Oh yes, that would be great when you have friends visiting!
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No need for regex. Or for modifying an existing preset.
I see two presets which might help you. Search for 'date' and you'll come up with:
- Remove month and day from release date
- Replace full date with year in '<Tag 1>'
I think the second one will do what you want. But I suggest you test on one or two tracks before you run everything through it.