Varnish Controller 7.4.0 Release

Published March 10, 2026.

This is a minor release. It is most relevant for users using history-based routing, users who want to allow non-admin API tokens to trigger cache invalidation, or users experiencing incorrect error reporting on multi-domain invalidations.

Added skipHistoryUtil option to routing rules. When enabled, the router checks endpoint utilization before returning cached history endpoints, skipping fully utilized ones.
Added APIPurger template role and basicinvalidationrequest permission, allowing organization-level users to trigger basic cache invalidation without requiring system administrator privileges.
Fixed an issue where cache invalidation across multiple domains could fail due to empty responses being incorrectly counted as errors.
Built with Go 1.25.8.

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