Microsoft recently began deploying HTTP/3 across Exchange Online front-door servers. Microsoft 365 customers can expect latency reductions of up to 67% when using services like Outlook.
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Google has announced that it's beginning to deploying support for the latest HTTP/3 protocol, which is based on IETF QUIC, in its Chrome browser. The new standard brings improved performance.
The Internet Engineering Task Force has approved a final name for the HTTP-over-QUIC protocol, which will soon be called HTTP/3. This will be the first major update to the protocol since 2015.