• Cyberian's Gold

    Existing software on your system loaded a system extension signed by “DEVGURU Co., Ltd.”, which will be incompatible with a future version of macOS. Contact the developer for support.
    After Update Mac OS got error on restart.

  • Cyberian's Gold

    @zaasmi said in Legacy System Extension:

    Existing software on your system loaded a system extension signed by “DEVGURU Co., Ltd.”, which will be incompatible with a future version of macOS. Contact the developer for support.
    After Update Mac OS got error on restart.

    About system extensions and macOS

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