symfony/UPGRADE-2.7.md

UPGRADE FROM 2.6 to 2.7

Router

• Route conditions now support container parameters which can be injected into condition using %parameter% notation. Due to the fact that it works by replacing all parameters with their corresponding values before passing condition expression for compilation there can be BC breaks where you could already have used percentage symbols. Single percentage symbol usage is not affected in any way. Conflicts may occur where you might have used % as a modulo operator, here's an example: foo%bar%2 which would be compiled to $foo % $bar % 2 in 2.6 but in 2.7 you would get an error if bar parameter doesn't exist or unexpected result otherwise.