There have been a number of updates on the ADM(Mat) side about that. Reading those, it's a software upgrade of HRMS to the 9.0 version (from 7.something). In theory, it's just a new version of the same software, but I still find word 5.0 easier to use than office 2017, so...
None of it is related to our pay system as near as I can tell which is good, but expect there may be some glitches as they roll the HRMS over for updates. Did a print of my MPRR recently for insurance but I have far more faith in DND IT projects than I do in SSC or PSPC after doing the Phoenix training courses and seeing the ludicrous work flows they have poorly implemented. We generally do a good job with project roll out plans, and I think there is massive scrutiny for any IT project rollout now given what a flaming paper bag phoenix has been.