We have released nghttp2 v1.64.0.

Do not download the archive files generated by GitHub. They do not work. Please download the signed and versioned tar balls, such as nghttp2-1.64.0.tar.gz.

lib

The internal :authoriy and host field value validation now treats @ as invalid. nghttp2_check_authority still treats it as a valid character.

cmake

This release fixes c-ares v1.34.0 version detection failure.

h2load

This release fixes race condition on h1 connection close.

It also fixes UDP datagram send/recv metric.