chore: Security announcement

docs/public/.well-known/continuwuity/announcements

@@ -6,12 +6,10 @@
             "message": "Welcome to Continuwuity! Important announcements about the project will appear here."
         },
         {
-            "id": 3,
-            "message": "_taps microphone_ The Continuwuity 0.5.0-rc.7 release is now available, and it's better than ever! **177 commits**, **35 pull requests**, **11 contributors,** and a lot of new stuff!\n\nFor highlights, we've got:\n\n* 🕵️ Full Policy Server support to fight spam!\n* 🚀 Smarter room & space upgrades.\n* 🚫 User suspension tools for better moderation.\n* 🤖 reCaptcha support for safer open registration.\n* 🔍 Ability to disable read receipts & typing indicators.\n* ⚡ Sweeping performance improvements!\n\nGet the [full changelog and downloads on our Forgejo](https://forgejo.ellis.link/continuwuation/continuwuity/releases/tag/v0.5.0-rc.7) - and make sure you're in the [Announcements room](https://matrix.to/#/!releases:continuwuity.org/$hN9z6L2_dTAlPxFLAoXVfo_g8DyYXu4cpvWsSrWhmB0) to get stuff like this sooner."
-        },
-        {
-            "id": 5,
-            "message": "It's a bird! It's a plane! No, it's 0.5.0-rc.8.1!\n\nThis is a minor bugfix update to the rc8 which backports some important fixes from the latest main branch. If you still haven't updated to rc8, you should skip to main. Otherwise, you should upgrade to this bugfix release as soon as possible.\n\nBugfixes backported to this version:\n\n- Resolved several issues with state resolution v2.1 (room version 12)\n- Fixed issues with the `restricted` and `knock_restricted` join rules that would sometimes incorrectly disallow a valid join\n- Fixed the automatic support contact listing being a no-op\n- Fixed upgrading pre-v12 rooms to v12 rooms\n- Fixed policy servers sending the incorrect JSON objects (resulted in false positives)\n- Fixed debug build panic during MSC4133 migration\n\nIt is recommended, if you can and are comfortable with doing so, following updates to the main branch - we're in the run up to the full 0.5.0 release, and more and more bugfixes and new features are being pushed constantly. Please don't forget to join [#announcements:continuwuity.org](https://matrix.to/#/#announcements:continuwuity.org) to receive this news faster and be alerted to other important updates!"
+            "id": 6,
+            "mention_room": true,
+            "date": "2025-12-22",
+            "message": "Continuwuity v0.5.0 has been released. **The release contains a fix for the critical vulnerability [GHSA-22fw-4jq7-g8r8](https://github.com/continuwuity/continuwuity/security/advisories/GHSA-22fw-4jq7-g8r8). Update as soon as possible.**\\n\\nThis has been *actively exploited* to create fake leave events in the Continuwuity rooms. Please leave and rejoin the rooms to fix any issues this may have caused. \\n\\n - [Continuwuity (space)](https://matrix.to/#/!PxtzompFuodlyzdCDtV5lzjXs10XIHeOOaq_FYodHyk?via=ellis.link&via=gingershaped.computer&via=continuwuity.org)\\n - [Continuwuity](https://matrix.to/#/!kn3VQSLcgWGUFm0FFRid4MinJ_aeZPjHQ0irXbHa3bU?via=ellis.link&via=gingershaped.computer&via=continuwuity.org)\\n - [Continuwuity Announcements](https://matrix.to/#/!d7zDZg1Vu5nhkCi50jNfOIObD5fpfGhfl48SZWZek7k?via=ellis.link)\\n - [Continuwuity Offtopic](https://matrix.to/#/!QlOomq-suHC9rJHfDFVdbcGg4HS2ojSQ0bo4W2JOGMM?via=ellis.link&via=gingershaped.computer&via=continuwuity.org)\\n - [Continuwuity Development](https://matrix.to/#/!aAvealFbgiKTJGzumNbjuwDgt1tOkBKwiyfYqE3ouk0?via=ellis.link&via=explodie.org&via=continuwuity.org)\\n"
         }
     ]
 }