[When the Typescript 2.3 will be available in VS2017?
Now that the VS2017.2 is released, the installer for VS2015 should also work for VS2017. The site does not mention about this, though.
Am I supposed to do anything particular to make 2.3 work with VS17? I installed the VS15 package and restarted the IDE but that changed nothing.
Open Tools->Options->Text Editor->JavaScript/TypeScript->Intellisense and you should see "Use TypeScript version" which should be set as 2.3. This should be automatically set but it seems sometimes not.
You should install Typescript SDK for VS2017 from https://www.microsoft.com/en-us/download/confirmation.aspx?id=55258
I've installed the Typescript SDK, changed the Tools->Options->Text Editor->JavaScript/TypeScript>Intellisense to 2.3 version, but when I check the version of typescript in the About screen of VS, I still have 2.2.2 version


Try something specific with TS 2.3, for example:
class Component<P, S = object> { }
If this does not show error then you have TS 2.3.
this does not show error
Then you have TS2.3, regardless of what About page says 🎉
Thanks to all.
I don't know how that is critical, but VS 2017 ignore the TypeScriptToolsVersion setting of csproj with ToolsVersion="14.0".
@ifle Visual Studio 2017 15.3 will respect your TypeScriptToolsVersion setting in Intellisense as well.
Forgot to mention, 15.3 also includes TypeScript 2.3 by default.
Most helpful comment
Open Tools->Options->Text Editor->JavaScript/TypeScript->Intellisense and you should see "Use TypeScript version" which should be set as 2.3. This should be automatically set but it seems sometimes not.