Changelog

oven-sh/bun · · 2 commits

Bun adds built-in TypeScript checking

Bun gains a new `check` command for TypeScript type checking, alongside a WebKit engine upgrade and compatibility fixes.

Jarred-Sumner sosukesuzuki

Bun ships bun check as a built-in TypeScript type checker (Jarred-Sumnerbbdc5a5)

Bun now includes a first-class check command for TypeScript projects, with CLI flags, shell completions, and docs wired in. The implementation ports TypeScript Go’s checker behavior, aiming for tsc-compatible diagnostics and making type checking part of the same workflow as run, build, and test.

Upgrade WebKit to a newer upstream snapshot (sosukesuzuki3f1765a)

Bun’s embedded WebKit/JavaScriptCore fork was bumped to upstream dbdca7545d, pulling in a large batch of engine changes. The update also includes internal C++ compatibility adjustments for the new WTF::CString/UTF-8 APIs and refreshed WebKit-specific tests, which helps keep Bun aligned with the latest engine behavior.

Other misc changes

  • Added bun check docs, completion support, and licensing notes.
  • Updated WebKit build pinning and related test fixtures.
  • Small internal binding adjustments to match upstream WebKit API changes.