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2026-09-30

HTTP, HTTPS, and TLS: Part 3 — HTTP/1.1, HTTP/2, and HTTP/3: how the versions differ

#http #http2 #http3 #quic #nginx

HTTP has three versions in active use: HTTP/1.1, HTTP/2, and HTTP/3. Methods, headers, and status codes are the same across them, so an application usually doesn’t care which version a request arrived with. The …