IEC 62629-1-2:2021 is available as IEC 62629-1-2:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 62629-1-2:2021 provides a list of the terminologies that are frequently used in describing 3D display technologies in the -IEC 62629 series. Terms for various 3D display technologies on stereoscopic, autostereoscopic, volumetric, and :holographic displays are included. This edition includes the following significant technical changes with respect to the previous edition:
- added new terms related to holographic display and light field display;
- added new terms on the performance specifications used in other IEC 62629 series documents;
- added Annex C to explain the depth perception in 3D displays in more detail.