Async stack traces now follow more errors (
9804f55)
Bun now attaches async stack frames to errors rejected from native callbacks, which makes failures in async APIs like fs.promises, Bun.file(), DNS, crypto, and subprocesses point back to user code instead of starting at an empty stack. It also updates the rejection path across several native subsystems to preserve those async frames consistently.
Error.captureStackTrace() includes async frames (17616ae)
Error.captureStackTrace now uses the same stack-trace machinery as new Error(), so async await-chain frames are no longer dropped. This closes a long-standing mismatch between the two APIs and makes captured stacks much more useful for debugging async code.
MySQL adapter no longer leaks per query (
d7b3749)
Fixes a native memory leak in bun:sql’s MySQL adapter that could grow RSS steadily until OOM on Linux. The patch frees leaked column-name/parameter allocations and adds regression coverage for repeated query execution.
process.stdout.end() now waits for buffered writes (9a27ef7)
Bun now flushes the underlying file sink in process.stdout._final before invoking the end callback, preventing truncation when code exits immediately after end(). This fixes missing output at common boundary sizes like 64KB and 128KB.
Legacy CMake build system removed (
ba05a72)
The repository drops the old CMake build path in favor of the TypeScript build scripts, deleting the cmake/ tree and related wrappers/scripts. This is a major build-system simplification and removes a large amount of dead infrastructure.
Other misc changes
- CI/build updates, including switching the Buildkite generator to
nodeand bundling Node into the container image - Deflake webview tests and gate a macOS CI-only Chrome issue
- Update Claude GitHub Actions to a pinned action version