JEDEC and the JC-42.6 Subcommittee for Low Power Memories has announced the publication of the new JESD209-5B standard which now includes improvements to LPDDR5, as well as an extension for the standard in the form of new LPDDR5X.

Source: AnandTech – JEDEC Publishes LPDDR5X Standard at up to 8533 Mbps