⚠️ Breaking Change
Impact Score: 7/10
TypeScript 2.3
Source available — automated, not human-reviewed
Component: typescript · Channel: stable. Automated analysis, not a compatibility certification. How this works.
Analysis updated: 2026-11-01.
Breaking-change evidence from the source
For breaking changes, check out the [Breaking changes in TypeScript 2.3](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#typescript-23) page.
⚡ Executive Summary (TL;DR)
TypeScript v2.3.1. Source highlight: For release notes, check out the release announcement
Who Does This Impact? (Role-Based Analysis)
💻 Software Engineers & Devs
Check the source notes against the package and APIs you use before upgrading.
📊 Product & Engineering Leads
Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.
⚙️ DevOps & Security
Verify the target version, runtime requirements and rollback procedure in the official documentation.
⚠️ Breaking Changes & Deprecations (1)
- For breaking changes, check out the [Breaking changes in TypeScript 2.3](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#typescript-23) page.
📄 View Raw Release Notes (Original Developer Log)
For release notes, check out the [release announcement](https://blogs.msdn.microsoft.com/typescript/2017/04/27/announcing-typescript-2-3/)
For new features, check out the [What's new in TypeScript 2.3](https://github.com/Microsoft/TypeScript/wiki/What's-new-in-TypeScript#typescript-23) page.
For breaking changes, check out the [Breaking changes in TypeScript 2.3](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#typescript-23) page.
For the complete list of fixed issues, check out the issues fixed in [TypeScript 2.3 RC](https://github.com/Microsoft/TypeScript/issues?q=is%3Aissue+milestone%3A%22TypeScript+2.3%22+label%3A%22fixed%22+) and [after TypeScript 2.3 RC](https://github.com/Microsoft/TypeScript/issues?q=is%3Aissue+milestone%3A%22TypeScript+2.3.1%22+label%3A%22fixed%22+).
Download:
- [npm](https://www.npmjs.com/package/typescript)
- [Visual Studio 2015 plugin](https://www.microsoft.com/en-us/download/details.aspx?id=48593)
- [NuGet package](https://www.nuget.org/packages/Microsoft.TypeScript.MSBuild/2.3.1)
Special thanks to all contributors to this release:
* Akinmade Bond
* Anders Hejlsberg
* Andy Hanson
* Argelius Andreas
* @arjunyel
* Artem Roshko
* Arthur Ozga
* Bill Ticehurst
* Christian Silver
* Christophe Vidal
* @cedvdb
* Daniel Lehenbauer
* Daniel Rosenwasser
* Diullei Gomes
* @e-cloud
* Erik McClenney
* @falsandtru
* Hendrik Liebau
* Herrington Darkholme
* Igor Novozhilov
* James Henry
* Jason Jarrett
* Jason Ramsay
* Josh Goldberg
* K. Preißer
* Kagami Sascha Rosylight
* Kanchalai Tanglertsampan
* Klaus Meinhardt
* Logan Mzz
* Magnus Hiie
* Matt Bierner
* Matt McCutchen
* Mike Busyrev
* Mine Starks
* Mohamed Hegazy
* Natalie Coley
* Nathan Shively-Sanders
* Nico Kemnitz
* Nicolas Henry
* Oleg Mihailik
* Ron Buckton
* Ryan Cavanaugh
* Soo Jae Hwang
* Tuure Savuoja
* Vadi Taslim
* Vincent Bel
* Vladimir Matveev
* Zhengbo Li