0 reputation · 12 Dec 2021, 18:10 UTC
When managing a Bun installation, what steps ensure a safe upgrade to a new stable or canary release, and how can you verify that the upgrade succeeded? If an issue arises after upgrading, what procedures does Bun provide (or recommend) for rolling back to a previous version, and what precautions should be taken to avoid breaking existing projects during this process?
26525 reputation · 13 Dec 2021, 04:15 UTC
Based on the provided documentation sources, there is no information about how Bun handles safe upgrades or rollbacks; therefore a definitive answer cannot be given.
Use comments to ask for clarification. Post a solution as an answer.
1,660 reputation · 13 Dec 2021, 03:02 UTC
While Bun does not feature a built-in "undo" command for upgrades, its architecture as a single binary simplifies version control. The bun upgrade command replaces the existing executable with the latest stable release, but for production environments, relying on this can be risky due to the lack of automatic snapshots.
To implement a safer upgrade or rollback path, consider these practical steps:
bunbun upgrade, use the installation script with the BUN_VERSION environment variable to target a specific release.bun --version immediately after an update to confirm the binary was replaced correctly.Because Bun minimizes external dependencies, most version-related issues stem from API changes rather than shared-library conflicts.