TypeScript 4.0 is supposed to be released in August 2020, and one of the biggest changes in this release will be variadic tuple types. And even though his feature is hot of the press at the time of this writing, it’s worth checking out and see what we can do with it. Note that stuff here might be subject to change, so be cautious! I will try to keep this page up to date until 4.0 is in RC or released.