Apple has ceased to support 32-bit systems. Scanners lacking 64-bit drivers are not compatible with macOS 10.14.

For the last several years, Apple has been preparing to transition to a purely 64-bit system. In macOS 10.14, this step has been taken: 32-bit apps and drivers are no longer supported. In this new version, affected scanners will no longer function with SilverFast until their drivers are updated to support 64-bit.

At this point in time, some scanner manufacturers only provide 32-bit drivers, which are currently not supported by macOS 10.14. We thus urgently recommend that you contact your scanner manufacturer prior to updating to macOS 10.14 in order to determine the compatibility of your device.

You can find further information concerning this issue here:
https://support.apple.com/en-us/HT208436

Affected devices:

Canon:

• CanoScan 4400F
• CanoScan 8600F
• CanoScan 8800F

Epson:

• Expression 1680, Expression 1680 Pro, ES-2200
• Perfection 2400
• Perfection 2450
• Perfection 2480
• Perfection 2580
• Perfection 4490
• Perfection V10
• Perfection V100
• Perfection V200
• Perfection V30
• Perfection V300
• Perfection V33
• Perfection V330
• Perfection V350
• Perfection V37
• Perfection V370
• Perfection V500
• Perfection V550
• Perfection V600

Important note:
The SilverFast update to version 8.8.0r14 is the last 32-bit SilverFast update for the affected devices under macOS. In the future, SilverFast will be developed solely in 64-bit.