symfony/UPGRADE-2.2.md

UPGRADE FROM 2.1 to 2.2

HttpFoundation

• The MongoDbSessionHandler default field names and timestamp type have changed.

  The sess_ prefix was removed from default field names. The session ID is now stored in the _id field by default. The session date is now stored as a MongoDate instead of MongoTimestamp, which also makes it possible to use TTL collections in MongoDB 2.2+ instead of relying on the gc() method.

Deprecations

• The Request::splitHttpAcceptHeader() is deprecated and will be removed in 2.3.

  You should now use the AcceptHeader class which give you fluent methods to parse request accept-* headers. Some examples:

  $accept = AcceptHeader::fromString($request->headers->get('Accept'));
  if ($accept->has('text/html') {
      $item = $accept->get('html');
      $charset = $item->getAttribute('charset', 'utf-8');
      $quality = $item->getQuality();
  }
  
  // accepts items are sorted by descending quality
  $accepts = AcceptHeader::fromString($request->headers->get('Accept'))->all();