Intuit started rolling-out Maintenance Releases for the QuickBooks Desktop Product line and is pushing them out under auto-updates this week, so if you have automatic updates turned on, QuickBooks may be prompting you to install the download in the near future.
That means if you don't want to install it, you must turn off auto-updates now. And, if you cannot wait to install it until you get the auto-update, you can manually download the update from the Official Intuit QuickBooks Downloads and Updates Webpage (product/version specific)...