The main branch release of nginx 1.21.1 has been formed, continuing the development of new features (only changes related to fixing serious bugs and vulnerabilities are made in the concurrently supported stable branch 1.20).
Key Changes:
- Nginx now always returns an error when using the CONNECT method; when both 'Content-Length' and 'Transfer-Encoding' headers are specified; when there are spaces or control characters in the request line, HTTP header name, or in the value of the 'Host' header.
- Configuration testing has been improved when using multiple listening sockets.
- Character escaping of '"', '<', '>', '\', '^', '`', '{', '|', and '}' has been established when proxying with URI changes.
- Memory consumption for long-running requests has been reduced when proxying with more than 64 buffers.
Source: opennet.ru
