Changes with nginx 1.17.4 24 Sep 2019 *) Change: better detection of incorrect client behavior in HTTP/2. *) Change: in handling of not fully read client request body when returning errors in HTTP/2. *) Bugfix: the "worker_shutdown_timeout" directive might not work when using HTTP/2. *) Bugfix: a segmentation fault might occur in a worker process when using HTTP/2 and the "proxy_request_buffering" directive. *) Bugfix: the ECONNABORTED error log level was "crit" instead of "error" on Windows when using SSL. *) Bugfix: nginx ignored extra data when using chunked transfer encoding. *) Bugfix: nginx always returned the 500 error if the "return" directive was used and an error occurred during reading client request body. *) Bugfix: in memory allocation error handling. -- Maxim Dounin http://nginx.org/