I just did a build using EA3 apache 2.2 & php 5.2.4. Build went fine, the only issue I had after the build was that apache would not start. Zend Optimizer had to be upgraded for it to work. Also I noticed that some of the customisation in the httpd.conf file has been lost. I had some Proxy directives manually added that got cleared. Other than that everything went very smoothly.