Substitute nginx 1.17.9, another release in the current mainline branch nginx web server. The mainline branch is under active development, while the current stable branch (1.16) is only getting bug fixes.
- Change: now nginx doesn't allow multiple "Host" lines in the request header.
- Correction: nginx was ignoring the extra "Transfer-Encoding" lines in the request header.
- Correction: socket leaks when using HTTP/2.
- Correction: a segmentation fault could occur in a worker process if OCSP stapling was used.
- Correction: in the ngx_http_mp4_module.
- Correction: when redirecting errors with code 494 using the error_page directive, nginx returned a response with code 494 instead of 400.
- Correction: socket leaks when using subrequests in njs module and aio directive.
Source: linux.org.ru