v2.4.2

Bug fix

• Fixed a 403 when replying in a group you can see but haven't joined. The thread UI showed a reply composer to any logged-in user, but the backend only accepts replies from active group members (and admins/global moderators). A logged-in non-member viewing a public group therefore got a composer that returned 403 (social-group-posts) on submit.

  The discussion API now exposes a canReply capability that mirrors the backend write gate exactly, and the composer + per-post reply buttons are gated on it. Non-members see a "Join this group to reply" hint instead of a failing composer. Reported by flavour1.

Full Changelog: v2.4.1...v2.4.2