I must be looking right over this. I can't find anything that defines QA Releases VS other releases, or even what QA is. The closest I find is "Quality Assurance". I guess my goal for this is a 64-bit version PHP for Windows, which DOES exist as a QA 5.5 release, but not under the downloads as a 5.5 release. It says there are none. Can anyone help define what the QA is? Thanks in advance.