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bbfa235
(Get the code!)
I guess it depends on how user programs are currently using the systemd version API to check things. KDE PowerDevil strips everything before the space and just compares against the number, so in principle, the shim could use the prefix string to say something. I don't know how others use the API.
KDE PowerDevil usage is here:
https:/
A cleaner approach to handling this would be an API for advertising implemented features so programs aren't checking the version to see if something is supported. Instead, they check if a feature they require is supported. It's the best way if you're just going to implement part of systemd, but you'd have to convince upstream to implement such an API.