HTTP/2 C library and tools

Nghttp2 v1.43.0

We have released nghttp2 v1.43.0.

This release has no changes in libnghttp2.


Documentations are now built with Sphinx 3.3.0 or later.


The python binding now requires Python 3.

All python scripts for nghttp2 development are translated to Python 3 compatible.


This release fixes a potential memory issue that a memory pool gets cleared while it is still in use.

ECDSA certificate is now chosen when compatible signature algorithm is available.

This release adds a workaround to include ‘:’ in backend pattern.