it seems that anaconda wants that anaconda's upgrade requires a
version that is strictly older than current
ie. one can't upgrade an alpha/bera or even same version
I suggest the following
http://git.fedorahosted.org/git/anaconda.git?p=anaconda.git;a=blob;f=inst...
- return newVer > oldVer and newVer - oldVer <= 2
+ return newVer >= oldVer and newVer - oldVer <= 2