# 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`](https://github.com/denoland/deno/),
      [`denoland/deno_std`](https://github.com/denoland/deno_std/),
      [`denoland/dotland`](https://github.com/denoland/dotland/),
      [`denoland/docland`](https://github.com/denoland/docland/),
      [`denoland/deno_docker`](https://github.com/denoland/deno_docker/)
      [`denoland/manual`](https://github.com/denoland/manual/)
- [ ] Ensure that external dependencies are up-to date in `denoland/deno` (e.g.
      `rusty_v8`, `serde_v8`, `deno_doc`, `deno_lint`).
- [ ] 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. Go to the "version_bump" workflow in the deno_std repo's actions:
   https://github.com/denoland/deno_std/actions/workflows/version_bump.yml

2. Click on the "Run workflow" button.
   1. For the kind of release, select "minor".
   2. Run the workflow.

3. A PR will be automatically created. Follow the checklist in the PR and review
   it.

   <details>
     <summary>❌ Failure Steps</summary>

   1. Checkout the latest main.
   2. Manually run `./_tools/release/01_bump_version.ts --minor`
      1. Ensure the version in `version.ts` is updated correctly.
      2. Ensure `Releases.md` is updated correctly.
      3. Ensure all the tests pass with the latest build (examine the repo for
         what the command is and run the local built deno binary)
   3. Open a PR with the changes and continue with the steps below.
   </details>

4. Merge the PR.

5. Wait for the CI run to complete which will tag the repo and create a draft
   release. Review the draft release and then publish it.

   <details>
     <summary>❌ Failure Steps</summary>

   1. Tag the repo manually in the format `x.x.x`
   2. Draft a new GH release by copying and pasting the release notes from
      `Releases.md`
   </details>

## 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 do not add
features to the CLI. This generally means to filter out `feat` commits but not
necessarily (ex. `feat(core): ...`). 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.

### Phase 1: Bumping versions

1. After releasing deno_std, go to the "version_bump" workflow in the CLI repo's
   actions: https://github.com/denoland/deno/actions/workflows/version_bump.yml

2. Click on the "Run workflow" button.
   1. In the drop down, select the minor branch if doing a patch release or the
      main branch if doing a minor release.
   2. For the kind of release, select either "patch", "minor", or "major".
   3. Run the workflow.

3. Wait for the workflow to complete and for a pull request to be automatically
   opened.

   <details>
     <summary>❌ Failure Steps</summary>

   1. Checkout the branch the release is being made on.
   2. Manually run `./tools/release/01_bump_crate_versions.ts`
      1. Ensure the crate versions were bumped correctly
      2. Ensure deno_std version was updated correctly in `cli/compat/mod.rs`
      3. Ensure `Releases.md` was updated correctly
   3. Open a PR with the changes and continue with the steps below.
   </details>

4. Review the pull request and make any necessary changes.

5. Merge it.

### Phase 2: Publish

1. Go to the "cargo_publish" workflow in the CLI repo's actions:
   https://github.com/denoland/deno/actions/workflows/cargo_publish.yml

2. Run it on the same branch that you used before and wait for it to complete.

   <details>
     <summary>❌ Failure Steps</summary>

   1. The workflow was designed to be restartable. Try restarting it.
   2. If that doesn't work, then do the following:
      1. Checkout the branch the release is occurring on.
      2. If `cargo publish` hasn't completed then run
         `./tools/release/03_publish_crates.ts`
         - Note that you will need access to crates.io so it might fail.
      3. If `cargo publish` succeeded and a release tag wasn't created, then
         manually create and push one for the release branch with a leading `v`.
   </details>

3. This CI run create a tag which triggers a second CI run that publishes the
   GitHub draft release.

   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.

4. 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
   ```

5. Publish the release on Github

6. Run the
   https://github.com/denoland/dotland/actions/workflows/update_versions.yml
   workflow.
   - This should open a PR. Review and merge it.

   <details>
     <summary>❌ Failure Steps</summary>

   1. Update https://github.com/denoland/dotland/blob/main/versions.json
      manually.
   2. Open a PR and merge.
   </details>

7. Push a new tag to [`manual`](https://github.com/denoland/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.

8. 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.

9. **If you are cutting a patch release**: a PR should have been automatically
   opened that forwards the release commit back to main. If so, merge it. If not
   and it failed, please manually create one.

## 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. Run the update_deno workflow in the docland repo on the main branch:
   https://github.com/denoland/docland/actions/workflows/update_deno.yml

2. This will open a PR. Review it and merge, which will trigger a deployment.

   <details>
     <summary>❌ Failure Steps</summary>

   1. Checkout a new branch for docland (e.g. `git checkout -b deno_1.17.0`).
   2. Execute `deno task build`
   3. Commit changes and raise a PR on `denoland/docland`.
   4. Merging the approved PR will trigger deployment to Deploy of the updates.
   </details>

## 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`.