This is the "Nameless bird (shot by Hemingway)", so build ourselfs a new cage, hey, it's for safety purposes.. This bird adds support for IDNA via idnkit, changes the privilege- separated dotlock helper to a SETUID program, improves S/MIME interoperability a bit, improves -t and *expandaddr*. And a bit. It fixes a severe symlink related bug *but* which only matters on old systems without a realpath(3) function, like Solaris 9; none of the systems that S-nail ever has been packaged for is vulnerable, for example. Thanks for Jérémie Courrèges-Anglas for beating me to it.