Check for latest version and recommend upgrade:
Print release notes for installed version of client:
Check for the existence of newer versions of the client, reporting both current release version and development version.
Print release notes for the installed version of the client or latest release or development version if version_url is supplied.
Parameters: version_url – Defaults to None, meaning release notes for the installed version. Alternatives are: - synapseclient.version_check._VERSION_URL - synapseclient.version_check._DEV_VERSION_URL