Apple has released new updates for all its platforms today and this is a minor update for macOS Catalina 10.15.7 with the form of a supplemental update which includes some important security patches related to malicious fonts.

The actual version number of macOS has not changed, but if you go to the System Preferences app you can update from there. This is likely to be the very last update we get from macOS Catalina as macOS Big Sur – macOS 11 is expected to available very soon.