Impact Score: 5/10
TypeScript 1.8.5
Source available — automated, not human-reviewed
Component: typescript · Channel: stable. Automated analysis, not a compatibility certification. How this works.
Analysis updated: 2026-11-01.
⚡ Executive Summary (TL;DR)
TypeScript v1.8.7. Source highlight: Note: This release has the version tag of `1.8.5.0` for Visual Studio 2013, `1.8.6.0` for NuGet and Visual Studio 2015 and `1.8.7.0` for npm
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.
⚡ Performance & Enhancements (1)
- Performance problem with `--declaration` `--noEmitOnError` and `--outFile`
📄 View Raw Release Notes (Original Developer Log)
> Note: This release has the version tag of `1.8.5.0` for Visual Studio 2013, `1.8.6.0` for NuGet and Visual Studio 2015 and `1.8.7.0` for npm
This release includes the following fixes:
- [Performance problem with `--declaration` `--noEmitOnError` and `--outFile` ](https://github.com/Microsoft/TypeScript/issues/7221)
- [Invalid this reference inside arrow function](https://github.com/Microsoft/TypeScript/issues/7212)
- [File paths in tsconfig exclude are not respected in MSBuild projects](https://github.com/Microsoft/TypeScript/issues/7198)
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 2013 plugin](https://www.microsoft.com/en-us/download/details.aspx?id=48739)
- [NuGet package](https://www.nuget.org/packages/Microsoft.TypeScript.MSBuild/1.8.6)