Coming about three and a half months after digiKam 7.6, the digiKam 7.7 release is here with support for the AOM AV1 Image File Format (AVIF) open, royalty-free video coding format, which is support for reading and writing in all bundles (AppImage, macOS, and Windows).
digiKam 7.7 also appears to add read/write support for the JPEG-XL image format in all supported bundles, though JPEG-XL support was initially introduced in the digiKam 7.6 release, but there were some issues in handling animated JPEG-XL files which are now fixed.