I've installed SQL Server 2016 Developer Edition, because Microsoft states:
SSDT database projects in Visual Studio 2017 currently support up to SQL Server 2016. Support for SQL Server 2017 will be coming soon in a Visual Studio 2017 update.
My question is: Should I install exclusively SSMS 2016 or SQL Server Management Studio 17.1 is compatible with SQL Server 2016 Developer Edition as well ?
Thank you @scsimon for giving me an air of confidence.
I've installed SSMS 2017.1. It's compatible with SQL Server 2016, it works like a charm and, to be honest, it is much faster then SSMS 2016.