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Symphony I/O Mk II Software Installer – Release 3.6

• This Release adds support for macOS 10.15 Catalina.

Note: For units with Thunderbolt and/or Dante+PTHD option cards.
If your unit has an older PTHD option card in it, do NOT attempt to run the updater over USB. You don’t need an update and there is no control software for PTHD mode. If your PTHD unit also has a Thunderbolt option card installed and you do need to update, the PTHD option card must be removed from the unit first before updating over Thunderbolt. Then you can reinstall the PTHD option card.

System Requirements for Mac
• Apple Mac computer with built in Thunderbolt connector
• macOS X 10.12.6 or higher, OS X 10.15.1 supported
• 4 GB minimum RAM, 8 GB or higher recommended

IMPORTANT NOTE ON INSTALLATION
For OS 10.13, 10.14, 10.15 – During Installation you MUST Allow your unit in MacOS Security & Privacy –
DO NOT SKIP THIS STEP – Read More

Please contact Apogee Support for access to previous software versions, if needed