Fixed issues in 2.9 LTSR CU7

Last published : Oct 16, 2026
HDX RealTime Optimization Pack 2.9 Cumulative Update 7 (CU7) contains all fixes that were included in HDX RealTime Optimization Pack 2.9, Cumulative Update 1, Cumulative Update 2, Cumulative Update 3, Cumulative Update 4, Cumulative Update 5, Cumulative Update 6, plus the following fixes:
  • This fix allows you to check and set the results to false for AEC support for specified hardware. To enable the fix, set the following registry key:
    HKEY_CURRENT_USER\SOFTWARE\Citrix\HDXRTConnector\MediaEngine
    Name: AecHWCheckExclusionList
    Type: REG_SZ
    Value: False
  • The following enhancements are made to improve the user experience:
    • Enable AEC in some headsets.
    • Set the following registry key to remove the echo generation at the end-point for the headsets:
      HKEY_CURRENT_USER\SOFTWARE\Citrix\HDXRTConnector\MediaEngine
      Name: AecHWCheckExclusionList
      Type: REG_SZ
      Value: False
Related information
Cumulative Update 7 (CU7)