Tracks adopting TypeScript 3.6 as our bundled TypeScript version See [3.6.0](https://github.com/Microsoft/TypeScript/issues?q=is%3Aopen+is%3Aissue+milestone%3A%22TypeScript+3.6.0%22) and [3.6.1](https://github.com/Microsoft/TypeScript/issues?q=is%3Aopen+is%3Aissue+milestone%3A%22TypeScript+3.6.1%22) milestones for what is being delivered on the TS side