Microsoft has announced the release of TypeScript 5.6 Beta.

Announcing TypeScript 5.6 Beta

Today we are excited to announce the availability of TypeScript 5.6 Beta.

To get started using the beta, you can get it  through NuGet, or through npm with the following command:

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npm install -D typescript@beta

Here’s a quick list of what’s new in TypeScript 5.6!

• Disallowed Nullish and Truthy Checks
• Iterator Helper Methods
• Strict Builtin Iterator Checks (and --strictBuiltinIteratorReturn)
• Support for Arbitrary Module Identifiers
• The --noUncheckedSideEffectImports Option
• The --noCheck Option
• Allow --build with Intermediate Errors
• Region-Prioritized Diagnostics in Editors
• Search Ancestor Configuration Files for Project Ownership
• Notable Behavioral Changes
  • lib.d.ts
  • .tsbuildinfo is Always Written
  • Respecting File Extensions and package.json from within node_modules
  • Correct override Checks on Computed Properties

Announcing TypeScript 5.6 Beta - TypeScript