https://github.com/ahf/irssi-old/issues
https://github.com/ahf/irssi-old/issues/8
https://github.com/irssi-import/bugs.irssi.org/issues
http://bugs.debian.org/irssi
http://bugz.fedoraproject.org/irssi

(copied from https://github.com/ahf/irssi-old/issues/8 - added github flavored markdown checkboxes to use as task list)

haspatch:

• FS#798 - patch Irssi::signal_remove to allow removal of handlers created with coderef callbacks
• FS#902 - Empty lines in output of "exec" command cause "Not enough parameters given" errors
• FS#383 - http proxy + ssl crypts CONNECT
• FS#60 - 2 icb bugs
• FS#621 - [PATCH] Color support for "gui_entry" to allow better spellcheckers.
• FS#733 - Please don't translate capital letter in channel name into small letter
• FS#749 - [patch] make xirssi work with latest SVN
• FS#781 - write_buffer causes awaylog to miss messages (patch included)
• FS#827 - missed redraws due to concurrency error
• FS#893 - problem that recode doesn't affect nicknames and topic, ownnick..
• FS#275 - /hilight -mask -line nick!@ fails
• FS#531 - [PATCH] Add signal for paste detection events
• FS#725 - window move up/down loses windows
• FS#904 - paste_buffer_join_lines() - wrong use of "paste_buffer" variable
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=637175 perl dcc file size issue

(confirmed still an issue)

• FS#5 /action #channel doesn't use action_public_channel format
• FS#124 ", x" in a query triggers assertion failures
• FS#127 probably many issues with paste_detection
• FS#377 - away messages failed to show

shouldcheck:

• FS#156 spaces in dcc filenames (happens in xchat 2.4.4, not in the latest version, can be ignored)
• FS#331 !channels and layout save (/layout save stores the "visible name" of !-channels (safe channels) instead of the real one #183)
• FS#782 FS#816 - Wrong string length calculation for sbar
• FS#786 - $[num]variable syntax truncates to zero width and worse in nested templates
• FS#107 - /me action and hilight
• FS#158 - Padding and length calculation of arguments ($...) is broken
• FS#464 - server connection msgs go to 2 windows rather than just 1 or many more
• FS#473 - alternate_nick to null at connect
• FS#703 - HIlight inside action doesn't end up in awaylog
• FS#720 - "/ignore -except #channel QUITS" not working as expected
• FS#579 - Irssi does not fall back to to IPv4 address if IPv6 address is unreacable

github forks:

• https://github.com/shabble/irssi/branches
• https://github.com/ensc/irssi-proxy/tree/master
• msparks/irssi-old@master...ms
• https://github.com/zewt/irssi/commits/master
• https://github.com/ThomasHabets/irssi/commits/master
• m1el/irssi@6f8f2b4?w=1
• https://github.com/lyska/irssi/commits/master
• https://github.com/xinutec/irssi/commits/master
• https://github.com/Aerdan/irssi/commits?author=Aerdan
• https://github.com/gparent/irssi/commits/master?author=gparent
• https://github.com/mauke/irssi-hax/commits/master
• https://github.com/evalfile/irssi/commits/master?author=evalfile

(thanks @dequis)