I want to upgrade zimbra (OS edition) from this version (4.0.5_GA_518.DEBIAN3.1) to zcs-5.0.0_GA_1869.DEBIAN4.0.
I read on the forum that jholder recommends to go to 4.5 first, which version should I go for here? zcs-4.5.10_GA_1575.DEBIAN3.1?
If so, is this a painless upgrade, or do I have some prep work to do before hand? Thats stage 1 complete :-)
Then I need to go from 4.5.10 to 5.0.0, but the zcs v5 release is for debian 4, which upgrade do I do first, debian to 4.0 or zcs to 5.0.0?
I had a brief look at the docs and searched the forums, but couldn't find anything about 4.0.5 to 4.5.10 upgrade or even to 5.0.0.
any and all help much apprecaited. Needless to say I will have confirmed good backups before starting anything, good docs about this on the wiki.