php on windows server 2003-quick question

I'm currently running PHP 5.3.6 on Windows 2003. Can I upgrade php or is that version the maximum I can use for Windows 2003?
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Ray PaseurCommented:
You can upgrade, but only to PHP 5.4, IIRC.  Everything you need to know is here:

Important details here:

Currently supported versions of PHP are listed near "Download" on the upper right of the home page:

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PHP 5.4 series will be the last versions to support Windows XP and Windows 2003. We will not provide binary packages for these Windows versions anymore after PHP 5.4.
avirAuthor Commented:
Thanks for the responses. In your opinion, if everything is running okay right now (various wordpress and codeigniter sites), is it worth upgrading to 5.4?
Ray PaseurCommented:
Worth upgrading?  Yes, it is always worth upgrading to the latest software.  That is like changing your oil.  The car may keep running for a while on dirty oil, but eventually the old oil will damage the engine and the results will be much more sudden and costly than a scheduled oil change.  

PHP 5.3 is not supported any more, not even for security fixes.
avirAuthor Commented:
Okay, thanks.
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