Upgrade to 1.4
Minor BC Break:
Doctrine\Common\Cache\FileCache#$extension is now
If you need to override the value of
Doctrine\Common\Cache\FileCache#$extension, then use the
second parameter of
Doctrine\Common\Cache\FileCache#__construct() instead of overriding
the property in your own implementation.
Minor BC Break: file based caches paths changed
Doctrine\Common\Cache\FilesystemCache are using a different cache paths structure.
If you rely on warmed up caches for deployments, consider that caches generated
<1.4 are not compatible with the new directory structure,
and will be ignored.