Just want to chime in here because I have seen consistent file system corruption when upgrading to 25.7.1
I did some tests on the same production hardware and ran 2 tests which ended the same. B test started with 24.7 upgrade every version and the up from 25.7 to 25.7.1 caused file system corruption, ending up in a reboot and a broken system.
This is a video of the A test where I just upgraded from a freshly installed 25.7 to 25.7.1 and well you can see the results.
I did some tests on the same production hardware and ran 2 tests which ended the same. B test started with 24.7 upgrade every version and the up from 25.7 to 25.7.1 caused file system corruption, ending up in a reboot and a broken system.
This is a video of the A test where I just upgraded from a freshly installed 25.7 to 25.7.1 and well you can see the results.