nginx 1.17.5 has been released, containing fixes and improvements.
Innovations:
- added support for calling ioctl(FIONREAD), if available, in order to avoid reading from a fast connection for a long time;
- fixed an issue with ignoring incomplete encoded characters at the end of a request URI;
- fixed a problem with the normalization of sequences "/." and "/.." at the end of the request URI;
- fixed merge_slashes and ignore_invalid_headers directive;
- fixed a bug that occurred when building nginx in MinGW-w64 gcc 8.1 and newer.
Source: linux.org.ru