⚠️ Breaking Change
Impact Score: 7/10
TypeScript 2.1.4
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 2.1](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#typescript-21) page.
⚡ Executive Summary (TL;DR)
TypeScript v2.1.4. 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 2.1](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#typescript-21) page.
📄 View Raw Release Notes (Original Developer Log)
For release notes, check out the [release announcement](https://blogs.msdn.microsoft.com/typescript/2016/12/07/announcing-typescript-2-1/).
For new features, check out the [What's new in TypeScript 2.1](https://github.com/Microsoft/TypeScript/wiki/What's-new-in-TypeScript#typescript-21).
For breaking changes, check out the [Breaking changes in TypeScript 2.1](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#typescript-21) page.
For the complete list of fixed issues, check out the [fixed issues query for TypeScript 2.1](https://github.com/Microsoft/TypeScript/issues?q=is%3Aissue+milestone%3A%22TypeScript+2.0%22+label%3A%22fixed%22+) and [TypeScript 2.1.4](https://github.com/Microsoft/TypeScript/issues?q=is%3Aissue+milestone%3A%22TypeScript+2.1.4%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) (requires [VS 2015 Update 3](https://msdn.microsoft.com/en-us/library/mt752379.aspx) to be installed first)
- [NuGet package](https://www.nuget.org/packages/Microsoft.TypeScript.MSBuild/2.1.4)
Special thanks to all contributors to this release:
- Aaron Holmes
- Akshar Patel
- Alexander Rusakov
- Ali Sabzevari
- Aliaksandr Radzivanovich
- Anatoly Ressin
- András Parditka
- Andrej Baran
- Anton Khlynovskiy
- Asad Saeeduddin
- Ben Mosher
- Charly POLY
- Christophe Vidal
- Cotton Hou
- Dafrok Zhang
- Daniel Hollocher
- David Kmenta
- Dom Chen
- Elisée Maurer
- Emilio García-Pumarino
- Ethan Resnick
- Fabian Cook
- @falsandtru
- Franklin Tse
- Gabe Moothart
- Godfrey Chan
- Guilherme Oenning
- Herrington Darkholme
- Ivo Gabe de Wolff
- Jakub Młokosiewicz
- Jeffrey Morlan
- Joey Wilson
- Jonathon Smith
- Josh Abernathy
- Juan Luis Boya García
- Justin Bay
- Justin Johansson
- Kagami Sascha Rosylight
- Kevin Lang
- Lucien Greathouse
- Lukas Elmer
- Marin Marinov
- Marius Schulz
- Martin Vseticka
- Mattias Buelens
- Michael
- Michael Bromley
- Myles Megyesi
- Nicolas Henry
- Noah Chen
- Omer Sheikh
- Paul Jolly
- Perry Jiang
- Peter Burns
- Richard Knoll
- Richard Sentino
- Robert Coie
- Rohit Verma
- Rostislav Galimsky
- Sam El-Husseini
- Slawomir Sadziak
- Sudheesh Singanamalla
- Thomas Loubiou
- Tim Lancina
- Tim Perry
- Torben Fitschen
- Vidar Tonaas Fauske
- Viktor Zozulyak
- Wesley Wigham
- York Yao
- @yortus
- Yuichi Nukiyama