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Biamp Cornerstone

Qt X Release notes

This article provides details of Biamp Cambridge Qt X Firmware revisions. Downloads available at, or via the linked version number below. Future release notes will be added to this page.

Qt X release notes


Released February 2022


  • Addressed scheduling issue in previous released firmware
  • Resolved a sound masking issue where it turns off unexpectedly
  • Resolved an issue where a device is prevented from fully booting
  • Resolved an issue where a user may be unable to log into a protected system


First public release, December 2021


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