Synapse 1.147.0rc1 (2026-02-03)

Bugfixes

Fix memory leak caused by not cleaning up stopped looping calls. Introduced in v1.140.0. (#19416)
Fix a typo that incorrectly made setuptools_rust a runtime dependency. (#19417)

Prune stale entries from sliding_sync_connection_required_state table. (#19306)
Update "Event Send Time Quantiles" graph to only use dots for the event persistence rate (Grafana dashboard). (#19399)
Update and align Grafana dashboard to use regex matching for job selectors (job=~"$job") so the "all" value works correctly across all panels. (#19400)
Don't retry joining partial state rooms all at once on startup. (#19402)
Disallow requests to the health endpoint from containing trailing path characters. (#19405)
Add notes that new experimental features should have associated tracking issues. (#19410)
Bump pyo3 from 0.26.0 to 0.27.2 and pythonize from 0.26.0 to 0.27.0. Contributed by @razvp @ ERCOM. (#19412)