This release introduces:

• Support for newer ext-couchbase releases
• Support for ext-redis v4
• Deprecates the MemcacheCache, RiakCache and XcacheCache drivers

Total issues resolved: 16

• 229: add support for ext-couchbase:^2.3.0 thanks to @abacaphiliac
• 232: Use shields.io badges so things look better thanks to @lcobucci
• 233: Improve SQLite3 adapter thanks to @lcobucci
• 235: Upgrade PHPUnit thanks to @lcobucci
• 242: Removing duplicate license header thanks to @mikeSimonson
• 250: Update to PHPUnit 7 thanks to @carusogabriel
• 251: Apply doctrine/cs v4 thanks to @carusogabriel
• 255: Change homepage link to https thanks to @S1SYPHOS
• 264: Add php-redis v4 support thanks to @Killium
• 265: Update & fix & lock CS thanks to @Majkl578
• 266: Drop Coveralls config thanks to @Majkl578
• 267: Exclude legacy untestable drivers from coverage & mark them deprecated thanks to @Majkl578
• 268: Scrutinizer: Fix missing MongoDB dependency thanks to @Majkl578
• 270: ApcuCache driver name fixed thanks to @Vehsamrak
• 271: CI: Lock Couchbase extension to 2.4.6 to avoid dependency mismatch thanks to @Majkl578
• 275: Return type mismatch in RedisCache#contains() and Redis#exists() thanks to @Sirgalas