TypeScript 1.4 sneak peek: union types, type guards, and more

With TypeScript 1.3 out the door, we’re focused on adding more type system and ECMAScript 6 features to TypeScript. Let’s take a quick look at some of the new features you’ll be able to use in the next release of TypeScript. All these features are live in the master branch on our GitHub repository if… Read more

Announcing TypeScript 1.3

We’re happy to announce the availability of TypeScript 1.3. TypeScript 1.3 includes two new features in the language and a new language service for Visual Studio 2015 that is built on the .NET Compiler Platform (“Roslyn”), Visual Studio’s new language service that provides rich Intellisense. Roslyn makes it much easier to provide a premier editing experience… Read more

TypeScript and the Road to 2.0

When we released TypeScript 1.0 earlier this year, we focused on putting out a language that would help developers really scale their JavaScript projects.  It’s been quite a ride watching what people have done with it, including Mozilla Shumway at 170,000 lines, Walmart stationery, and the rich Microsoft Azure experience, which is now over a million… Read more

Announcing TypeScript 1.1 CTP

Today, we’re making TypeScript 1.1 CTP immediately available for Visual Studio “14” CTP4, Visual Studio 2013, npm, and as a source release.  1.1 CTP is the first release of TypeScript to include the new compiler core redesigned to both perform better and lay the groundwork for future language features.  You can see the real-world improvements in… Read more

New Compiler and Moving to GitHub

Today we’re announcing two changes to the TypeScript project. Introducing the New Compiler The first change we’re making to TypeScript is that we’ve been taking a good, hard look at the compiler performance we had with 1.0.  We knew we could leverage the experience from building the original compiler over the last two years.  This… Read more

Announcing TypeScript 1.0.1

Today, we’re announcing the release of TypeScript 1.0.1. This release addresses user-reported issues around stability, performance, and Visual Studio 2012 compatibility. The upgrade is available as part of the Visual Studio 2013 Update 2, a Visual Studio 2012 power tool, npm package, and as source. We’re also announcing the support plan for TypeScript going forward. We’re… Read more

Announcing TypeScript 1.0

TypeScript 1.0 Today, we’re happy to announce TypeScript 1.0. First, we want to give a big “thank you!” to everyone who has helped us over the last year and a half to meet this goal. Together, we’ve grown a language, tools, and a community around creating large-scale JavaScript applications. To help grow this community further, we’re… Read more

Announcing TypeScript 1.0RC

We’re happy to mark another significant milestone for the TypeScript project with the release of the 1.0 Release Candidate.  Since the first release in October of 2012, the TypeScript language has grown to support generics, which enables rich typing of JavaScript libraries.  Last December, the release focused on better performance and reliability for larger codebases. … Read more