HelenOS is a microkernel-based operating system written completely from scratch. It is not UNIX-like and does not imitate any other OS. It runs on 7 different CPU architectures (IA-32, AMD-64, ARM, MIPS, PowerPC, SPARC, Itanium), supports SMP, networking, USB, sound and has its own original GUI.
0.5.019 Aug 2014 17:26
Some of the noteworthy new features are USB support, reimplemented networking stack with full TCP support and new network drivers (including Realtek RTL8139 and Intel E1000), read-only ext2 and ISO 9660 file system support, read-write MINIX FS support and several ported applications (GNU Binutils, PCC, MSIM).