The major thing fixed in the service release is merging the two bundles from the 3.0.0 release into one. A smaller fix is printing the result summary directly in the log of a maven build. Previously the result summary was dependent on parsing the junit xml based file.
If the TCK bundle is found to be correct, we can initiate its promotion.
I just tested it on GlassFish 7.0 M6, where it passes.