[2.25.0]
Update NodeBB to 4.9.0
Full Changelog
support the magic break string '' in content, such that if found, outbound federation will use all content up to (and including) that string in its summary (cd357aa)
add a '[...]' to the end of the generated summary when federating out articles (fep-b2b8) (bf0f522)
prune topics remote cids, closes #13461 (20eb02f)
change notif controls to toggles (523e3b4)
add invitedBy to user info page, closes #13972, closes #13997 (1dae3d2)
quick create on world page (5df2b8b)
allow configuring unreadCutoff per user, closes #6811 (8c6ce19)
introduce new topics:crosspost privilege (5c35dc8)
add guest-cta.tpl and lang strings (9da6747)
track all caches created in acp (9ac507e)