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# kotlinx.coroutines release checklist
To release new `<version>` of `kotlinx-coroutines`:
1. Checkout `develop` branch: <br>
`git checkout develop`
2. Retrieve the most recent `develop`: <br>
`git pull`
3. Make sure the `master` branch is fully merged into `develop`:
`git merge origin/master`
4. Search & replace `<old-version>` with `<version>` across the project files. Should replace in:
* Docs
* [`README.md`](README.md) (native, core, test, debug, modules)
* [`kotlinx-coroutines-debug/README.md`](kotlinx-coroutines-debug/README.md)
* [`kotlinx-coroutines-test/README.md`](kotlinx-coroutines-test/README.md)
* [`coroutines-guide-ui.md`](ui/coroutines-guide-ui.md)
* Properties
* [`gradle.properties`](gradle.properties)
* [`ui/kotlinx-coroutines-android/example-app/gradle.properties`](ui/kotlinx-coroutines-android/example-app/gradle.properties)
* [`ui/kotlinx-coroutines-android/animation-app/gradle.properties`](ui/kotlinx-coroutines-android/animation-app/gradle.properties)
* Make sure to **exclude** `CHANGES.md` from replacements.
As an alternative approach you can use `./bump-version.sh old_version new_version`
5. Write release notes in [`CHANGES.md`](CHANGES.md):
* Use old releases as example of style.
* Write each change on a single line (don't wrap with CR).
* Study commit message from previous release.
6. Create the branch for this release:
`git checkout -b version-<version>`
7. Commit updated files to a new version branch:<br>
`git commit -a -m "Version <version>"`
8. Push new version into the branch:<br>
`git push -u origin version-<version>`
9. Create Pull-Request on GitHub from `version-<version>` branch into `master`:
* Review it.
* Make sure it build on CI.
* Get approval for it.
0. Merge new version branch into `master`:<br>
`git checkout master`<br>
`git merge version-<version>`<br>
`git push`
1. On [TeamCity integration server](https://teamcity.jetbrains.com/project.html?projectId=KotlinTools_KotlinxCoroutines):
* Wait until "Build" configuration for committed `master` branch passes tests.
* Run "Deploy (Configure, RUN THIS ONE)" configuration with the corresponding new version.
2. In [GitHub](https://github.com/kotlin/kotlinx.coroutines) interface:
* Create a release named `<version>`.
* Cut & paste lines from [`CHANGES.md`](CHANGES.md) into description.
3. Build and publish documentation for web-site
(make sure you have [Docker](https://www.docker.com/) installed first): <br>
`site/deploy.sh <version> push`
4. In [Bintray](https://bintray.com/kotlin/kotlinx/kotlinx.coroutines) admin interface:
* Publish artifacts of the new version.
* Wait until newly published version becomes the most recent.
* Sync to Maven Central.
5. Announce new release in [Slack](https://kotlinlang.slack.com)
6. Switch into `develop` branch:<br>
`git checkout develop`
7. Fetch the latest `master`:<br>
`git fetch`
8. Merge release from `master`:<br>
`git merge origin/master`
9. Push updates to `develop`:<br>
`git push`