This has been a great week as VS2017 has finally got its RTM version. Unfortunately, for some developers news aren't that great.
It seems the new VS drops the support for the Silverlight:
Silverlight projects are not supported in this version of Visual Studio. To maintain Silverlight applications, continue to use Visual Studio 2015.
Great. Note, though, that Silverlight 5 support lasts till 2021.
This effectively means that starting from now, till 2021, people will have to stick with VS2015 for some projects, despite VS2017, VS2019, VS2021 or any other newer version is released.
Nice one, Microsoft!