Changes with nginx 1.20.2 16 Nov 2021

*) Feature: OpenSSL 3.0 compatibility.

*) 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: backend SSL connections in the stream module might hang after
an SSL handshake.

*) Bugfix: SSL connections with gRPC backends might hang if select,
poll, or /dev/poll methods were used.

*) Bugfix: in the $content_length variable when using chunked transfer
encoding.

*) Bugfix: requests might hang when using HTTP/2 and the "aio_write"
directive.


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