The opposite of "upgrades" are downgrades or deteriorations. Downgrades refer to a reduction or a decrease in the quality or level of something. For instance, if a software program that was updated recently is reverted to an older version it is considered a downgrade. Similarly, if a company's credit rating is lowered from "A" to "B," it is seen as a downgrade in their financial status. Deterioration, on the other hand, implies a decline or worsening condition of something. A building that is left unattended for years may experience deterioration due to neglect. In contrast, upgrades represent enhancements or improvements to something, while downgrades indicate a decrease or deterioration.