Questions re prototype.php.net

Hi all, I had a few questions regarding development for the new php.net site. Sorry if these have been answered before or if they are noobish, I just want to be clear about these things before I submit "wrong" patches. 1) Is there a PHP version limit? Or are all mirrors required to upgrade to latest/greatest version in order to mirror the site? 2) Are there any coding guidelines to follow when creating patches (in terms of coding style, brackets etc); can this be found online somewhere? 3) Is there an overall "plan", or any architecture guidelines? From first glance, the code seems pretty loosely organised (although that could be because I'm just not used to the way it's organised!), and I noticed that someone was recently criticised for trying to encourage a separation of logic/presentation - is there any kind of documentation that governs decisions like these, or do we just submit patches and await feedback? Thanks for your help, I'm looking forward to getting started, - Nils