After hosting an experimental IIIF service for eight years, the Internet Archive is now making its International Image Interoperability Framework (IIIF) service official. The upgrade will include the latest version 3.0 of the IIIF specification and expand the service to include audio, movies, and collections. The IIIF service allows for deep zoom on images, item analysis, and annotation support. The Internet Archive has partnered with the IIIF community to make this upgrade and aims to lower barriers to IIIF usage and adoption worldwide. The migration to the new IIIF API will be done in phases to ensure a smooth transition for partners.
https://blog.archive.org/2023/09/18/making-iiif-official-at-the-internet-archive/