Hey @Ramhead – sorry for the trouble here. The powerful editing functionality included in 1.1 necessitated that all file tags be re-extracted, but that process is different than what you’re describing.
While import dates are editable in 1.1, if I’m understanding the issue here, it sounds like your collection was re-imported, which shouldn’t happen during the update.
Can you let me know if you’ve made any changes to your storage setup? Moved to a new hard drive? Changed paths? Moved to a different computer, restored a Roon backup, or switched to RoonServer? Anything that might’ve caused Roon to think all your content was new?