Google works directly with the key stake holders for each library effort and accepts the latest stable versions as they are released. Once we host a release of a given library, we are committed to hosting that release indefinitely.
Both Microsoft and Google’s CDNs support HTTPS as well as HTTP, so they can be included in both. They also include both minified and full versions of the jQuery scripts.
Documentation on Microsoft’s AJAX CDN is here:
An example of loading jQuery from Microsoft’s CDN:
Documentation on Google’s AJAX CDN is here:
An example of loading jQuery from Google’s CDN: