Thanks to Federico Bruni, I'm now up to date, but ... Compiling a LilyPond script in Frescobaldi requires \version "2.24.4" instead of the current 2.25.25 on my Fedora box. Is this normal?
The result is that the Frescobaldi PDF uses the default C059 (aka New Century Schoolbook, a rather clunky font IMHO) instead of the Caslon the script specified. When I compile the script using LilyPond directly, I get the desired Caslon. (I came to LilyPond from TeX, so I'm naturally fussy about fonts.) Is there an easy way to get the system LilyPond 2.25.25 and the Flatpak Frescobaldi 4.0.0 to produce identical results? I can, of course, use Frescobaldi for editing and LilyPond to produce final copy. Thanks! Fred