If you're using Semplice 5, find any Semplice updates right on your dashboard in Semplice.
Or check the changelog for your version here:
Semplice 5
Studio: https://www.semplice.com/changelog-v5-studio
Single: https://www.semplice.com/changelog-v5-single
Semplice 4
Studio: https://www.semplice.com/changelog-v4-studio
Single: https://www.semplice.com/changelog-v4-single
Semplice 3
Studio: https://www.semplice.com/changelog-studio
Single: https://www.semplice.com/changelog