2.5.0

Cache Tagging

• Added: MaxHeaderValueLengthFormatter to allow splitting cache tag headers into
  multiple headers.

Symfony HttpCache

• Have cache invalidator check for presence of Psr6Store for a better guess
  whether the cache really is TagCapable or not.

2.4.0

Symfony

• Added: CleanupCacheTagsListener to remove the cache tags header from the final
  response that is sent to the client. Add this listener to your cache kernel.

Tagging

• Improved: The ResponseTagger does now remove duplicate tags.

2.3.1

Varnish

• Fixed: Do not preg_quote tags when using xkey. Quoting is only used for BAN
  requests that expect a regular expression. This bug only affected you if you
  use xkey and used characters in your tags that are changed by preg_quote.

2.3.0

ProxyClient

• The HttpProxyClient now accepts an instance of the new Dispatcher interface
  instead of the concrete HttpDispatcher, allowing for more flexibility.

Symfony

• Introduced a new KernelDispatcher for the Symfony proxy that calls the application
  kernel directly instead of executing a full HTTP request.

2.2.1

• more friendly VCL for when std is used in main VCL

2.2.0

Varnish

• Added support for the more efficient xkey cache tag system. BAN remains the
  default cache tagging system, but if you can install the varnish modules in
  your system, it is recommended to update to xkey.
• No inline C is needed for the custom TTL header with Varnish 4 or better. use
  std.duration() instead.

Symfony user context

• You can now also specify which headers are used for
  authentication to detect anonymous requests. By default, the headers are the
  previously hardcoded Authorization, HTTP_AUTHORIZATION and
  PHP_AUTH_USER.

1.4.5

• Symfony user context: You can now also specify which headers are used for
  authentication to detect anonymous requests. By default, the headers are the
  previously hardcoded Authorization, HTTP_AUTHORIZATION and
  PHP_AUTH_USER.

2.1.3

• Fixed bug in Symfony tag invalidation.
  Do not check if host is missing in request creation.

2.1.2

• Fixed issue with detection if toflar psr6 store is available

2.1.1

• Fix varnish tag invalidation regular expression to avoid matching on tag endings