

7 months ago

We're pleased to be publishing the release candidate for v2.12.0 (the official release should follow within a few weeks). This is another bugfix release aimed at improving client compatibility and keeping up with the IRCv3 specification process.

This release includes changes to the config file format, one of which is a compatibility break: if you were using accounts.email-verification.blacklist-regexes, you can restore the previous functionality by renaming blacklist-regexes to address-blacklist and setting the additional key address-blacklist-syntax: regex. See default.yaml for an example; for more details, see the "Changed" section below.

This release includes a database change. If you have datastore.autoupgrade set to true in your configuration, it will be automatically applied when you restart Ergo. Otherwise, you can update the database manually by running ergo upgradedb (see the manual for complete instructions).

Many thanks to @adsr, @avollmerhaus, @csmith, @EchedeyLR, @emersion, @eskimo, @julio-b, knolle, @KoxSosen, @mogad0n, and @progval for contributing patches, reporting issues, and helping test.

Config changes

  • Removed accounts.email-verification.blacklist-regexes in favor of address-blacklist, address-blacklist-syntax, and address-blacklist-file. See the "Changed" section below for the semantics of these new keys. (#1997, #2088)
  • Added implicit-tls (TLS from the first byte) support for MTAs (#2048, #2049, thanks @EchedeyLR!)

Fixed

  • Fixed an edge case under allow-truncation: true (the recommended default is false) where Ergo could truncate a message in the middle of a UTF-8 codepoint (#2074)
  • Fixed CHATHISTORY TARGETS being sent in a batch even without negotiation of the batch capability (#2066, thanks @julio-b!)
  • Errors from /REHASH are now properly sanitized before being sent to the user, fixing an edge case where they would be dropped (#2031, thanks @eskimo!
  • Fixed some edge cases in auto-away aggregation (#2044)
  • Fixed a socket leak in the ident client (default/recommended configurations of Ergo disable ident and are not affected by this issue) (#2089)

Changed

  • Bouncer reattach from an "insecure" session is no longer disallowed. We continue to recommend that operators preemptively disable all insecure transports, such as plaintext listeners (#2013)
  • Email addresses are now converted to lowercase before checking them against the blacklist (#1997, #2088)
  • The default syntax for the email address blacklist is now "glob" (expressions with * and ? as wildcard characters), as opposed to the full Go regular expression syntax. To enable full regular expression syntax, set address-blacklist-syntax: regex.
  • Due to line length limitations, some capabilities are now hidden from clients that only support version 301 CAP negotiation. To the best of our knowledge, all clients that support these capabilities also support version 302 CAP negotiation, rendering this moot (#2068)
  • The default/recommended configuration now advertises the SCRAM-SHA-256 SASL method. We still do not recommend using this method in production. (#2032)
  • Improved KILL messages (#2053, #2041, thanks @mogad0n!)

Added

Internal

  • Release builds are now statically linked by default. This should not affect normal chat operations, but may disrupt attempts to connect to external services (e.g. MTAs) that are configured using a hostname that relies on libc's name resolution behavior. To restore the old behavior, build from source with CGO_ENABLED=1. (#2023)
  • Upgraded to Go 1.21 (#2045, #2084)
  • The default make target is now build (which builds an ergo binary in the working directory) instead of install (which builds and installs an ergo binary to ${GOPATH}/bin/ergo). Take note if building from source, or testing Ergo in development! (#2047)
  • make irctest now depends on make install, in an attempt to ensure that irctest runs against the intended development version of Ergo (#2047)

v2.11.1

1 year ago

Ergo 2.11.1 is a bugfix release, fixing a denial-of-service issue in our websocket implementation. We regret the oversight.

This release includes no changes to the config file format or database file format.

Security

  • Fixed a denial-of-service issue affecting websocket clients (#2039)

v2.11.0

1 year ago

We're pleased to be publishing v2.11.0, a new stable release. This is another bugfix release aimed at improving client compatibility and keeping up with the IRCv3 specification process.

This release includes changes to the config file format, all of which are fully backwards-compatible and do not require updating the file before upgrading. It includes no changes to the database file format.

Many thanks to dedekro, @emersion, @eskimo, @FiskFan1999, hauser, @jwheare, @kingter-sutjiadi, knolle, @Mikaela, @mogad0n, @PeGaSuS-Coder, and @progval for contributing patches, reporting issues, and helping test.

Config changes

  • Added fakelag.command-budgets, which allows each client session a limited number of specific commands that are exempt from fakelag. This improves compatibility with Goguma in particular. For the current recommended default, see default.yaml (#1978, thanks @emersion!)
  • The recommended value of server.casemapping is now ascii instead of precis. PRECIS remains fully supported; if you are already running an Ergo instance, we do not recommend changing the value unless you are confident that your existing users are not relying on non-ASCII nicknames and channel names. (#1718)

Changed

  • Network services like NickServ now appear in WHO responses where applicable (#1850, thanks @emersion!)
  • The extended-monitor capability now appears under its ratified name (#2006, thanks @progval!)
  • TAGMSG no longer receives automatic RPL_AWAY responses (#1983, thanks @eskimo!)
  • UBAN now states explicitly that bans without a time limit have "indefinite" duration (#1988, thanks @mogad0n!)

Fixed

  • WHO with a bare nickname as an argument now shows invisible users, comparable to WHOIS (#1991, thanks @emersion!)
  • MySQL did not work on 32-bit architectures; this has been fixed (#1969, thanks hauser!)
  • Fixed the name of the CHATHISTORY 005 token (#2008, #2009, thanks @emersion!)
  • Fixed handling of the address ::1 in WHOX output (#1980, thanks knolle!)
  • Fixed handling of AWAY with an empty parameter (the de facto standard is to treat as a synonym for no parameter, which means "back") (#1996, thanks @emersion, @jwheare!)
  • Fixed incorrect handling of some invalid modes in CS AMODE (#2002, thanks @eskimo!)
  • Fixed incorrect help text for NS SAVERIFY (#2021, thanks @FiskFan1999!)

Added

  • Added the draft/persistence capability and associated PERSISTENCE command. This is a first attempt to standardize Ergo's "always-on" functionality so that clients can interact with it programmatically. (#1982)
  • Sending SIGUSR1 to the Ergo process now prints a full goroutine stack dump to stderr, allowing debugging even when the HTTP pprof listener is disabled (#1975)

Internal

  • Upgraded to Go 1.19; this makes further architecture-specific bugs like #1969 much less likely (#1987, #1989)
  • The test suite is now parallelized (#1976, thanks @progval!)

v2.11.0-rc1

1 year ago

We're pleased to be publishing the release candidate for 2.11.0 (the official release should follow in a week or so). This is another bugfix release aimed at improving client compatibility and keeping up with the IRCv3 specification process.

This release includes changes to the config file format, all of which are fully backwards-compatible and do not require updating the file before upgrading. It includes no changes to the database file format.

Many thanks to dedekro, @emersion, @eskimo, hauser, @jwheare, @kingter-sutjiadi, knolle, @Mikaela, @mogad0n, @PeGaSuS-Coder, and @progval for contributing patches, reporting issues, and helping test.

Config changes

  • Added fakelag.command-budgets, which allows each client session a limited number of specific commands that are exempt from fakelag. This improves compatibility with Goguma in particular. For the current recommended default, see default.yaml (#1978, thanks @emersion!)
  • The recommended value of server.casemapping is now ascii instead of precis. PRECIS remains fully supported; if you are already running an Ergo instance, we do not recommend changing the value unless you are confident that your existing users are not relying on non-ASCII nicknames and channel names. (#1718)

Changed

  • Network services like NickServ now appear in WHO responses where applicable (#1850, thanks @emersion!)
  • The extended-monitor capability now appears under its ratified name (#2006, thanks @progval!)
  • TAGMSG no longer receives automatic RPL_AWAY responses (#1983, thanks @eskimo!)
  • Sending SIGUSR1 to the Ergo process now prints a full goroutine stack dump to stderr, allowing debugging even when the HTTP pprof listener is disabled (#1975)
  • UBAN now states explicitly that bans without a time limit have "indefinite" duration (#1988, thanks @mogad0n!)

Fixed

  • WHO with a bare nickname as an argument now shows invisible users, comparable to WHOIS (#1991, thanks @emersion!)
  • MySQL did not work on 32-bit architectures; this has been fixed (#1969, thanks hauser!)
  • Fixed the name of the CHATHISTORY 005 token (#2008, #2009, thanks @emersion!)
  • Fixed handling of the address ::1 in WHOX output (#1980, thanks knolle!)
  • Fixed handling of AWAY with an empty parameter (the de facto standard is to treat as a synonym for no parameter, which means "back") (#1996, thanks @emersion, @jwheare!)
  • Fixed incorrect handling of some invalid modes in CS AMODE (#2002, thanks @eskimo!)

Added

  • Added the draft/persistence capability and associated PERSISTENCE command. This is a first attempt to standardize Ergo's "always-on" functionality so that clients can interact with it programmatically. (#1982)

Internal

  • Upgraded to Go 1.19; this makes further architecture-specific bugs like #1969 much less likely (#1987, #1989)
  • The test suite is now parallelized (#1976, thanks @progval!)

v2.10.0

1 year ago

We're pleased to be publishing v2.10.0, a new stable release.

This release contains no changes to the config file format or database file format.

Many thanks to @csmith, @FiskFan1999, @Mikaela, @progval, and @thesamesam for contributing patches, and to @emersion, @eskimo, @FiskFan1999, @jigsy1, @Mikaela, @mogad0n, @progval, and @xnaas for reporting issues and helping test.

Config changes

  • For better interoperability with Goguma, the recommended value of history.chathistory-maxmessages has been increased to 1000 (previously 100) (#1919)

Changed

  • Persistent voice (AMODE +v) in a channel is now treated as a permanent invite (i.e. overriding +i on the channel) (#1901, thanks @eskimo!)
  • If you are +R, sending a direct message to an anonymous user allows them to send you replies (#1687, #1688, thanks @Mikaela and @progval!)
  • 0 is no longer valid as a nickname or account name, with a grandfather exception if it was registered on a previous version of Ergo (#1896)
  • Implemented the ratified version of the bot mode spec; the tag name is now bot instead of draft/bot (#1938)
  • Privileged WHOX on a user with multiclient shows an arbitrarily chosen client IP address, comparable to WHO (#1897)
  • SAREGISTER is allowed even under DEFCON levels 4 and lower (#1922)
  • Operators with the history capability are now exempted from time cutoff restrictions on history retrieval (#1593, #1955)

Added

  • Added draft/read-marker capability, allowing server-side tracking of read messages for synchronization across multiple clients. (#1926, thanks @emersion!)
  • INFO now includes the server start time (#1895, thanks @xnaas!)
  • Added ACCEPT command modeled on Charybdis/Solanum, allowing +R users to whitelist users who can DM them (#1688, thanks @Mikaela!)
  • Added NS SAVERIFY for operators to manually complete an account verification (#1924, #1952, thanks @tacerus!)

Fixed

  • Having the samode operator capability made all uses of the KICK command privileged (i.e. overriding normal channel privilege checks); this has been fixed (#1906, thanks @pcho!)
  • Fixed LIST <n always returning no results (#1934, thanks @progval and @mitchr!)
  • NickServ commands are now more clear about when a nickname is unavailable because it was previously registered and unregistered (#1886, thanks @Mikaela!)
  • Fixed KLINE'd clients producing a QUIT snotice without a corresponding CONNECT snotice (#1941, thanks @tacerus, @xnaas!)
  • Fixed incorrect handling of long/multiline 319 RPL_WHOISCHANNELS responses (#1935, thanks @Mikaela!)
  • Fixed LIST returning 403 ERR_NOSUCHCHANNEL for a nonexistent channel; the correct response is an empty list (#1928, thanks @emersion!)
  • Fixed +s ("secret") channels not appearing in LIST even when the client is already a member (#1911, #1923, thanks @jigsy1 and @FiskFan1999!)
  • Fixed a spurious success message in HISTSERV DELETE by always requiring a consistent number of parameters (#1881, #1927, thanks @FiskFan1999!)
  • Sending the empty string as a nickname would not always produce the expected error numeric 431 ERR_NONICKNAMEGIVEN; this has been fixed (#1933, #1936, thanks @kylef!)
  • znc.in/playback timestamps are now parsed as pairs of exact integers, not as floats (#1918)

Internal

  • Upgraded to Go 1.18 (#1925)
  • Upgraded Alpine version in official Docker image
  • Fixed some issues in the example OpenRC init scripts (#1914, #1920, thanks @thesamesam!)

v2.10.0-rc2

1 year ago

Testing of 2.10.0-rc1 revealed serious bugs in the new draft/read-marker implementation. Consequently, we're publishing a second release candidate that fixes these issues. The final release is expected within a week or so; we apologize for the delay.

Fixed

  • Fixed bugs in the new draft/read-marker implementation (#1961, #1962)

v2.10.0-rc1

1 year ago

We're pleased to be publishing the release candidate for 2.10.0 (the official release should follow in a week or so).

This release contains no changes to the config file format or database file format.

Many thanks to @csmith, @FiskFan1999, @Mikaela, @progval, and @thesamesam for contributing patches, and to @emersion, @eskimo, @FiskFan1999, @jigsy1, @Mikaela, @mogad0n, @progval, and @xnaas for reporting issues and helping test.

Config changes

  • For better interoperability with Goguma, the recommended value of history.chathistory-maxmessages has been increased to 1000 (previously 100) (#1919)

Changed

  • Persistent voice (AMODE +v) in a channel is now treated as a permanent invite (i.e. overriding +i on the channel) (#1901, thanks @eskimo!)
  • If you are +R, sending a direct message to an anonymous user allows them to send you replies (#1687, #1688, thanks @Mikaela and @progval!)
  • 0 is no longer valid as a nickname or account name, with a grandfather exception if it was registered on a previous version of Ergo (#1896)
  • Implemented the ratified version of the bot mode spec; the tag name is now bot instead of draft/bot (#1938)
  • Privileged WHOX on a user with multiclient shows an arbitrarily chosen client IP address, comparable to WHO (#1897)
  • SAREGISTER is allowed even under DEFCON levels 4 and lower (#1922)
  • Operators with the history capability are now exempted from time cutoff restrictions on history retrieval (#1593, #1955)

Added

  • Added draft/read-marker capability, allowing server-side tracking of read messages for synchronization across multiple clients. (#1926, thanks @emersion!)
  • INFO now includes the server start time (#1895, thanks @xnaas!)
  • Added ACCEPT command modeled on Charybdis/Solanum, allowing +R users to whitelist users who can DM them (#1688, thanks @Mikaela!)
  • Added NS SAVERIFY for operators to manually complete an account verification (#1924, #1952, thanks @tacerus!)

Fixed

  • Having the samode operator capability made all uses of the KICK command privileged (i.e. overriding normal channel privilege checks); this has been fixed (#1906, thanks @pcho!)
  • Fixed LIST <n always returning no results (#1934, thanks @progval and @mitchr!)
  • NickServ commands are now more clear about when a nickname is unavailable because it was previously registered and unregistered (#1886, thanks @Mikaela!)
  • Fixed KLINE'd clients producing a QUIT snotice without a corresponding CONNECT snotice (#1941, thanks @tacerus, @xnaas!)
  • Fixed incorrect handling of long/multiline 319 RPL_WHOISCHANNELS responses (#1935, thanks @Mikaela!)
  • Fixed LIST returning 403 ERR_NOSUCHCHANNEL for a nonexistent channel; the correct response is an empty list (#1928, thanks @emersion!)
  • Fixed +s ("secret") channels not appearing in LIST even when the client is already a member (#1911, #1923, thanks @jigsy1 and @FiskFan1999!)
  • Fixed a spurious success message in HISTSERV DELETE by always requiring a consistent number of parameters (#1881, #1927, thanks @FiskFan1999!)
  • Sending the empty string as a nickname would not always produce the expected error numeric 431 ERR_NONICKNAMEGIVEN; this has been fixed (#1933, #1936, thanks @kylef!)
  • znc.in/playback timestamps are now parsed as pairs of exact integers, not as floats (#1918)

Internal

  • Upgraded to Go 1.18 (#1925)
  • Upgraded Alpine version in official Docker image
  • Fixed some issues in the example OpenRC init scripts (#1914, #1920, thanks @thesamesam!)