Recently, changes were done to migrate the Java doc page for Google Cloud client libraries. The latest version of the client libraries' API details can be found at https://googlecloudplatform.github.io/google-cloud-java/google-cloud-clients/apidocs/index.html However earlier we could just play with the version on the URL and get the API reference for a particular version like https://googlecloudplatform.github.io/google-cloud-java/0.46.0/apidocs/index.html but now we can't do that anymore. Whatever version we give, it is redirecting to the latest version's page. I think developers should still be able to view the API reference material for the older versions as well.