https://wccftech.com/new-macos-10-15-6-supplemental-update-released-with-wi-fi-and-icloud-drive-fixes/ > Apple has released a brand new macOS 10.15.6 Supplemental Update which addresses issues related to Wi-Fi and iCloud Drive. > Just four weeks ago, Apple released an important Supplemental Update for macOS Catalina users, and today, the company is doing it again to address an issue related to Wi-Fi and iCloud Drive. In short, if your Wi-Fi and iCloud Drive aren't playing nicely with you then you might want to upgrade without giving it a second thought.