The SDMX Technical Working Group has been tasked by the international organisations sponsoring the SDMX standard (i.e., BIS, ECB, EUROSTAT, IMF, OECD, UN, World Bank) to release the new SDMX 3.0 Technical Specifications. Version 3.0 introduces new features, improvements and changes to the information model, versioning of structures, the web services API and the XML/JSON/CSV transmission formats. Details of the main changes and new functionalities can be found in the SDMX 3.0 Technical Specification page here.