To upgrade:

bun upgrade

What's new:

You can now import from "bun" in bun.js. You can still use the global Bun.

Before:

await Bun.write("output.txt", Bun.file("input.txt"))

After:

import {write, file} from 'bun';

await write("output.txt", file("input.txt"))

This isn't a breaking change – you can still use Bun as a global same as before.

var {write, file} = globalThis.Bun;

await write("output.txt", file("input.txt"))

You'll probably want to update types too:

bun add bun-types

Bug fixes

• [fs] Add missing isFile and isDirectory functions to fs.stat() 7cd3d1301128c1f9cdcfe5825b1fd34319ff0bdc
• [js parser] Fix a code simplification bug that could happen when using ! and comma operator - 4de7978b2763d95ddcded6ccda9b7b80cca7e8f1
• [bun bun] Fix using bun bun with --platform=bun set - 43b18663fdc763c24ae8fa0940019f2aee37c6aa

Bug fixes from v0.0.77

• [bun dev] Fix race condition in file watcher
• [bun install] Fix falling back to copyfile when hardlink fails on linux due to differing filesystems - 74309a1f9e52a11f2809485f4fc58ef317a7203b
• [Bun.serve] When a Bun.file is not found and the error handler is not run, the default status code is now 404
• [Bun.serve] Fix hanging when Bun.file sent with sendfile and the request aborts or errors
• [Bun.serve] Decrement the reference count for FileBlob sent via sendfile after the callback completes instead of before
• [Bun.serve] Serve .ts and .tsx files with text/javascript mime type by default instead of MPEG2 Video