SDK 7.4.3 - did 7.4.2 not support Fenix8 / Enduro?

Got a surprise this morning.  Went to build something for Fenix 8 using 7.4.2 and got an error about needing 5.0.1.  That's odd, since I already built and deployed apps using 7.4.2.

Checked SDK manager and I see this unusual status.  Did 7.4.2 get pulled?  Also looks like 7.4.1 got pulled.  And 7.4.3 backdated?  (I did receive a "release candidate" 7.4.2 to assist the Garmin team, so that's why there are two 7.4.2s in my history).

Here are the release notes.