I have a zimbra open source 4.5.3 version and i want to upgrade it to 5.0.9 version.
First, is that possible?, without to compromise the stability and performance.
What can i do, and what is the best path?
I download all the versions from 4.5.3 to 5.0.9, i have to upgrade from 4.5.3 to 4.5.4 and so on, til i have 5.0.9 up an running
Or i can jump from 4.5.5, and then to 4.5.11, and then to 5.0.0, and this to 5.0.9
Thank you very much,