There are a lot of reasons I recommend Ubuntu to Linux newbies. It’s well supported, reasonably stable, and easy to use. But I prefer to roll with Arch Linux myself. It has several compelling attributes, but one of its biggest pluses is that Arch is a rolling-release distribution.
If you’re using Linux for the first time, there’s a pretty good chance your OS is what’s called a “versioned release” distribution. Ubuntu, Fedora, Debian, and Mint all release numbered versions of their respective operating systems. By contrast, a rolling-release distribution eschews versions altogether. Here are a few of the things you can expect from a rolling release.
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