upgrading mailman

Hello, i need to upgrade to mailman 2.1 beta as it has features that i need, what is best way to acheive this without breaking cpanel?

Also how would i prevent new version being overwritten by future cpanel upgrades?

amnay thanks

 

i still have rh 6.2 on this machine, there is one feature i need in 2.1 to be able to get webumake webmail to work with mailing lists, yes i know we already have webmail but webumake works better for what ineed, automatic signup, user manangment etc.

hope they get 2.1 to stable soon then