#SupportedPluginCompatibilityUUIDs

  1. Mail.app plugin compatibility for macOS Sierra (10.12)

    Mail.app in macOS 10.11 and earlier used to check the plugins compatibility using the SupportedPluginCompatibilityUUIDs key in the plugin’s Info.plist. For example a Mail plugin would only be compatible with macOS 10.11.6 if its Info.plist contained the following:
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