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denoland-deno/tools/cut_a_release.md
Bartek Iwańczuk e23cfcd577
chore: add readme for cutting release (#10070) 
Co-authored-by: Luca Casonato <lucacasonato@yahoo.com>
Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>
2021-04-20 17:00:14 +02:00

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Cutting a Deno release

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.

  1. Create a PR that bumps versions of all crates in op_crates and runtime directories.

To determine if you should bump a crate a minor version instead of a patch version, check if you can answer any of the following questions with yes:

  • Did any of the crates direct dependencies have a semver breaking change? For example did we update swc_ecmascript from 0.56.0 to 0.57.0, or did we update rusty_v8?
  • Did the external interface of the crate change (ops or changes to window.__bootstrap in JS code)?

When in doubt always do a minor bump instead of a patch. In essentially every release all crates will need a minor bump. Patch bumps are the exception, not the norm.

  1. Make sure CI pipeline passes.

  2. Publish all bumped crates to crates.io

Make sure that cargo is logged on with a user that has permissions to publish those crates.

This is done by running cargo publish in each crate, because of dependencies between the crates, it must be done in specific order:

  • deno_core - all crates depend on deno_core so it must always be published first
  • crates in op_crates/ directory - there is no specific order required for those
  • runtime - this crate depends on deno_core and all crates in op_crates/ directory

If there are any problems when you publish, that require you to change the code, then after applying the fixes they should be commited and pushed to the PR.

  1. Once all crates are published merge the PR.

  2. Create a PR that bumps cli crate version and updates Releases.md.

  3. Make sure CI pipeline passes.

  4. Publish cli crate to crates.io

  5. Merge the PR.

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

  7. 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).

  1. Upload Apple M1 build to the release draft & to dl.deno.land.

  2. Publish the release on Github

  3. Update the Deno version on the website by updating https://github.com/denoland/deno_website2/blob/main/versions.json.