Erin Stellato announces an “above-the-fold” change:
In SSMS 20 we have made changes to the connection dialog. In the screenshot below, you will see the Login and Connection Properties pages for the connection dialogs for SSMS 19 and 20 compared side-by-side.
Moving the Connection Security section to the Login tab (and it presumably showing up without needing to select Options) is a good change. It’s also interesting to see SSMS support Mandatory encryption, a part of Tabular Data Stream (TDS) 8.0 that Azure Data Studio supports but SSMS (and most other SQL Server-related things) don’t yet.