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Linux Mint 22 upgrade with Pipewire already installed
(lemmy.world)
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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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The way upgrades work on the entire Debian family is essentially, update the repos to the new release and then just install all the updates. So it's basically as if you just apt installed all packages to a newer version.
Absolute worst case it would uninstall PipeWire and reinstall PulseAudio, but more likely it would refuse to proceed due to unsolvable dependencies. If the new Mint switched to PipeWire by default, it won't do anything more than possibly updating PipeWire if there's a newer version.
Upgrades really aren't that special, it's just installing newer versions of packages, updating configs and bringing new recommended packages, removing ones that are no longer needed.