First number of the file line is the size of the executable. This can be used as a good, but not perfect, check if the version you have downloaded is actually the expected version. After the file lines are comments and a list of bugs these releases fix. All higher level releases contain the fixes from the previous releases.
This is the initial setup for the distribution and versioning
Fixed Bug 38, Installing Bliss does not associate ADF or WAV with MeV
Moved the beta branch of 10 March 2007 to the Release branch