weechat/weechat v4.0.5 on GitHub

New features

core: automatically backup config file read if it has an unsupported version (issue #2013)
core: display a message when a configuration file is updated to a newer version
python: make stub (weechat.pyi) compatible with Python 3.8 and 3.9 (issue #2006)

irc: add option irc.look.open_pv_buffer_echo_msg to open private buffer on self message when capability echo-message is enabled (issue #2016)
irc: fix title of private buffers wrongly set to own address when capability echo-message is enabled (issue #2016)
irc: fix autojoin of channels when private buffers are opened (issue #2012)
irc: fix string comparison when CASEMAPPING is set to "ascii"
script: fix removal of script in system directory while trying to install a script (issue #2019)
script: fix autoload of multiple scripts at once with /script autoload (issue #2018)
script: fix crash when a /script command triggers another /script command (issue #923)
xfer: fix memory leak on plugin unload