You can now include the HTTP/3 behavior in your Ion property to support secure HTTP/3 connections between a requesting client, like a browser and the Akamai edge.
HTTP/3 keeps HTTP/1.1 and HTTP/2 concepts, but it moves away from the conventional transmission control protocol (TCP) transport layer. HTTP/3 uses the IETF QUIC protocol instead. It handles streams by itself which supports improved performance and a faster connection setup.
Previously, HTTP/2 was added by default and it was required for several other Ion-related services. HTTP/3 supports nearly all of these same services. You can upgrade your Ion property to use HTTP/3, instead. But, we recommend that you include both HTTP/3 and HTTP/2 in your property to offer the best support.
For full details, see the HTTP/3 topic in the Property Manager documentation.