AES68-2014, AES standard for audio connectors - XL Connectors to Improve Electromagnetic Compatibility, has been published.
This standard specifies a variant of the standard XLR connector that provides improved shell-to-shell connection to aid the rejection of RF interference. While maintaining compatibility with existing XLR connectors, a circumferential connection between the connector shells is added.
AES standards are available to AES members free of charge as a benefit of membership. Details of AES membership can be found at: http://www.aes.org/membership/