Changes in synapse v0.24.0-rc1 (2017-10-19) =========================================== Features: * Add Group Server (PR #2352, #2363, #2374, #2377, #2378, #2382, #2410, #2426, #2430, #2454, #2471, #2472, #2544) * Add support for channel notifications (PR #2501) * Add basic implementation of backup media store (PR #2538) * Add config option to auto-join new users to rooms (PR #2545) Changes: * Make the spam checker a module (PR #2474) * Delete expired url cache data (PR #2478) * Ignore incoming events for rooms that we have left (PR #2490) * Allow spam checker to reject invites too (PR #2492) * Add room creation checks to spam checker (PR #2495) * Spam checking: add the invitee to user_may_invite (PR #2502) * Process events from federation for different rooms in parallel (PR #2520) * Allow error strings from spam checker (PR #2531) * Improve error handling for missing files in config (PR #2551) Bug fixes: * Fix handling SERVFAILs when doing AAAA lookups for federation (PR #2477) * Fix incompatibility with newer versions of ujson (PR #2483) Thanks to @jeremycline! * Fix notification keywords that start/end with non-word chars (PR #2500) * Fix stack overflow and logcontexts from linearizer (PR #2532) * Fix 500 error when fields missing from power_levels event (PR #2552) * Fix 500 error when we get an error handling a PDU (PR #2553)