Upgrading from 5.10.7 to Gnus CVS

[Neil Woods]

I recently installed Gnus CVS (No Gnus 0.3) on one of my machines on my
local network. It was a new installation, and everything works fine.

I would like to now upgrade to Gnus CVS on the machine I am currently
using. I have read the GNUS-NEWS file and it mentions that downgrading
is generally unsafe, so obviously I want to make sure the upgrade
succeeds.

I am currently using the latest Gnus, from Debian unstable.

Are there any caveats I should be aware of before the upgrade?

Should I remove my ~/.newsrc.eld file before proceeding?

Thanks for any advice.
-- 
Neil