Is it safe to update Sonarr?
Tracking Sonarr/Sonarr
Safe to update.
The release contains only one change — a bug fix for qBittorrent basic auth. The notes describe no breaking changes, required migrations, deprecations, or manual upgrade steps.
What changed
v4.0.19.2979 is a minimal patch release containing a single bug fix: basic authentication for qBittorrent download clients was broken and has been corrected. No new features, configuration changes, or migrations are included. Users who use qBittorrent with basic auth will see restored connectivity after updating.
Source
Every verdict on Bumplog traces back to a GitHub release. No invented details.