HTTP3 is patch that unfucked some stupid design choices from HTTP2[1]
However IPv6 is perfectly suited to the datacentre. So long as you have properly infrastructure setup (ie properly functioning DNS) IPv6 is a godsend for simplifying medium scale infra.
In fact, if you want to get close to a million hosts, you need ipv6.
[1] Me and http/2 have beef, TCP multiplexing was always going to be a bad idea, but because idealism got in the way of testing
However IPv6 is perfectly suited to the datacentre. So long as you have properly infrastructure setup (ie properly functioning DNS) IPv6 is a godsend for simplifying medium scale infra.
In fact, if you want to get close to a million hosts, you need ipv6.
[1] Me and http/2 have beef, TCP multiplexing was always going to be a bad idea, but because idealism got in the way of testing