β οΈ Breaking Change
Impact Score: 7/10
TypeScript 3.0
Source available β automated, not human-reviewed
Component: typescript Β· 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 3.0](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#typescript-30) page.
β‘ Executive Summary (TL;DR)
TypeScript v3.0.1. Source highlight: For release notes, check out the release announcement
Who Does This Impact? (Role-Based Analysis)
π» Software Engineers & Devs
Check the source notes against the package and APIs you use before upgrading.
π Product & Engineering Leads
Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.
βοΈ DevOps & Security
Verify the target version, runtime requirements and rollback procedure in the official documentation.
β οΈ Breaking Changes & Deprecations (1)
- For breaking changes, check out the [Breaking changes in TypeScript 3.0](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#typescript-30) page.
π View Raw Release Notes (Original Developer Log)
For release notes, check out the [release announcement](https://blogs.msdn.microsoft.com/typescript/2018/07/30/announcing-typescript-3-0/)
For new features, check out the [What's new in TypeScript 3.0](https://github.com/Microsoft/TypeScript/wiki/What's-new-in-TypeScript#typescript-30).
For breaking changes, check out the [Breaking changes in TypeScript 3.0](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#typescript-30) page.
For the complete list of fixed issues, check out the issues fixed in [TypeScript 3.0 RC](https://github.com/Microsoft/TypeScript/issues?q=is%3Aissue+milestone%3A%22TypeScript+3.0%22+label%3A%22fixed%22+) and [after TypeScript 3.0 RC](https://github.com/Microsoft/TypeScript/issues?q=is%3Aissue+milestone%3A%22TypeScript+3.0.1%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)
- [Visual Studio 2017](https://www.microsoft.com/en-us/download/details.aspx?id=55258) ([Select new version in project options](https://github.com/Microsoft/TypeScript/wiki/Updating-TypeScript-in-Visual-Studio-2017))
- [NuGet package](https://www.nuget.org/packages/Microsoft.TypeScript.MSBuild/3.0.1)
Special thanks to all contributors to this release:
* Alexander Tarasyuk
* Anders Hejlsberg
* Andrew Casey
* Andy Hanson
* Armando Aguirre
* Benjamin Lichtman
* Dan Freeman
* Daniel Gooss
* Daniel Rosenwasser
* David Sherret
* David Staheli
* Elizabeth Dinella
* Eugene Timokhov
* John Doe
* Jordi Oliveras Rovira
* Kerem Kat
* Kevin Gibbons
* Kitson Kelly
* Klaus Meinhardt
* Markus Johnsson
* Martin Probst
* Mateusz BurzyΕski
* Matt McCutchen
* Micah Zoltu
* Mohamed Hegazy
* Nathan Shively-Sanders
* Nicu MicleuΘanu
* Pi Lanningham
* @rflorian
* Ron Buckton
* Ryan Cavanaugh
* Sam Bostock
* Sheetal Nandi
* @styfle
* Vimal Raghubir
* Vyacheslav Pukhanov
* Wenlu Wang
* Wesley Wigham
* @Zzzen