Version mismatch warnings
Logging in with a Gem version that is different from the Stone's version is risky. Previously, this mismatch was ignored and invisible for dot-dot version; that is when only the final digit segment of N.N.N versions mismatched.
With v3.6.6 and 3.7 and later, all mismatches in the version are treated as a version mismatch.
With a version mismatch, logins other than SystemUser are disallowed. SystemUser logins have warning message printed, but may log in.
Workaround
You should log in using the correct Gem version.
For a patch release in which there are no changes in the image, and it is allowed to skip the upgradeImage step, you may execute the following, which updates the Stone's version in the extents to match the executable version.
SystemRepository _setVersion
Last updated: 9/15/23