Upgrade from 3.0 to 3.5 best practice

I’d like some tips regarding the best procedure for upgrading from version 3.0 to version 3.5. I’ve downloaded the installer for 3.5 and I’d like to know if I should uninstall version 3.0 before installing 3.5.

Also, after installing 3.5, do I simply direct the library to my existing audio content folder?

Are there any other tips for a happy upgrade?

Many thanks!