Developer Bell Labs, Vita Nuova Written in C,[1] Limbo Working state Current Source model Open-source Initial release 1996; 24 years ago Latest release 4th Edition / March 28, 2015; 4 years ago Repository Platforms ARM, PA-RISC, MIPS, PowerPC, SPARC, x86 Kernel type Virtual machine ( Dis) License GPL, LGPL, MIT Preceded by Plan 9 Official website www.vitanuova.com/inferno/, bitbucket.org/inferno-os/inferno-os Inferno is a distributed operating system started at Bell Labs and now developed and maintained by Vita Nuova Holdings as free software.