[ATrpms-users] Mythtv 0.21 question

[Jeffrey J. Kosowsky]

I notice that yum update is now installing mythtv-0.21 as a stable
package which leads me to two questions:

1. Can I expect the upgrade from 0.20 to 0.21 to go smoothly or will
   there potentially be some bugs, quirks, or potential performance
   degrades? (my graphics card & processor are already marginal on HD
   playback) 

   I don't want to run the risk of messing up my recording/playback of
   shows if there are still bugs being ironed out in the transition or
   if there are performance issues.

2. I noticed that new libmyth-0.21 packages are installed but it
   doesn't seem like the 0.20 versions are removed. Should I just do
   that manually using "rpm -e"?

Thanks,
Jeff