Varnish Controller 7.3.4 Release

Published March 5, 2026.

This is a patch release and each component can be individually upgraded from previous release.

Improved router memory efficiency by caching and reusing internal resources.
Reduced PostgreSQL log (WAL) file growth when no statistics retention is configured.
Always use TCP to lookup CAA records for ACME certificates.
Fixed unnecessary deployment checks during auto-deploy that could result in empty deployments.
Improved API documentation by adding descriptions to enums in the Swagger documentation.
UI: Improved feedback when deploying git-managed VCLGroups with compilation errors.

See Varnish Controller Changelog for more details on the changes and the upgrade notes for more details on how to upgrade.