Ye' old general discussion board. Basically, for everything that isn't covered elsewhere. Come here to shoot the breeze, shoot your mouth off, or whatever suits your fancy. This forum is not for asking programming related questions.
The announcement for 5.1.3 has therefore been removed from php.net - basically 5.1.3 is being "quietly" retracted though its still listed on the Downloads page. Chris Shiflett's blog notes there is a 5.1.4 download now available from local mirrors but no announcement or download page listing has been published as yet. It does however exist - It's sitting here on my desktop...