gts is Google's TypeScript style guide, and the configuration for our formatter, linter, and automatic code fixer. 

The popular pluggable and configurable linter tool for identifying and reporting on patterns in your code. Node 8 support is dropped.

Google's JavaScript Style Guide
The first step to improving your JavaScript game is to adopt a consistent coding style. 

a fresh re-write of the TypeScript Handbook is out of beta and is now our website’s primary resource for learning TypeScript! 

JavaScript and TypeScript support enhancements include a reworked Rename refactoring (which can now rename files corresponding to TypeScript types), granular formatter settings, and full support for TypeScript 1.8. 

In order to avoid bifurcating the linting tool space for TypeScript, we therefore plan to deprecate TSLint and focus our efforts instead on improving ESLint’s TypeScript support. 

Deno is a new runtime for executing JavaScript and TypeScript outside of the web browser. 

This release brings many new features, while aiming to make TypeScript smaller, simpler, and faster. We’ve implemented the new decorators standard, added functionality to better support ESM projects in Node and bundlers, provided new ways for library authors to control generic inference, expanded our JSDoc functionality, simplified configuration, and made many other improvements. 

We’ve got a lot of great features in TypeScript 3.7, including:

Optional Chaining
Nullish Coalescing
Assertion Functions
Better Support for never-Returning Functions
--declaration and --allowJs
(More) Recursive Type Aliases
The useDefineForClassFields Flag and The declare Property Modifier
Build-Free Editing with Project References
Uncalled Function Checks
Flatter Error Reporting
// @ts-nocheck in TypeScript Files
Semicolon Formatter Option
Website and Playground Updates
Breaking Changes
  DOM Changes
  Class Field Mitigations
  Function Truthy Checks
  Local and Imported Type Declarations Now Conflict
  API Changes