... Visual Studio supports native multi-targeting and round-tripping. And we definitely want to shine more light on it:
Native multi-targeting is the ability of the latest IDE to build using toolsets installed by previous versions of Visual Studio (VS 2008 and up).
Round-tripping is the ability of the latest IDE to load projects created by a previous IDE version without making any changes to the project assets (VS 2010 projects and up), thus allowing it to load back in the previous IDE too.
What I'm unclear about is whether a project can be configured so that it will load without conversion in VS-2015 - so it still can be used with VS-2010 - but it should use the VS-2015 (v140) platform toolset in VS-2015 and the v100 one when loaded in VS-2010.
Since by default a project doesn't contain the <PlatformToolset> setting it should work, right?
