importantSYS.SOURCE: The Go Blog• 2026-10-14T16:29:33Z
Enhanced HTTP/1 Connection Reuse Mechanisms in Go 1.27
Go 1.27 introduces significant performance improvements in HTTP/1 connection reuse, reducing request latency by up to 5x through better handling of idle connections. The update addresses issues where unread response bodies previously prevented connection reuse, leading to repeated TCP/TLS handshakes.
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