Unchanged release notes?

[milleron]

I took delivery June 30, and there was a new software update installed that night. I think it was 17.26.17. Eight days later, I was notified of another one. 17.26.76 installed last night, and I believe the release notes are unchanged (no longer have easy access to the previous notes for comparison) -- auto display brightness and perpendicular parking. Is that standard practice if the new software is simply to correct a minor bug rather than one that changes or adds features?
Also, I've been unable to find it, but is there a page at Tesla.com that shows release notes for all versions?

 

[DOCAL]

It's normal, unless there's new features or something of note, you can see the same release notes multiple times.

 

[Patrick W]

If anyone really wants them I have release notes for all of the updates I've received. For a list check Tesla Firmware Upgrade Tracker Web App where I'm listed as Patrick W.