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Today, we’re releasing TypeScript 0.9.1.1, a hotfix release of TypeScript 0.9.1.  The 0.9.1.1 release addresses 25 issues discovered by the community and includes fixes for compiler crashes, memory consumption, type system correctness, and more.This release also temporarily adds back in the flags to allow “import x = modu...

We’re happy to announce the release of TypeScript 0.9.1.  With this version we've focused on fit and finish, improving the compiler performance and rounding out the language and ASP.NET support. Improved Performance When we released 0.9.0, we introduced a re-written compiler and language service which scaled better for interactive use cases and s...

We are excited to see the feedback and interest in all the new features that we’ve released with TypeScript 0.9.  We’re already seeing users converting hundreds of thousands of lines to the new version and using the new features in earnest. Today, we’re releasing an update that addresses a few of the highest priorit...

Today, we’re excited to be releasing TypeScript 0.9.0.  This release represents the largest update to TypeScript to date, bringing significant changes to the language, compiler and tools.  These span from highly requested new language features like Generics, to a new compiler infrastructure that lays the foundation for TypeScript to...

Today we’re making an early preview available which showcases some of the new features coming in 0.9.0 preview release.  It’s intended for users who wish to try out these features, begin porting existing applications, and who don’t mind a few rough edges in the compiler and language service along the way.  Users who wish...

We've released a hotfix to the 0.8.3 TypeScript for Visual Studio 2012 plugin.  The 0.8.3 preview release included a broad range of improvements to the TypeScript experience, but it also included an issue that caused editor performance to degrade significantly in some cases.  The hotfix release (0.8.3.1) addresses this issue and...

The upcoming TypeScript 0.9 release will represent the most significant changes to TypeScript since the first public release last October, bringing highly requested new language features as well as a significant re-design of the TypeScript compiler. In this post, we’ll give a first quick look at a few of the top investments for the 0.9 releas...

Today, we're happy to announce the 0.8.3 preview release of TypeScript.  This release adds incremental polish and bugfixes to the TypeScript compiler, language service, and Visual Studio plugin. Compiler Improvements In the 0.8.3 preview release, we fixed a few key issues that improve compiler correctness and performance, including issues with 't...

Starting with release 0.8.2.0, you can now update the TypeScript language services file, the compiled JavaScript that powers most of the TypeScript editor features in Visual Studio. This includes tasks like error reporting, compile-on-save, renaming, go to definition, completion lists, signature help, and others. By updating your TypeScript languag...

When we talk about a type in TypeScript, we mean a collection of things that you can do with a variable (or expression). You might be able to read or write a given property, call a function, use the expression as a constructor, or index into the object. Some objects (like Date) in JavaScript can do nearly all of those! In TypeScript, interfaces are...