CHANGELOG
=========
3.3.0
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* [EXPERIMENTAL] added CacheItem::getPreviousTags() to get bound tags coming from the pool storage if any
* added PSR-16 "Simple Cache" implementations for all existing PSR-6 adapters
* added Psr6Cache and SimpleCacheAdapter for bidirectional interoperability between PSR-6 and PSR-16
* added MemcachedAdapter (PSR-6) and MemcachedCache (PSR-16)
* added TraceableAdapter (PSR-6) and TraceableCache (PSR-16)
3.2.0
* added TagAwareAdapter for tags-based invalidation
* added PdoAdapter with PDO and Doctrine DBAL support
* added PhpArrayAdapter and PhpFilesAdapter for OPcache-backed shared memory storage (PHP 7+ only)
* added NullAdapter
3.1.0
* added the component with strict PSR-6 implementations
* added ApcuAdapter, ArrayAdapter, FilesystemAdapter and RedisAdapter
* added AbstractAdapter, ChainAdapter and ProxyAdapter
* added DoctrineAdapter and DoctrineProvider for bidirectional interoperability with Doctrine Cache
