macOS Mojave update - what was updated? My macOS laptop showed a prompt top-right of the screen to restart and install updates. It took about 30 minutes so I guess it was something serious.

Now MySQL (through brew) won't start so I'm looking for clues.

Is there a way to see release notes for recently installed macOS updates?

I found a list in System Information > Software > Installations, ordered by install date, and it shows two entries for "macOS 10.14.2 Update" with today's date but it doesn't give any more information.

Knowing what was updated might point me in the right direction. Thanks
Apple's Downloads

Apple provide release notes for each update in the macOS Downloads section of their support site.

As an example, macOS Mojave 10.14.2 Update, states:


  The macOS Mojave 10.14.2 update improves the stability, compatibility and security of your Mac, and is recommended for all users.
  
  This update:
  
  
  Adds RTT (real-time text) support for Wi-Fi calling
  Adds a menu item to News for opening a story in Safari
  Resolves an issue that may prevent iTunes from playing media to third- party AirPlay speakers.
  
  
  For more detailed information about this update, please visit: https://support.apple.com/kb/HT209149 
  
  For detailed information about the security content of this update, please visit: https://support.apple.com/kb/HT201222


Follow the detailed information links for specific changes that are included.