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Barracuda Load Balancer ADC

Release Notes Version

  • Last updated on

Before installing any firmware version, back up your configuration and read all release notes that apply to versions more recent than the one currently running on your system.

Do not manually reboot your system at any time during an update unless otherwise instructed by Barracuda Networks Technical Support. Depending on your current firmware version and other system factors, updating can take up to 10 minutes. If the process takes longer, contact Barracuda Networks Technical Support for further assistance.

Known Issue

  • In the High Availability environment, deleting a Layer 4 service or editing the server associated with the Layer 4 service in the Passive unit is not handled properly in the backend. It is recommended to perform these operations on the Active unit. [BNADC-5795]


  • The Slow Client Attack Prevention policy is applicable only when Application Security is set to Enable for a service. [BNADC-8695]
  • HTTP2 responses now work properly when caching is enabled. [BNADC-8791]
  • There was an issue with large hostnames and device identifiers affecting the active sync functionality. This has been fixed. [BNADC-8835]
  • The server health monitor process now honors the configured Failure Retries value. [BNADC-8836]