Hubspot recently changed the source of property change history to a more general one ("Hubspot processing" in this screeenshot below for example), while previously it showed exactly which integration or which workflow caused the change.
This update is very harmful because if a property is changed unintended, I can no longer track which specific source that caused the change. The feature helped me identify so many issues, or even just intended behaviors from my predecessor when I took a new job.
Please consider bringing it back, it's a feature I used almost everyday.