This release brings in better handling for the JIT status.
Sometimes JIT can be disabled even if you've for the opcache.jit value set to enable it. Now the opcache-gui will make it easier to see if JIT is enabled or not, and if not give a probably reason why. This is shown in the 'General info' section.
If JIT is disabled for any reason, the JIT memory stats will no longer be shown. This was always meant to happen, but the check for JIT being enabled or not didn't take the outside reasons for disabling JIT into consideration.
Full Changelog: 3.5.3...3.5.4