> I just updated my Sibelius Ultimate v2020.9, plus the Ultimate Sounds 2020, a big one: 26GB.
There is no such thing as "Ultimate Sounds 2020". The current "Sibelius Sounds" sample library (as supplied for Sibelius Ultimate) is unchanged from earlier versions called "Sibelius 7 Sounds". It is just a change of name, not of content.
> I saved all the versions of Sibelius, from version 6 on, because I was not sure if later updates needed the previous versions
> (because of serial codes, + whatever). I also saved all my Ultimates from v2018-7 on, for the same reason.
> Can somebody tell me if I indeed have to keep all these versions (almost 125GB now!) or can I delete them,
> at least the ones before Ultimate?
Distinguish carefully whether you are asking about the Installers for earlier versions, or whether you are asking about the installed applications themselves.
It is useful to retain Installers for the currently-installed products, in case you have to re-install after some incident, but the Installers do not have to be retained on the system disk: they could be stored on an external disk, or a USB memory stick.
There is no point in retaining Installers for obsolete versions of Sibelius (unless you are creating a museum).
You are at liberty to retain old versions of the Sibelius.app bundle in Applications, but they are not required for any upgrade or licencing purpose.
> Within the running Ultimate, under Playback Configurations,
> can I safely delete the 'Sibelius 7 Sounds' (+Chamber + Jazz + Lite)
No, that would be a terribly destructive thing to do.
> and keep only the Ultimate, MIDI and NotePerformer?
I do not understand what you mean by "Ultimate" in this context. There is no such named Playback Configuration shipped with Sibelius. If "Ultimate" is a Playback Configuration that you have created, then you are at liberty to delete it again.
> If so, can I delete them then from the 'Playback Configuration map/folder
> inside the Library/Application Support/Avid/Sibelius/ ?
You will not find any of the shipping Playback Configurations at that location. That location contains only custom Playback Configurations that you have previously created.
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Sibelius 2020.6/7.5.1/7.1.3/6.2/5.2.5, PhotoScore Ult 2020.1, Windows 10 64-bit 16GB. Desktop, and Microsoft Surface Book. |