The TypeScript team announced the ... is that rest elements can occur anywhere in a tuple – not just at the end! Beyond this example, the type inference process for rest parameters and rest ...

Working with types in arrays and tuples One problem in earlier releases ... There are some breaking changes in TypeScript 4.0: For example, you can no longer use properties to override accessors ...

Other highlights of TypeScript 4.0 include Variadic Tuple Types, Labeled Tuple Elements, Class Property Inference from Constructors, Short-Circuiting Assignment Operators, Custom JSX Factories, speed ...

Next TypeScript release, due February 25, will support a limited form of checking against conditional and indexed acces types in return statements. Microsoft has moved TypeScript 5.8 into the beta ...