Updates
Release notes
Review Arc Runtime 3.x changes, migration notes, deprecations, and fixed defects.
3.4.0 - Jul 18, 2026
- Added route fixture testing to arcctl.
- Added lease pressure to stream inspection output.
- Reduced configuration planning time for workspaces with more than 500 routes.
- Deprecated unscoped operator keys. Removal is planned for 4.0.
3.3.2 - Jun 26, 2026
- Fixed a worker reconnect loop after local machine sleep.
- Corrected JSON output for empty quarantine lists.
Migration policy
Minor releases remain configuration-compatible. Major releases include a migration guide and at least six months of overlap for supported production versions.