Turn off Auto Install OS X updates
NOTE: Beginning December 31st, 2017, development of Studiocode and iCoda will stop and new licenses will not be available for purchase. Please consider Vosaic as a replacement. Read More.
To turn off Auto Mac OS X installs, follow the instructions below.
1. Go to Apple > System Preferences > App Store
2. Click the padlock to unlock it if necessary, and enter the admin password if prompted.
3. Uncheck "Install OS X updates"