Changes in synapse v0.16.0-rc2 (2016-06-08) =========================================== Features: * Add configuration option for tuning GC via ``gc.set_threshold`` (PR #849) Changes: * Record metrics about GC (PR #771, #847, #852) * Add metric counter for number of persisted events (PR #841) Bug fixes: * Fix 'From' header in email notifications (PR #843) * Fix presence where timeouts were not being fired for the first 8h after restarts (PR #842) * Fix bug where synapse sent malformed transactions to AS's when retrying transactions (Commits 310197b, 8437906) Performance Improvements: * Remove event fetching from DB threads (PR #835) * Change the way we cache events (PR #836) * Add events to cache when we persist them (PR #840)