I've been tasked with maintenance on an aging PPC installation of Zimbra 5.0.11 GA (network edition). (Running Tiger btw.)
All the reading I've done says that 4.5.11 was the last supported version on this platform (PPC anyway). Therefore, I was surprised to find 5.0.11 running on it. It begs the question - how far up the line towards modern can I go on the PPC machine?
I see that the release notes for 5.0.11 have the same "PPC is no longer supported" as 5.0.20. What's the last one that will install properly? Even the project portal page (http://pm.zimbra.com/ here) lists PPC, though marks it as "not supported in the next major version."