We are happy to release KEDA 2.4.0 🎉

Here are some highlights:

• Introducing a new Solace PubSub+ Event Broker scaler
• Introducing a new Selenium Grid scaler
• Introducing a new Kubernetes Workload scaler
• Introduce fallback functionality
• Introduce Idle Replica Mode

Learn how to deploy KEDA by reading our documentation.

New

• Add Solace PubSub+ Event Broker scaler (#1945)
• Add Selenium Grid scaler (#1971)
• Add Kubernetes Workload scaler (#2010)
• Introduce fallback functionality (#1872)
• Introduce Idle Replica Mode (#1958)
• ScaledJob - Support pod conditions for pending job count calculation (#1970|#2009)

Improvements

• Optimize Kafka scaler by fetching all topic offsets using a single HTTP request (#1956)
• Adding ability to specify Kafka Broker Version (#1866)
• Support custom metric name in RabbitMQ scaler (#1976)
• Support using regex to select the queues in RabbitMQ scaler (#1957)
• Extend Azure Monitor scaler to support custom metrics (#1883)
• Support non-public cloud environments in the Azure Service Bus scaler (#1907)
• Support non-public cloud environments in the Azure Storage Queue and Azure Storage Blob scalers (#1863)
• Adjusts InfluxDB scaler to support queries that return integers in addition to those that return floats (#1977)
• Allow InfluxDB authToken, serverURL, and organizationName to be sourced from (Cluster)TriggerAuthentication (#1904)
• IBM MQ scaler password handling fix (#1939)
• Metrics APIServer: Add ratelimiting parameters to override client (#1944)
• Fix READY and ACTIVE fields of ScaledJob to show status when we run kubectl get sj (#1855)
• Show HashiCorp Vault Address when using kubectl get ta or kubectl get cta (#1862)
• Don't panic when HashiCorp Vault path doesn't exist (#1864)

Breaking Changes

• Fix keda-system-auth-delegator ClusterRoleBinding name (#1616). Upgrading may leave a stray ClusterRoleBinding with the old name keda:system:auth-delegator behind.

Other

• Use scaled[object/job].keda.sh/ prefix for KEDA related labels (#2008)