git log v3.0.36-rt58..3.0.48-rt72

That's what a source version control system is designed for AFAICT

Thanks for the tip.  I (naively) presumed there were published
changelogs and was looking for them.  Nor did I know the git logs were
limited to releases, and didn't look there because I feared a huge
number of mid-release commits.  Thanks for the pointer.

I've gone through all the commits from 3.0.36-rt58 to 3.0.48-rt72 and
see a few items we need to pull in.  The majority are irrelevant to
our platform/configuration (ALSA, SCSI, x86, etc).  But the few I did
find point to us moving to rt72 when we can.

Thanks,
Pete