This files describes API changes in /cache/stores/* - cache store plugins.
Information provided here is intended especially for developers.

=== 2.7 ===
* cache_store::is_ready is no longer abstract, calling cache_store::are_requirements_met by default.

=== 2.6 ===
* All cache instances are recorded and subsequent requests are given a reference to the original instance.
* The persistent option for the cache definition has been deprecated. Please use the staticacceleration option instead.
* There is a new static acceleration option. If enabled data passing through the cache is held onto.
* The persistentmaxsize option has been renamed to staticaccelerationsize. It does the same thing.
* cache_definition::should_be_persistent has been deprecated. Please call cache_definition::use_static_acceleration instead.
* cache_definition::get_persistent_max_size has been deprecated. Please call cache_definition::get_static_acceleration_size instead.
* cache::is_using_persist_cache() has been deprecated. Please call  cache::use_static_acceleration()
* cache::is_in_persist_cache() has been deprecated. Please call  cache::static_acceleration_has()
* cache::get_from_persist_cache() has been deprecated. Please call  cache::static_acceleration_get()
* cache::set_in_persist_cache() has been deprecated. Please call  cache::static_acceleration_set()
* cache::delete_from_persist_cache() has been deprecated. Please call cache::static_acceleration_delete()
* If you have any custom cache loaders you will need to rename these methods if you have overriden them and adjust any calls you may have made to them.

=== 2.5 ===
* cleanup method renamed to instance_deleted.
  It is now called when the store is deleted as all comments suggested anyway.
* instance_created method added.
  It is called when the store is created for the very first time.