Upgrade progression for Mactrack 2.1.1 to latest stable ver?

[rjoshuaw]

Hello all...

I'm on Cacti 8.7e with mactrack 2.1.1. First off, do I need to upgrade to the latest cacti before attempting to to goto mactrack 2.9? Secondly, if I'm on 2.1.1, what is the progression method to get to 2.9? Can I just do a normal install of 2.9 or do I need to do something first. The more detailed the better. Thank you