The dmd 2.098.0 Windows installer[1] hasn't been signed by the D Language Foundation, as it was the case for the previous releases. While probably just an oversight, it would be good to solve this for the next release, since the SmartScreen window is not the best publicity for D. :-) [1] https://s3.us-west-2.amazonaws.com/downloads.dlang.org/releases/2021/dmd-2.098.0.exe
It should be marked as major, that's a security issue
Still an issue with dmd-2.098.1-beta.1.exe.