At the 147th MPEG meeting, MPEG Systems (WG 3) promoted the 8th edition of ISO/IEC 14496-12 ISO base media file format (ISOBMFF) to Final Draft International Standard (FDIS), the final stage of standard development.
The ever-growing expansion of the ISO/IEC 14496-12 ISO base media file format (ISOBMFF) application area has continuously brought new technologies to the standards. During the last couple of years, MPEG Systems (WG 3) has received new technologies on ISOBMFF for more seamless support of ISO/IEC 23009 Dynamic Adaptive Streaming over HTTP (DASH) and ISO/IEC 23000-19 Common Media Application Format (CMAF) leading to the development of the 8th edition of ISO/IEC14496-12.
The new edition of the standard includes new technologies to explicitly indicate the set of tracks representing various versions of the media presentation of a single media for seamless switching and continuous presentation. Such technologies will enable more efficient processing of the ISOBMFF formatted files for DASH manifest or CMAF Fragments.
Please, see the more details in https://www.mpeg.org/147th-meeting-of-mpeg/ .