Is the update notification that Mac Screenwriter displays when launching bugging you? Are you thinking about turning it off?
You can easily turn off Automatic Check for Updates, or change its frequency -- there is a checkbox AND a popup menu in the FILES tab of Screenwriter's Preferences:
We would suggest you turn it to "Weekly", for reasons I will explain below.
HOWEVER -- if you are running Mac Screenwriter 6 (126.96.36.199, 6.2.x or 6.3) and purchased Movie Magic Screenwriter 6 in the first half of 2017, you are entitled to a FREE UPGRADE to Screenwriter 6.5:
Just go to our sales site, log in, and go to the FREE UPGRADE page for Screenwriter 6.5. Enter your serial number (the one that begins with "SCRW0600". You should be able to do a $0 ("free") purchase of Screenwriter 6.5.
If you get a message about our store not finding your serial number, it could be because you were right on the cusp of our changeover from 6.0 to 6.5. No problem: just email your name and serial number to our sales department, Sales@screenplay.com, and let them know you are eligible for the free 6.5 upgrade, but the store didn't know about your serial number.
In the future, whenever you get a message about an "Update" -- it will likely be for a FREE minor version update, NOT a paid upgrade. You should make sure to take those updates, because they often have valuable bug fixes and feature enhancements. If you turn off your check for updates completely, you will only find out about UPGRADES, not UPDATES, and only when we send email to all users, which is infrequent.
So if constant update notices are bothering you, we suggest setting the check for update frequency to weekly or monthly -- not turning it off completely. And if you already have Screenwriter 6.5, you should be downloading and installing those free upgrades.