HTTP/2 C library and tools

Nghttp2 v1.24.0

We have released nghttp2 v1.24.0.


We have received several patches to fix grammer and typos.

The broken out-of-tree build has been also fixed.


We fixed the bug that HTTP Upgrade fails if HTTP response does not have reason-phrase.


The default minimum TLS version is now TLSv1.2. This is because the default cipher list only contains cipher suites which are compatible with it.