Daniel Rosenwasser

Senior Program Manager, TypeScript

Daniel Rosenwasser is the program manager of the TypeScript team. He has a passion for programming languages, compilers, and great developer tooling.

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Announcing TypeScript 5.3

November 20th, 2023
Today we're excited to announce the release of TypeScript 5.3! If you're not familiar with TypeScript, it's a language that adds type syntax to JavaScript to bring type-checking. Type-checking can catch all sorts of issues like typos and forgetting to check for and . But types go beyond type-checking - the same analyses of TypeScript's ...

Announcing TypeScript 5.3 RC

November 3rd, 2023
Today we're excited to announce our Release Candidate of TypeScript 5.3! Between now and the stable release of TypeScript 5.3, we expect no further changes apart from critical bug fixes. To get started using the RC, you can get it through NuGet, or through npm with the following command: Here's a quick list of what's new in TypeScript 5.3...

Announcing TypeScript 5.3 Beta

October 3rd, 2023
Today we are excited to announce the availability of TypeScript 5.3 Beta. To get started using the beta, you can get it through NuGet, or through npm with the following command: Here's a quick list of what's new in TypeScript 5.3! Import Attributes TypeScript 5.3 supports the latest updates to the import ...

Announcing TypeScript 5.2

August 24th, 2023
Today we're excited to announce the release of TypeScript 5.2! If you're not familiar with TypeScript, it's a language that builds on top of JavaScript by making it possible to declare and describe types. Writing types in our code allows us to explain intent and have other tools check our code to catch mistakes like typos, issues with and...

Announcing TypeScript 5.2 RC

August 9th, 2023
Today we're excited to announce our Release Candidate of TypeScript 5.2! Between now and the stable release of TypeScript 5.2, we expect no further changes apart from critical bug fixes. To get started using the RC, you can get it through NuGet, or through npm with the following command: Here's a quick list of what's new in TypeScript 5.2...

Announcing TypeScript 5.2 Beta

June 30th, 2023
Today we are excited to announce the availability of TypeScript 5.2 Beta. To get started using the beta, you can get it through NuGet, or through npm with the following command: Here's a quick list of what's new in TypeScript 5.2! Declarations and Explicit Resource Management TypeScript 5.2 adds support for the ...

Announcing TypeScript 5.1

June 1st, 2023
Today we're excited to announce the release of TypeScript 5.1! If you're not yet familiar with TypeScript, it's a language that builds on JavaScript by adding constructs called types. These types can describe some details about our program, and can be checked by TypeScript before they're compiled away in order to catch possible typos, logic ...

Announcing TypeScript 5.1 RC

May 18th, 2023
Today we're excited to announce our Release Candidate of TypeScript 5.1! Between now and the stable release of TypeScript 5.1, we expect no further changes apart from critical bug fixes. To get started using the RC, you can get it through NuGet, or through npm with the following command: Here's a quick list of what's new in TypeScript 5.1...
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Announcing TypeScript 5.1 Beta

April 18th, 2023
Today we're announcing our beta release of TypeScript 5.1! To get started using the beta, you can get it through NuGet, or through npm with the following command: Here's a quick list of what's new in TypeScript 5.1! Easier Implicit Returns for -Returning Functions In JavaScript, if a function finishes running ...

Announcing TypeScript 5.0

March 16th, 2023
Today we're excited to announce the release of TypeScript 5.0! This release brings many new features, while aiming to make TypeScript smaller, simpler, and faster. We've implemented the new decorators standard, added functionality to better support ESM projects in Node and bundlers, provided new ways for library authors to control generic ...