Activation of IGBinary serialization extension in 5.4 by default

Hey guys, After a brief discussion with Pierre I'm taking this discussion to here. We have the igbinary pecl extension available [1], however not many of our userbase are familiar that it even exists. Here [2] is the performance boost we get from using igbinary with serialize() and unserialize(). Here we get a great perf boost, and what's more excellent as we don't have to break BC to get there! This seems like a no-brainer and a good investment in the speed increase of PHP by default for the future users of the platform. [1] http://pecl.php.net/package/igbinary [2] http://www.php.net/~pierre/vcqa/apcigninary_perf.png Comments please. Regards, Paul Dragoonis.