Our server (CentOS 6.2) is failing PC compliance audits on PHP 5.3. I suspect patches have covered the vulnerabilities and the security audit service is happy to accept logs to show these and then sign off as OK...
But they require us to submit these quarterly and it's a pain... we are also unable to upgrade some of our CMS frameworks (XOOPS, Zen Cart) until we move up to a later version of PHP.
PhP 5.4.* is stable... but then we see they just announced 2 days ago that PHP 5.5.13 is stable.
I'm planning to engage Tier 3 Engineering/Linux RedHat/CentOS expert at GoGrid to do the upgrade.
Before I do I'm looking to understand/decide:
1) Are there issues with CentOS 6.2 and upgrading to PHP 9.5.*
2) Would it be better to not be too aggressive and just upgrade to 5.4.* for now? I always worry that not going to the latest version will mean we will be forced to upgrade again within a few months. I know that late last year there were still issues with PHP 5.5.* but as of July 27th it is rated as "stable."