Le lundi 07 août 2023 à 19:00 +0100, Viktor Mastoridis a écrit : > How do I upgrade to Lilypond 2.24 on Mint 21 (Ubuntu LTS 22.4) without braking > the system?
Just follow the tutorial, it will not interfere with the system in any way. https://lilypond.org/doc/v2.24/Documentation/learning/graphical-setup-under-gnu_002flinux.html (You presumably already have Frescobaldi, so you don't need that part, only the part where it explains how to add a new LilyPond version to Frescobaldi.)
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