This release drops support for HHVM and increases the minimum supported PHP version to 7.1.0.

Multi-operation caches have been added, such as:

• MultiDeleteCache
• MultiGetCache
• MultiPutCache
• MultiOperationCache (aggregating the ones listed above)

These batched caches can massively improve performance throughput of your applications when used in the right context.

Some concurrency, file rights and error handling issues around FileCache, PhpFileCache and FilesystemCache have been fixed, and the PhpFileCache can now store any kind of information by serializing the incoming data.

ExtMongoDbCache, MongoDBCache and LegacyMongoDBCache were added in order to support both the existing MongoDB polyfill libraries and the newer MongoDB official PHP extension.

Further improvements have been applied to the documentation, and multiple static analysis introspection fixes were merged.

Total issues resolved: 33

• 132: Enable Scrutinizer-CI coverage thanks to @Ocramius
• 133: Killed PHP 5.5 support thanks to @GrahamCampbell
• 134: Typo, changed Exception to \Exception thanks to @Nyholm
• 142: Support for MongoDBCache on PHP 7 using ext-mongodb thanks to @holtkamp
• 147: Corrected FileCache notices caused by custom error handlers thanks to @Stajor
• 152: Corrected PhpFileCache notices caused by file format mismatch thanks to @jeanCarloMachado
• 153: Add .gitattributes to remove unneeded files from exported package thanks to @Slamdunk
• 154: Cache anything with PhpFileCache thanks to @trakos
• 155: Add MultiDeleteCache interface and default CacheProvider implementation thanks to @bburnichon
• 162: Adding license header to PredisCache thanks to @rnamiki
• 165: Added link to the documentation homepage thanks to @Grafikart
• 166: Removed unused imports thanks to @localheinz
• 167: Corrected return type of PredisCache#doContains(), which should be bool (was int) thanks to @localheinz
• 168: Corrected case sensitivity issues in the imports of WinCacheCache thanks to @localheinz
• 169: Corrected missing second parameter in assertion in CacheTest thanks to @localheinz
• 170: Corrected mismatch between SQLite3CacheTest and its file name thanks to @localheinz
• 171: Use short array syntax thanks to @localheinz
• 172: Removed assignments inlined in conditionals thanks to @localheinz
• 183: Add PHP 7.1 to the build matrix thanks to @Ocramius
• 185: #152 #147 - silence failed file access attempts in file-based caches thanks to @Ocramius
• 190: #154 store anything in the PhpFileCache thanks to @Ocramius
• 196: Fix temporary file rights on shared storage when using a FileCache thanks to @mikeSimonson
• 198: Disable PHPUnit feature @runInSeparateProcess when not needed thanks to @snsanich
• 201: Harden tests around doContains in MemcachedCache thanks to @SpacePossum
• 203: Remove support for PHP 5.x thanks to @railto
• 204: Bumped phpunit version to ^5.7 thanks to @gabbydgab
• 207: Implement multi-delete on current cache drivers thanks to @lcobucci
• 214: Combine multi-* operation interfaces into a single one thanks to @lcobucci
• 217: Redis: Remove useless ifdef for HHVM thanks to @ostrolucky
• 219: Drop HHVM support thanks to @lcobucci
• 220: Require PHP 7.1 thanks to @lcobucci
• 221: Create expiration index when getting expired entry in the MongoDBCache thanks to @alcaeus
• 222: Add cache provider for ext-mongodb thanks to @alcaeus