Microsoft Developer Blogs
devblogs.microsoft.com › dev blogs › typescript › announcing typescript 4.9
Announcing TypeScript 4.9 - TypeScript
November 15, 2022 - Here’s a quick list of what’s new in TypeScript 4.9! ... Since the Release Candidate, no changes have been made to TypeScript 4.9.
npm
npmjs.com › package › typescript
typescript - npm
Latest version: 5.9.3, last published: 2 months ago. Start using typescript in your project by running `npm i typescript`. There are 61824 other projects in the npm registry using typescript.
» npm install typescript
Published Sep 30, 2025
Version 5.9.3
Author Microsoft Corp.
Repository https://github.com/microsoft/TypeScript
Homepage https://www.typescriptlang.org/
programming language, superset of JavaScript that compiles to JavaScript
Factsheet
Paradigm Multi-paradigm: functional, generic, imperative, object-oriented
Family ECMAScript
Designed by Microsoft,
Anders Hejlsberg,
Luke Hoban
Anders Hejlsberg,
Luke Hoban
Paradigm Multi-paradigm: functional, generic, imperative, object-oriented
Family ECMAScript
Designed by Microsoft,
Anders Hejlsberg,
Luke Hoban
Anders Hejlsberg,
Luke Hoban
Wikipedia
en.wikipedia.org › wiki › TypeScript
TypeScript - Wikipedia
1 week ago - While 4.0 did not introduce any breaking changes, it added language features such as Custom JSX Factories and Variadic Tuple Types. TypeScript 5.0 was released on 16 March 2023 and included support for decorators.
GitHub
github.com › microsoft › typescript › releases
Releases · microsoft/TypeScript
420ff06 · Compare · Filter · Loading · There was an error while loading. Please reload this page. View all tags · TypeScript 5.8 RC Pre-release · Pre-release · For release notes, check out the release announcement. fixed issues query for Typescript 5.8.0 (Beta). fixed issues query for Typescript 5.8.1 (RC). Downloads are available on: npm · Assets 3 · Loading · There was an error while loading. Please reload this page. 9 people reacted ·
Author microsoft
GitHub
github.com › microsoft › TypeScript › issues › 50457
TypeScript 4.9 Iteration Plan · Issue #50457 · microsoft/TypeScript
April 22, 2022 - ... gantt dateFormat YYYY-MM-DD TypeScript 4.8 Stabilization Period : 2022-08-05, 2022-08-25 TypeScript 4.9 Beta Development : 2022-08-05, 2022-09-16 TypeScript 4.9 RC Development : 2022-09-16, 2022-10-28 TypeScript 4.9 Stabilization Period ...
Published Aug 25, 2022
TypeScript
typescriptlang.org › docs › handbook › release-notes › typescript-4-9.html
TypeScript: Documentation - TypeScript 4.9
TypeScript 4.9 supports an upcoming feature in ECMAScript called auto-accessors.
GitHub
github.com › microsoft › TypeScript › wiki › Roadmap
Roadmap · microsoft/TypeScript Wiki · GitHub
This page outlines specific features and fixes that are scheduled or planned for given releases. The 6-month roadmaps that outlines focus areas of work can be viewed for ... See the 5.0 Iteration Plan for more details. ... See the 4.9 Iteration Plan for more details.
Author microsoft
Microsoft Developer Blogs
devblogs.microsoft.com › dev blogs › typescript › announcing typescript 4.9 beta
Announcing TypeScript 4.9 Beta - TypeScript
September 23, 2022 - Today we’re announcing our beta ... -D typescript@beta You can also get editor support by Downloading for Visual Studio 2022/2019 Following directions for ......
Microsoft Developer Blogs
devblogs.microsoft.com › dev blogs › typescript › announcing typescript 4.9 rc
Announcing TypeScript 4.9 RC - TypeScript
November 1, 2022 - Nearer term, we’ll be releasing TypeScript 4.9 stable in the next few weeks – specifically, our target is around November 15th, 2022. To make sure we didn’t miss anything, we would appreciate it greatly if you tried TypeScript 4.9 RC out ...
Twitter
twitter.com › leeerob › status › 1563540593003106306
Code example of upcoming TypeScript 4.9 changes ...
JavaScript is not available · We’ve detected that JavaScript is disabled in this browser. Please enable JavaScript or switch to a supported browser to continue using twitter.com. You can see a list of supported browsers in our Help Center · Help Center · Terms of Service Privacy Policy ...
GitHub
github.com › microsoft › TypeScript › issues › 51362
TypeScript 5.0 Iteration Plan · Issue #51362 · microsoft/TypeScript
September 11, 2022 - Date · Event · November 15th · TypeScript 4.9 Release · January 20th · Create 5.0 Beta (5.0.0) Build for Testing · January 24th · TypeScript 5.0 Beta Release · February 24th · Create 5.0 RC (5.0.1) Build for Testing · February 28th ...
Published Oct 31, 2022
Microsoft Developer Blogs
devblogs.microsoft.com › dev blogs › typescript › announcing typescript 5.9
Announcing TypeScript 5.9 - TypeScript
August 1, 2025 - Today we are excited to announce the release of TypeScript 5.9! If you’re not familiar with TypeScript, it’s a language that builds on JavaScript by adding syntax for types. With types, TypeScript makes it possible to check your code to avoid bugs ahead of time.