The numbers in paranthesis is the version of Visual Studio where the API was introduced.
- Async QuickInfo (15.6)
- Async Tool Window (15.6)
- Textmate grammar (15.0)
- Editor command system (15.6)
- AsyncPackage (14.0)
- Task Status Center (15.3)
- AsyncPackage being backwards compatible with VS2013 (12.0)
- New error list API (14.0)
- Editor light bulbs (14.0)
- Custom command line switch support to devenv.exe
- URL protocol handler (open VS when my-protocol://links/are/clicked)