I am currently running the open source edition 5.0.6 on RHEL5 64 bit and would like to upgrade to the latest version. What is the suggested order for upgrading? Can we skip version 6.x.x and go directly to version 7.1.3 or is it better to install the versions sequentially?

We have never upgraded before and I don't want to screw this up. Any advice would be greatly appreciated.