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Red Hat strikes a crushing blow against RHEL downstreams
(www.theregister.com)
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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Debian has always been Ubuntu's upstream and still is.
Interesting, I was under the impression that Ubuntu by now was a completely independent distribution and only relying on Debian for specific tools like apt.
But I've left the ecosystem about 15 years ago so my knowledge of the current state of things is limited to the occasional news.