[nginx-announce] nginx-1.21.1

[Maxim Dounin]

Changes with nginx 1.21.1                                        06 Jul 2021

    *) Change: now nginx always returns an error for the CONNECT method.

    *) Change: now nginx always returns an error if both "Content-Length"
       and "Transfer-Encoding" header lines are present in the request.

    *) Change: now nginx always returns an error if spaces or control
       characters are used in the request line.

    *) Change: now nginx always returns an error if spaces or control
       characters are used in a header name.

    *) Change: now nginx always returns an error if spaces or control
       characters are used in the "Host" request header line.

    *) Change: optimization of configuration testing when using many
       listening sockets.

    *) Bugfix: nginx did not escape """, "<", ">", "\", "^", "`", "{", "|",
       and "}" characters when proxying with changed URI.

    *) Bugfix: SSL variables might be empty when used in logs; the bug had
       appeared in 1.19.5.

    *) Bugfix: keepalive connections with gRPC backends might not be closed
       after receiving a GOAWAY frame.

    *) Bugfix: reduced memory consumption for long-lived requests when
       proxying with more than 64 buffers.


-- 
Maxim Dounin
http://nginx.org/