If the build number is the same e.g. "42312", the only difference is the label "release" instead of "beta".
Thank you for specifying this. The release notes said it fixes lost of signal in performance mode while changing slots. Exactly my problem. So it seems the fix is not yet complete. This is scary because the reboot takes 90 seconds so if this happennes during a live gig it's not a nice thing.
Maybe I should return to a previous stable OS version. That would be the 8.7.10?