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TypeScript 5.9 Beta just went out! Try it in your project and let us know what you think: devblogs.microsoft.com/typescript/a...

devblogs.microsoft.comAnnouncing TypeScript 5.9 Beta - TypeScriptToday we are excited to announce the availability of TypeScript 5.9 Beta. To get started using the beta, you can get it through npm with the following command: npm install -D typescript@beta Let’s tak...

8/7/25, 5:46 pm22 reposts96 likes

Josh Marantz

@josh.marantz.dev

10 July 2025

if the Go rewrite is gonna be TS 7.0, what do y'all have in mind for 6? Or are you just skipping ahead?

Fregren

@fregren.bsky.social

10 July 2025

They addressed this in their "A 10x Faster TypeScript" blog post. TS 6 will be the JS version "until TypeScript 7+ reaches sufficient maturity and adoption". devblogs.microsoft.com/typescript/t...

devblogs.microsoft.comA 10x Faster TypeScript - TypeScriptEmbarking on a native port of the existing TypeScript compiler and toolset to achieve a 10x performance speed-up.

Justin Fagnani

@justinfagnani.com

8 July 2025

Something unclear in the post is exactly what `import defer` support entails. The post makes it sound like the feature will actually work, but on the playground it looks like TypeScript just passes the syntax though and requires VM support.

Daniel Rosenwasser

@danr.bsky.social

8 July 2025

Fixed, thanks!