Zen 1.5 Requires PHP version 5.3 to run. My hosting provider is in the process of upgrading from 5.2 to 5.3, but is still 30-60 days out. In the mean time I'd like to begin transferring my site over and do testing so that when my host flips the switch, I can do so as well. Zen 1.5 does not let you install if you are running php 5.2
I have installed zen 1.5 in a test environment (different server) and is up and running. I've copied that site back to my production server (not live) and done testing it under php 5.2 as and far as I can tell, all works fine. I don't plan on making this live until my host makes the official switch, but I would prefer to do all my testing on the same server that it will live on as this is on a cloud hosting provider and hosting is handled a bit differently than standard shared hosting.
So to the point, what errors or missing functionality will i experience running on 5.2 versus 5.3. Once again, this is for testing only, not production.