The client-side agent code is hosted at edge locations around the world using CloudFront CDN. The URL to get the script is:
:version is a special directive that can match a literal version or a major version.
If you place a literal version in the URL, this specific version will be returned.
Major version If you use a major version in the URL, the latest actual version will be returned. This actual version will match the major version that you provided.
This will return the latest actual version based on the major version, e.g. @2.4.9.