To upgrade Bun, run bun upgrade
.
It automatically downloads the latest version of Bun and overwrites the currently-running version.
This works by checking the latest version of Bun in bun-releases-for-updater and unzipping it using the system-provided unzip
library (so that Gatekeeper works on macOS)
If for any reason you run into issues, you can also use the curl install script:
$ curl https://bun.sh/install | bash
It will still work when Bun is already installed.
Bun is distributed as a single binary file, so you can also do this manually:
- Download the latest version of Bun for your platform in bun-releases-for-updater (
darwin
== macOS) - Unzip the folder
- Move the
bun
binary to~/.bun/bin
(or anywhere)
Canary builds are generated on every commit.
To install a canary build of Bun, run:
$ bun upgrade --canary
This flag is not persistent (though that might change in the future). If you want to always run the canary build of Bun, set the BUN_CANARY
environment variable to 1
in your shell's startup script.
This will download the release zip from https://github.com/oven-sh/bun/releases/tag/canary.
To revert to the latest published version of Bun, run:
$ bun upgrade