It's amazing to me that Microsoft came up with a spec that seems to have been so effective and very well missing from editors to get a bit of a bump in regards to not having the burden of reimplementing the same handling for different languages. This plugin is awesome because it reuses some of D's already existing tech that predates LangServ but now that there's an open standard for all languages focus can be made towards LangServ. D remains one of my favorite languages. My only complaint is tooling support, which is improving thanks to efforts like LangServ.