Enlarge /. The 27-inch iMac.
Apple has released software updates for three of its operating systems: iOS for iPhones and iPods, iPadOS for iPads, and macOS for Macs. The updates are small and focus on bug fixes rather than adding new features.
The updates are marked with iOS 13.6.1, iPadOS 13.6.1 and macOS 10.15.6 Supplemental Update. Typically, iOS or iPadOS updates with two decimal places are bug fix updates, and releases with new features have only one decimal point.
The mobile device update fixes an issue that prevented memory from being cleared as intended, fixes a bug that could cause "some displays to be green," and fixes an issue "where exposure notifications for some Users can be disabled ". With regard to macOS, Apple mentions only two changes: a solution to a "stability problem" related to virtualization apps and a wake-from-sleep problem that only occurs with the brand new iMac that has just been released.
Here are Apple's release notes for iOS 13.6.1:
iOS 13.6.1 contains bug fixes for your iPhone.
- Addresses an issue in which unnecessary system data files may not be automatically deleted when the available space is low
- Addresses a thermal management issue in which some displays were tinted green
- Fixes an issue where exposure notifications could be turned off for some users
And for the MacOS 10.15.6 Supplemental Update:
The additional update for macOS Catalina 10.15.6 contains bug fixes for your Mac.
- Fixes a stability issue that can occur when running virtualization apps
- Fixes an issue where an iMac (Retina 5K, 27-inch, 2020) might appear washed out after waking up
All of these updates should be available today to all users of supported devices worldwide.