## Added

- Add a log format option for autodetection the log format.
- Add support for native OpenTelemetry spans from `@elastic/transport` package in Node.js.

## Changed

- Detect the log format automatically. We now detect if a log line is in the JSON, Logfmt, or plaintext format. No further config needed when calling our logger, like so:

  ```javascript
  const logger = Appsignal.logger("app");
  logger.info("message");
  ```

## Fixed

- Fix 'unknown' events being reported for some HTTP routes.