https://9to5mac.com/2022/07/15/apple-avif-image-safari-ios-16-macos-13/
Apple will add AVIF support to upcoming versions of iOS, MacOS and Safari.
AVIF is a modern image format with similar features as HEIC images. And in some ways a bit better. Unlike HEIF/HEIC, AVIF is royalty free to use and thus with larger potential for web-use. Chrome and Firefox already supports AVIF, and Apple never added HEIC support to Safari even though it was supported by their OS.
While dpreview have high thoughts about HEIF/HEIC, I have never seen much future in the format because it wasn't royalty free. The slightly newer AVIF format has more potential, although I expect the even newer JPEG XL format to take over in the long run when supports get more widely implemented (including in browsers).
it's really, really hard to get new general-purpose image/video file formats wide-support
there's just not much benefit to it
no matter how simple it's code is packaged up to use (dll, library, source code) it can always introduce broken features, program crashes, vulnerabilitieas, malware
and it creates a new layer of tech, which is dependant on outside organizations to maintain, fix, document, test
and there is always the risk of lawsuits over IP
even if the code is "royalty free" doesn't mean there aren't restrictions on how it can be used
and if the company starts blindly accepting the "latest, greatest" version of the code, doesn't mean the new version is "clean" of IP restrictions and other legal issues
there's actually many real life examples of this
look at the populare program "Audacity" widely used, then it was bought out, and the new version released has new licensing "terms of service" and other potential issues
