LWN.net needs you!Without subscribers, LWN would simply not exist. Please consider signing up for a subscription and helping to keep LWN publishing QUIC is a UDP-based transport protocol that forms the foundation of HTTP/3. It was initially developed at Google in 2012, and became an IETF standard in 2021. Work on the protocol did not stop with its standardization, however. The QUIC Working Group published several follow-up standards. Now, it is working on four more extensions to QUIC intended t...