Upgrade from 1.5.0p23 to 1.6.x - questions

I have a stable multi-site setup running 1.5.0p23.
I’d like to test out 1.6.x, but believe I read that a site cannot be downgraded if going to 1.6.x

some questions

  • Any known issues/caveats upgrading to 1.6.0?

  • Would it be better to upgrade from current 1.5.0.p23 to 1.6.0 and then directly to 1.6.0p8? or should I do incremental upgrades between 1.6.0 and 1.6.0p8 ?

If you have not installed many interface modifications or inventory plugins the upgrade should be no pain.
Interface modifications and inventory plugins needs some code modifications.
If you want to test the upgrade - make a copy if your main site and try the upgrade with the copied site.

You can upgrade directly to p8. I would only do incremental upgrades if there is a major version in between like upgrade from 1.2.8 to 1.6.