Merge branch '6.2' into 6.3

* 6.2:
  [FrameworkBundle]  Update framework cache reference
  Remove the unneeded versionadded directives
  update framework configuration reference for cache

Author: javiereguiluz

reference/configuration/framework.rst

@@ -2901,9 +2901,10 @@ app
 **type**: ``string`` **default**: ``cache.adapter.filesystem``
 
 The cache adapter used by the ``cache.app`` service. The FrameworkBundle
-ships with multiple adapters: ``cache.adapter.apcu``, ``cache.adapter.doctrine``,
-``cache.adapter.system``, ``cache.adapter.filesystem``, ``cache.adapter.psr6``,
-``cache.adapter.redis``, ``cache.adapter.memcached`` and ``cache.adapter.pdo``.
+ships with multiple adapters: ``cache.adapter.apcu``, ``cache.adapter.system``,
+``cache.adapter.filesystem``, ``cache.adapter.psr6``, ``cache.adapter.redis``,
+``cache.adapter.memcached``, ``cache.adapter.pdo`` and
+``cache.adapter.doctrine_dbal``.
 
 There's also a special adapter called ``cache.adapter.array`` which stores
 contents in memory using a PHP array and it's used to disable caching (mostly on