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.

How it works

Bun's JavaScript printer replaces the "bun" import specifier with globalThis.Bun.

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()
7cd3d13
[js parser] Fix a code simplification bug that could happen when using ! and comma operator - 4de7978
[bun bun] Fix using bun bun with --platform=bun set - 43b1866

[bun dev] Fix race condition in file watcher
[bun install] Fix falling back to copyfile when hardlink fails on linux due to differing filesystems - 74309a1
[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