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Find and Connect to Devices on Your Local Network
After the macOS 15 upgrade, individual applications may request permission to find and connect to devices on your local network. For most applications, this is unnecessary and you can click Don't Allow. You can change these settings later in the System Settings.
https://support.apple.com/guide/mac-help/control-access-to-your-local-network-on-mac-mchla4f49138/mac
Run Apple Software Update Again
Now that you’ve upgraded, it’s a good idea to run updates again: Running Apple Software Update
Update and Test Your Apps and Peripherals
Launch your applications and try printing and scanning to make sure everything works as expected.
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Launch each application you use and check for updates. Set your applications to check for updates automatically.
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Launch the Mac App Store and install any available updates.
If you cannot print to a Carleton printer, you may need updated printer drivers: Add Printer Drivers
After you have updated drivers, you may need to remove and re-add your printer.
Application Patching
Automatic Patch Schedules are not available at this time. Please set these applications to update automatically or uninstall them if you do not need them:
Last Step: Check on Known Issues and their Resolutions