Todays weechat update shows the following warning which may or may not be of importance:
weechat (1.1.1-1) unstable; urgency=medium
Since version 1.1, there is a new format for regexp replacement in
triggers. This format is incompatible with version 1.0. The existing
triggers will not be automatically updated.
See http://www.weechat.org/files/releasenotes/ReleaseNotes-1.1.html
As I haven't used weechat so far I have no clue wherther or not it's important, but as siduction support on IRC might be affected I let you know.