symfony/symfony — pull request #5557 by krmcbride (2012-09-19 20:50:52+00:00)
Title: Fixed FlashBagInterface phpdoc, clarified upgrade doc

The fact that multiple flash messages are now stored/retrieved per type was an additional BC break that I missed when I first went through the 2.1 update doc, and it didn't help that the phpdoc was outdated.

These changes just clarify things a little.