Not sure where to post this - move somewhere else if you want - , but I just noticed that both the discovery and relay server v1.2.2 are printing missing build information on start (both debian and github releases):
Started Syncthing Discovery Server.
stdiscosrv (go1.12.9 linux-amd64) @ 1970-01-01 00:00:00 UTC
Started Syncthing Relay Server.
main.go:149: strelaysrv (go1.12.9 linux-amd64) @ 1970-01-01 00:00:00 UTC`
The older releases (v1.0.1) print correct data here, for example
stdiscosrv v1.0.1 (go1.11.5 linux-amd64) email@example.com 2019-01-18 10:34:18 UTC.
Other than the missing info, the binaries work fine.