deno/tools/cut_a_release.md

Cutting a Deno release

Pre-flight checklist

• An up to date stable Rust toolchain
• A binary version of deno available (hopefully built from main) that is going to be available throughout any local building you might do.
• Forks and local clones of denoland/deno, denoland/deno_std, denoland/dotland, denoland/docland, denoland/deno_docker denoland/manual
• Ensure that external dependencies are up-to date in denoland/deno (e.g. rusty_v8, serde_v8, deno_doc, deno_lint).
• Ownership access on crates.io for the 19 (🙀) crates that you will be publishing. (Don't worry too much though as the main script publishing 18 of the crates allows recovery)
• Lot's of ☕

During this process main branch (or any other branch that you're creating release from) should be frozen and no commits should land until the release is cut.

Before starting the process write a message in company's #general channel: :lock: deno and deno_std are now locked

Updating deno_std

1. Checkout a branch for releasing std (e.g. release_#.#.#).

2. Open a PR on the deno_std repo that bumps the version in version.ts and updates Releases.md. You can use following command to generate a short list that needs to be updated: git log --oneline <previous_tag>.. (replace <previous_tag> with actual latest tag, eg. git log --oneline 0.122.0..). Remove all commits that are not feat or fix.

3. Before merging the PR, make sure that all tests pass when run using binary produced from bumping crates (point 3. from below).

4. When merging the PR, ensure that the commit name is exactly the version name. Eg. 0.121.0, not 0.121.0 (#1810).

5. Pull the latest main branch and make sure the commit from the merged PR is there. Create a tag with the version number (without v prefix), eg. git tag 0.122.0 <commit_hash>, then push the tag to the denoland/deno_std repository, eg. git push upstream 0.122.0.

6. Once CI passes, copy contents of Releases.md you added, and create a new release on GitHub (https://github.com/denoland/deno_std/releases).

Updating the main repo

If you are cutting a patch release: First you need to sync commit to the relevant minor branch, so if you are cutting a v1.17.3 release you need to sync v1.17 branch.

To do that, you need to cherry-pick commits from the main branch to the v1.17 branch. For patch releases we want to cherry-pick all commits that are not feat commits. Check what was the last commit on v1.17 branch before the previous release and start cherry-picking newer commits from the main.

Once all relevant commits are cherry-picked, push the branch to the upstream and verify on GitHub that everything looks correct.

1. Update your local branch (v1.XX for patch or main for minor) and checkout another branch (e.g. release_#.#.#).

2. Run ./tools/release/01_bump_crate_versions.ts to increase the versions of all crates including the CLI. If you are doing a CLI patch release, answer y to the Increment patch? prompt.

3. The above command will update the Releases.md file. Review it and ensure its output is correct. If you are cutting a minor release: make sure that there are no duplicate entries in previous releases; most often commits with fix prefix would have been included in patch releases.

4. Update link in cli/compat/mod.rs with the released version of deno_std and do a search through the tests to find std urls that need to be updated.

5. Create a PR for these changes. If you are cutting a patch release: make sure to target v1.XX branch instead of main in your PR.

6. Make sure CI pipeline passes (DO NOT merge yet).

7. Publish the crates to crates.io by running ./tools/release/02_publish_crates.ts

8. Merge the PR.

9. Create a tag with the version number (with v prefix).

10. Wait for CI pipeline on the created tag branch to pass.

    The CI pipeline will create a release draft on GitHub (https://github.com/denoland/deno/releases). Update the draft with the contents of Releases.md that you previously added.

11. Upload Apple M1 build (deno-aarch64-apple-darwin.zip) to the release draft and to https://console.cloud.google.com/storage/browser/dl.deno.land

    cargo build --release
    cd target/release
    zip -r deno-aarch64-apple-darwin.zip deno
    

12. Publish the release on Github

13. Update the Deno version on the website by updating https://github.com/denoland/dotland/blob/main/versions.json.

14. Push a new tag to manual. The tag must match the CLI tag; you don't need to create dedicated commit for that purpose, it's enough to tag the latest commit in that repo.

15. For minor releases: make sure https://github.com/mdn/browser-compat-data has been updated to reflect Web API changes in this release. Usually done ahead of time by @lucacasonato.

16. If you are cutting a patch release: open a PR that forwards all commits created in the release process to the main branch.

Updating doc.deno.land

This should occur after the Deno CLI is fully published, as the build script queries the GitHub API to determine what it needs to change and update.

1. Goto the cloned report for denoland/docland.

2. Checkout a new branch (e.g. git checkout -b deno_1.17.0).

3. Execute ./build.ts (or deno run --config deno.jsonc --import-map import-map.json --allow-read=. --allow-write=./static --allow-net build.ts).

4. Commit changes and raise a PR on denoland/docland.

5. Merging the approved PR will trigger deployment to Deploy of the updates.

Updating deno_docker

1. Open a PR on the deno_docker repo that bumps the Deno version in all Dockerfiles, the README and the example Dockerfile
2. Create a tag with the version number (without v prefix).

Write a message in company's #general channel: :unlock: deno and deno_std are now unlocked.