This is the SQL 2016 RTM release.
It includes Visual Studio 2015 detection and installation.
It has no code changes from previous 1.6 releases, just adding SQL 2016 and Visual Studio 2015 support.
Full support for project SQL Server version targeting changes (between SQL 2012, SQL 2014 and SQL 2016) is included.
Please download the x64 of x32 file based on the bitness of your SQL Server installation.