Varnish HTTP Cache

I’m new here, please explain this Varnish thing

What is happening

2019-10-21 - Security Advisory: Information leak

All supported versions of Varnish can potentially leak some information when certain conditions are met. Please see VSV00004.

2019-10-21 - Security releases: 6.0.5, 6.2.2 and 6.3.1

Varnish versions 6.0.5, 6.2.2 and 6.3.1 are now available. See VSV00004 for details.

2019-09-17 - Varnish 6.3.0 is released

Our bi-annual “fresh” release Varnish Cache 6.3.0

2019-09-03 - Security Advisory: Denial of Service

All supported versions of Varnish are vulnerable to a Denial of Service attack, please see VSV00003.

2019-09-03 - Security releases: 6.0.4 and 6.2.1

Varnish versions 6.0.4 and 6.2.1 are now available. See VSV00003 for details.

2019-03-15 - Varnish 6.2.0 is released

Come and get it… Varnish Cache 6.2.0

This release brings many improvements under the hood and also some changes that VCL writers need to be aware of.

Read more about it here

2019-02-20 - Maintenance release: Varnish Cache 6.0.3

We are happy to announce the release of Varnish Cache 6.0.3.

This maintenance release is recommended for all users of the 6.0 LTS and contains several bug fixes, improvements and new features. More information is available in the Change log

2019-02-11 - Maintenance release: Varnish Cache 4.1.11

We are happy to announce the release of Varnish Cache 4.1.11.

This maintenance release is recommended for all users of 4.0 and 4.1 versions, and contains several bug fixes. More information is available in the Change log

2018-11-12 - Varnish 6.0.2 released, official Long Term Support

We are happy to announce the release of Varnish Cache 6.0.2.

This release is recommended for everyone running 6.0, and it contains many bug fixes and some new features.

At the same time we bring you the news that that 6.0 will maintained much longer than other Varnish Cache Releases, and that new repositories, Varnish 6.0 LTS, are introduced.

If you are currently using official packages, you need to change to the new LTS repositories to get 6.0.2. Please follow the instructions on the release page to set up the new repository for your platform.

The packaging of this release differs slightly from previous Varnish versons. This is described in the upgrading notes for 6.0. These changes were originally intended for the initial 6.0 release, but unfortunately they did not make it into the 6.0.0 or 6.0.1 packages.

At some point the previous LTS, Varnish 4.1, will reach its End of Life. It was first released in September 2015, and now is the time for users to start upgrading to Varnish 6.0 LTS.

If you are still using Varnish 4.1, you should be able to migrate to 6.0 without touching your VCL. In our experience so far, upgrading is very straightforward.

Read more about upgrading and what’s new in Varnish Cache 6.0.

Older news

Package repository status

The official Linux (apt/yum) package repositories are now located at A list of all available repositories can be found at:

For more details on packages, see Releases & Downloads


You can access the varnish-cache homepages with HTTP or HTTPS as you like.

We save the logfiles from our Varnish instance for a limited period, in order to be able to debug problems.

We do not use any external trackers and do not analyze traffic.