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From improved type inference to performance wins, TypeScript keeps evolving. Daniel Rosenwasser joins Seth Juarez to walk through what’s new in the language and what the team is building next.
To learn more, please check out these resources:
* https://aka.ms/TypeScript/NativePreview
* https://aka.ms/TypeScript-6-0
* https://aka.ms/TypeScript-7-0/beta
𝗦𝗽𝗲𝗮𝗸𝗲𝗿𝘀:
* Daniel Rosenwasser
* Seth Juarez
𝗦𝗲𝘀𝘀𝗶𝗼𝗻 𝗜𝗻𝗳𝗼𝗿𝗺𝗮𝘁𝗶𝗼𝗻:
This is one of many sessions from the Microsoft Build 2026 event. View even more sessions on-demand and learn about Microsoft Build at https://build.microsoft.com
LIVE155 | English (US)
Broadcast Stage
#MSBuild
Chapters:
0:00 – Introduction and guest welcome at Microsoft Build
00:00:14 – Daniel Rosenwasser introduces himself and role on TypeScript team
00:00:52 – Overview and origin of TypeScript – solving scalability and safety issues in JavaScript
00:02:45 – TypeScript’s growth and current status as GitHub’s most used programming language
00:03:44 – Discussion on TypeScript being built using itself and challenges of performance scaling
00:05:33 – Major rewrite: TypeScript compiler ported from TypeScript to Go for efficiency
00:07:04 – Methodical and semi-automated process of porting code using TypeScript tools and AST
00:11:12 – Demo setup – compiling the VS Code source with old compiler showcasing single-thread limitation
00:14:01 – Demo with new Go-based compiler (tsgo) showing massive parallel speed improvements
00:15:08 – Real-world adoption examples and closing remarks on improved performance Read More Microsoft Developer
