Important: If you are not running 4.1.9r1 (released November 30th 2017) or newer, make sure you read the associated information on upgrading to 4.1.9r1 before you upgrade to 4.1.11r2.
This release is a bug fix release, and is recommended for all users of Varnish Cache Plus 4.1.x.
The previous release, 4.1.11r1, changed the ABI slightly, and this release fixes it. For this reason, 4.1.11r1 will be removed from the repository.
See the change log for details on this and previous releases.