The team that created UNIX also developed another operating system in the 1980s. This OS may not be as famous as UNIX, but it has been highly influential in its own ways, spearheading several concepts that are cornerstones of distributed computing systems today. The system in question is the Plan 9 OS from Bell Labs, which, as of 2021, has a new home.
Nokia Bell Labs transferred the copyright in Plan 9 software to the Plan 9 Foundation for all future development, allowing them to carry on the good work that Bell Labs and many other Plan 9 enthusiasts have undertaken over the past couple of decades.
Indeed, there is an active community of people who have been working on Plan 9 and who are interested in the future evolution of this groundbreaking operating system. That community is organizing itself bottom-up into the new Plan 9 Foundation, which is making the OS code publicly available under a suitable open-source software license. We at Nokia and Bell Labs are huge advocates for the power of open-source communities for such pioneering systems that have the potential to benefit the global software development community.
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