The MirBSD Korn Shell R35 has just been released; as per the Changelog this is a major update with some bugfixes, a lot of new features, and licence simplification (the advertising clause is gone). This version was not tested on AIX, BSD/OS, Interix, IRIX, GNU/kFreeBSD, UWIN, the Intel compiler, but we expect no regressions on these platforms either. New supported platforms include dietlibc, LLVM. Platforms already working continue to be MirOS BSD, DragonFly BSD, FreeBSD, MidnightBSD, NetBSD, OpenBSD, DEC ULTRIX, Mac OSX, HP Tru64, HP-UX, Solaris, Debian GNU/HURD, Cygwin, and various GNU/Linux systems; using gcc, pcc, SUNWcc, llvm-gcc, Compaq C, HP aCC, TenDRA; on a variety of hardware architectures.
Update 18.07.2008 – mksh R35b is out, with major bug fixes, read the changelog.