When will CI support PHP 5.3?

[eluser]micpog[/eluser]
CI is suitable for me, as I wrote below. But We are living in 2013 not 2009, I thought safety and technology is top priority case for any developers, so I wanted to ask this question.

So if it is not matter which PHP is supported, PHP 5.2, not 5.3 or 5.4, why to not use PHP 3 or PHP 4? ;-)