CHANGELOG

4.3.0

removed psr/simple-cache dependency, run composer require psr/simple-cache if you need it
deprecated all PSR-16 adapters, use Psr16Cache or Symfony\Contracts\Cache\CacheInterface implementations instead
deprecated SimpleCacheAdapter, use Psr16Adapter instead

added support for connecting to Redis clusters via DSN
added support for configuring multiple Memcached servers via DSN
added MarshallerInterface and DefaultMarshaller to allow changing the serializer and provide one that automatically uses igbinary when available
implemented CacheInterface, which provides stampede protection via probabilistic early expiration and should become the preferred way to use a cache
added sub-second expiry accuracy for backends that support it
added support for phpredis 4 compression and tcp_keepalive options
added automatic table creation when using Doctrine DBAL with PDO-based backends
throw LogicException when CacheItem::tag() is called on an item coming from a non tag-aware pool
deprecated CacheItem::getPreviousTags(), use CacheItem::getMetadata() instead
deprecated the AbstractAdapter::unserialize() and AbstractCache::unserialize() methods
added CacheCollectorPass (originally in FrameworkBundle)
added CachePoolClearerPass (originally in FrameworkBundle)
added CachePoolPass (originally in FrameworkBundle)
added CachePoolPrunerPass (originally in FrameworkBundle)

added using options from Memcached DSN
added PruneableInterface so PSR-6 or PSR-16 cache implementations can declare support for manual stale cache pruning
added prune logic to FilesystemTrait, PhpFilesTrait, PdoTrait, TagAwareAdapter and ChainTrait
now FilesystemAdapter, PhpFilesAdapter, FilesystemCache, PhpFilesCache, PdoAdapter, PdoCache, ChainAdapter, and ChainCache implement PruneableInterface and support manual stale cache pruning

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)

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

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