Microsoft Ships TypeScript 7 Release Candidate With Go Compiler, Targeting 10x Faster Builds
Updated
Updated · InfoWorld · Jul 9
Microsoft Ships TypeScript 7 Release Candidate With Go Compiler, Targeting 10x Faster Builds
3 articles · Updated · InfoWorld · Jul 9
Summary
TypeScript 7’s release candidate is now installable from npm, and Microsoft also published a native preview of the VS Code language server ahead of a final July 2026 release.
The speed gains come from a new Go-based native compiler that parallelizes work with checker and builder workers, though larger codebases may need careful CPU and memory tuning.
VS Code has become Microsoft’s main proving ground: its team used TypeScript 6 as a bridge, then shifted built-in extensions to TypeScript 7 as the toolchain neared feature completion.
On the VS Code codebase, type checking is now 7x faster, compilation fell to about 20 seconds from 80, and full project loading dropped to 10 seconds from roughly a minute.
Microsoft said TypeScript 7.0 will ship without a full programmatic API until 7.1, so it is offering a TypeScript 6 compatibility package to let teams run both versions side by side during migration.