‫TypeScript 2.7 منتشر شد

- Stricter class property checks
- Definite assignment assertions
- Easier ECMAScript module interoperability
- unique symbol types and const-named properties
- Cleaner output in --watch mode
- Prettier --pretty output
- Numeric Separators
- Fixed Length Tuples
- in operator narrowing and accurate instanceof
- Smarter object literal inference