0.37.0

New features:

• solaris ports API
• FreeBSD kqueue API
• Expanded io_uring coverage
• termios2, inotify, pidfd_open, witid, set{u,g}id, cap{g,s}et, unmount
• SO_NOSIGPIPE, SEEK_DATA, SEEK_HOLE
• A new linux_4_11 cargo feature to optimize for Linux versions >= 4.11.

Changes:

• stdout/etc. are now a safe functions (in "std" mode) (#519)
• epoll no longer has a context (#487)
• copy_file_range's len argument changed from u64 to usize (#499)
• io_uring::IoringRecvsendFlags is now split into separate send and
  receive types. (#553)
• fs::seek now uses Rustix's own SeekFrom type rather than
  std::io::SeekFrom (#486)
• Some of the Linux capabilities functions were renamed. (#500)

And many bug fixes, including hopefully a fix for the intermittent build failures (#526).