Jira issue originally created by user @beberlei:
Igbinary is supposed to be faster and better than serialize/unserialize(). We should check if its relevant for us (metadata and query caching for example):
Comment created by @beberlei:
Comment created by @ocramius:
I don't think this is still relevant: closing it, since the serialization improvement can be achieved by hacking a new Doctrine\Common\Cache\Cache implementation for those who really need it.
Issue was closed with resolution "Won't Fix"
Just a note. [~beberlei] told me that igbinary overrides unserialize breaking compat. I personally think that's a very bad idea, but it's not a problem if you use PHP 5.4, since we automatically get rid of the unserialize hack and use ReflectionClass#newInstanceWithoutConstructor() instead, which is much cleaner