# Making a libsignal-client release

## 0. Make sure all CI tests are passing on the latest commit

Check GitHub to see if the latest commit has all tests passing. If not, fix the tests before releasing!

## 1. Update the library version

The first version component should always be 0, to indicate that Signal does not promise stability between releases of the library.

If the changes will require updates in Signal-Android, Signal-iOS, or Signal-Desktop, increase the second version component and reset the third to 0. Otherwise, increase the third version component.

```
bin/update_versions.py 0.x.y
cargo check --workspace # make sure Cargo.lock is updated
```

## 2. Record the code size for the Java library

On GitHub, under the Java tests for the most recent commit, copy the code size computed in the "java/check_code_size.py" step into a new entry in java/code_size.json.

## 3. Commit the version change and tag with release notes

```
git commit -am 'Bump to version v0.x.y'
git tag -a v0.x.y
```

Take a look at a past release for examples of the format:

```
v0.8.3

- Fixed several issues running signal-crypto operations on 32-bit
  platforms.
- Removed custom implementation of AES-GCM-SIV, AES, AES-CTR, and
  GHash in favor of the implementations from RustCrypto. The interface
  presented to Java, Swift, and TypeScript clients has not changed.
- Updated several Rust dependencies.
- Java: Exposed the tag size for Aes256GcmDecryption.
```

(You might think repeating the version number in the summary field is redundant, but GitHub shows it as a title.)

## 4. Push the version bump and tag to GitHub

Note that both the tag *and* the branch need to be pushed.

## 5. Submit to package repositories as needed

### Android: Sonatype

Set the environment variables `SONATYPE_USERNAME`, `SONATYPE_PASSWORD`, `KEYRING_FILE`, `SIGNING_KEY`, and `SIGNING_KEY_PASSSWORD`, then run `make -C java publish_java` to build through Docker. (Sonatype is pretty slow; even after the build completes it might take a while for it to show up.)

### Node: NPM

In the signalapp/libsignal-client repository on GitHub, run the "Publish to NPM" action. Use the tag you just made as the "Git Tag" and leave the "NPM Tag" as "latest".

### iOS: Let the iOS team know

They build all their CocoaPods on a dedicated build server, including libsignal-client.