It was 2.62.2+170303 rollout via Comfortupdater for some time.
There is still no official statement. My guess is that the 2.62.2+170303 was a mistake.
And the change back to February raised issues with the ComfortUpdater since a "older" build by buildnumber was then a "newer" build in real.
www.limesurvey.org/forum/installation-a-...ild_not_found#148688
So they might stick to the "future" buildnumber for some releases to ensure updates via Comfortupdater.