v1.67.0

Release for Oct 8 2025

What's Changed

• refactor(s2n-quic-tests): add test annotation to endpoint_limits_close_test by @boquan-fang in #2816
• refactor(s2n-events): Move OutputMode into OutputConfig by @goatgoose in #2803
• opt(s2n-quic-dc): clamp TCP server concurrency by @Mark-Simulacrum in #2827
• fix: Change MTU test setup so it isn't slow by @maddeleine in #2828
• opt(s2n-quic-dc): Further tweak TCP acceptor concurrency by @Mark-Simulacrum in #2829
• feat(s2n-events): Add config option to generate C API by @goatgoose in #2818
• fix(s2n-quic-dc): send connection close frames with pruned streams by @camshaft in #2831
• feat(s2n-quic-dc): add packet-level events by @camshaft in #2832
• refactor(s2n-quic-dc): Add trait for TCP WorkerState poll behavior by @mehnazyunus in #2836

New Contributors

• @github-actions[bot] made their first contribution in #2822
• @mehnazyunus made their first contribution in #2836

Full Changelog: v1.66.0...v1.67.0