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Release Process

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Release Process

Documentation guide based on the releases of 4.0.5 and 4.1.0 on January 31, 2021.

Updated for 4.5.0 on April 7, 2024. Updated for 4.6.0 on January 19, 2025.

-MGatner, kenjis

Notation

  • 4.x.x: The new release version. (e.g., 4.5.3)
  • 4.y: The next minor version. (e.g., 4.6)
  • 4.z: The next next minor version. (e.g., 4.7)

[!NOTE] Copy this file, and replace the versions above with the actual versions.

Merge develop branch into next minor version branch 4.y

Before starting release process, if there are commits in develop branch that are not merged into 4.y branch, merge them. This is because if conflicts occur, merging will take time.

console
git fetch upstream
git switch 4.y
git merge upstream/4.y
git merge upstream/develop
git push upstream HEAD

[Minor version only] Merge minor version branch into develop

If you release a new minor version.

  • Create PR to merge 4.y into develop:
    • Title: 4.y.0 Merge code
    • Description: blank
  • Rename the current minor version (e.g., 4.5) in Setting > Branches > "Branch protection rules" to the next minor version (e.g. 4.5 → 4.6).
  • Delete the merged 4.y branch (this closes all PRs to the branch).

Preparation

Work off direct clones of the repos so the release branches persist for a time.

  • Clone both codeigniter4/CodeIgniter4 and codeigniter4/userguide and resolve any necessary PRs
    console
    rm -rf CodeIgniter4.bk userguide.bk
mv CodeIgniter4 CodeIgniter4.bk
mv userguide userguide.bk
git clone [email protected]:codeigniter4/CodeIgniter4.git
git clone [email protected]:codeigniter4/userguide.git
  • Vet the admin/ folders for any removed hidden files (Action deploy scripts do not remove these)
    console
    cd CodeIgniter4
git diff --name-status origin/master admin/

Changelog

When generating the changelog, each pull request to be included must have one of the following labels:

  • bug ... PRs that fix bugs
  • enhancement ... PRs to improve existing functionalities
  • new feature ... PRs for new features
  • refactor ... PRs to refactor

PRs with breaking changes must have the following additional label:

  • breaking change ... PRs that may break existing functionalities

Generate Changelog

To auto-generate the changelog, navigate to the Releases page, click the "Draft a new release" button.

  • Choose a tag: v4.x.x (Create new tag: v4.x.x on publish)
  • Target: develop

Click the "Generate release notes" button.

Check the resulting content. If there are items in the Others section which should be included in the changelog, add a label to the PR and regenerate the changelog.

Copy the resulting contents into CHANGELOG.md and adjust the format to match the existing content.

Process

[!NOTE] Most changes that need noting in the User Guide and docs should have been included with their PR, so this process assumes you will not be generating much new content.

  • Merge any security advisory PRs in private forks.

  • Add the current version to CHANGELOG.md with the contents generated above.

  • Update user_guide_src/source/changelogs/v4.x.x.rst

    • Remove the section titles that have no items

  • Update user_guide_src/source/installation/upgrade_4xx.rst

    • fill in the "All Changes" section using the following command, and add it to upgrade_4xx.rst: 
      git diff --name-status upstream/master -- . ':!.github/' ':!admin/' ':!changelogs/' ':!contributing/' \
    ':!system/' ':!tests/' ':!user_guide_src/' ':!utils/' \
    ':!*.json' ':!*.xml' ':!*.dist' ':!rector.php' ':!deptrac.yml' \
    ':!phpstan*' ':!psalm*' ':!.php-cs-fixer.*' ':!LICENSE' ':!CHANGELOG.md'
      • Note: tests/ is not used for distribution repos. See admin/starter/tests/.
    • Remove the section titles that have no items
    • [Minor version only] Update the "from" version in the title, (e.g., from 4.3.x → from 4.3.8).

  • Run php admin/prepare-release.php 4.x.x and push to origin.

    • The above command does the following:
      • Create a new branch release-4.x.x
      • Update system/CodeIgniter.php with the new version number: const CI_VERSION = '4.x.x';
      • Update user_guide_src/source/conf.py with the new version = '4.x' (if releasing the minor version) and release = '4.x.x'.
      • Update user_guide_src/source/changelogs/{version}.rst
        • Set the date to format Release Date: January 31, 2021
      • Update phpdoc.dist.xml with the new <title>CodeIgniter v4.x API</title> and <version number="4.x.x">
      • Update admin/starter/builds:
        • Set define('LATEST_RELEASE', '^4.x')
        • Set define('NEXT_MINOR', '4.y-dev').
        • If the major version changes, you need to manually change to define('NEXT_MINOR', '5.0-dev').
      • Commit the changes with Prep for 4.x.x release

  • Create a new PR from release-4.x.x to develop:

    • Title: Prep for 4.x.x release
    • Description: 
      Updates changelog and version references for 4.x.x.

Previous version: #xxxx
Release Code: TODO
New Changelog: TODO

(plus checklist)

  • Let all tests run, then review and merge the PR.

  • Create a new PR from develop to master:

    • Title: 4.x.x Ready code
    • Description: blank

  • Merge the PR and wait for all tests.

  • Create a new Release:

    • Choose a tag: v4.x.x (Create new tag: v4.x.x on publish)
    • Target: master
    • Title: CodeIgniter 4.x.x
    • Description: 
      CodeIgniter 4.x.x release.

See the changelog: https://github.com/codeigniter4/CodeIgniter4/blob/develop/CHANGELOG.md

## New Contributors
*

**Full Changelog**: https://github.com/codeigniter4/CodeIgniter4/compare/v4.x.w...v4.x.x
      Click the "Generate release notes" button, and get the "New Contributors".

  • Watch for the "Deploy Distributable Repos" action to make sure framework, appstarter, and userguide get updated

  • Run the following commands to install and test appstarter and verify the new version:

    console
    rm -rf release-test
composer create-project codeigniter4/appstarter release-test
cd release-test
composer test && composer info codeigniter4/framework

  • Verify that the user guide actions succeeded:

  • Fast-forward develop branch to catch the merge commit from master

    console
    git fetch upstream
git checkout develop
git merge upstream/develop
git merge upstream/master
git push upstream HEAD

  • Update the next minor version branch 4.y:

    console
    git fetch upstream
git switch 4.y
git merge upstream/4.y
git merge upstream/develop
git push upstream HEAD

  • [Minor version only] Create the new next minor version branch 4.z:

    console
    git fetch upstream
git switch develop
git switch -c 4.z
git push upstream HEAD

  • Request CVEs and publish any security advisories that were resolved from private forks (note: publishing is restricted to administrators).

  • Announce the release on the forums and Slack channel (note: this forum is restricted to administrators).

    • Make a new topic in the "News & Discussion" forums: https://forum.codeigniter.com/forum-2.html
    • The content is somewhat organic, but should include any major features and changes as well as a link to the User Guide's changelog

  • Run php admin/create-new-changelog.php <current_version> <new_version>

    • The above command does the following:
      • Create user_guide_src/source/changelogs/{next_version}.rst and add it to index.rst (See next-changelog-*.rst)
      • Create user_guide_src/source/installation/upgrade_{next_version}.rst and add it to upgrading.rst (See next-upgrading-guide.rst)

  • Create a PR for new changelog and upgrade for the next version

Appendix

Sphinx Installation

You may need to install Sphinx and its dependencies prior to building the User Guide.

This worked seamlessly on Ubuntu 20.04:

console
sudo apt install python3-sphinx
sudo pip3 install sphinxcontrib-phpdomain
sudo pip3 install sphinx_rtd_theme

Manual User Guide Process

  • Still in the CodeIgniter4 repo enter the user_guide_src directory
  • Clear out any old build files: rm -rf build/
  • Build the HTML version of the User Guide: make html
  • Build the ePub version of the User Guide: make epub
  • Switch to the userguide repo and create a new branch release-4.x.x
  • Replace docs/ with CodeIgniter4/user_guide_src/build/html
  • Ensure the file docs/.nojekyll exists or GitHub Pages will ignore folders with an underscore prefix
  • Copy CodeIgniter4/user_guide_src/build/epub/CodeIgniter.epub to ./CodeIgniter4.x.x.epub
  • Commit the changes with "Update for 4.x.x" and push to origin
  • Create a new PR from release-4.x.x to develop:
    • Title: "Update for 4.x.x"
    • Description: blank
  • Merge the PR
  • Create a new Release:
    • Version: "v4.x.x"
    • Title: "CodeIgniter 4.x.x User Guide"
    • Description: "CodeIgniter 4.x.x User Guide"
  • Watch for the "github pages" Environment to make sure the deployment succeeds

The User Guide website should update itself via the deploy GitHub Action. Should this fail the server must be updated manually. See repo and hosting details in the deploy script at the User Guide repo.