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Sep 26, 2025
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Update snapshot docs #14802

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26 changes: 22 additions & 4 deletions CONTRIBUTING.md
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Expand Up @@ -15,10 +15,28 @@ See [Running the tests](./docs/contributing/running-tests.md) for more details.

### Snapshot builds

For developers testing code changes before a release is complete, there are
snapshot builds of the `main` branch. They are available from
the Sonatype snapshot repository at `https://central.sonatype.com/repository/maven-snapshots/`
([browse](https://central.sonatype.com/service/rest/repository/browse/maven-snapshots/io/opentelemetry/)).
For developers testing code changes before a release is complete, snapshot builds of the `main`
branch are available from the Sonatype snapshot repository at `https://central.sonatype.com/repository/maven-snapshots/`.

To find the latest snapshot, check the maven metadata (replace `{LATEST_VERSION}` with the current
stable release):

```
https://central.sonatype.com/repository/maven-snapshots/io/opentelemetry/javaagent/opentelemetry-javaagent/{LATEST_VERSION}-SNAPSHOT/maven-metadata.xml
```

Look for the `<timestamp>` and `<buildNumber>` in the XML response, then construct the download URL:

```
https://central.sonatype.com/repository/maven-snapshots/io/opentelemetry/javaagent/opentelemetry-javaagent/{VERSION}-SNAPSHOT/opentelemetry-javaagent-{VERSION}-{TIMESTAMP}-{BUILD_NUMBER}.jar
```

For example, if the metadata shows timestamp `20250925.160708` and build number `56` for version
`2.21.0`, the snapshot JAR URL would be:

```
https://central.sonatype.com/repository/maven-snapshots/io/opentelemetry/javaagent/opentelemetry-javaagent/2.21.0-SNAPSHOT/opentelemetry-javaagent-2.21.0-20250925.160708-56.jar
```

### Building from source

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