We are happy to release 2.11.0 🎉

Here are some highlights:

• New Solr Scaler
• Ability to pause autoscaling of ScaledJobs
• Improved and extended Prometheus Metrics
• Ability to scale to zero if there are multiple scalers with CPU and Memory scalers
• Improvements in many scalers and in the core

Here are the breaking changes of this release:

• General: Metrics Adapter: remove deprecated Prometheus Metrics and non-gRPC code (#3930)

Here are the new deprecation(s) as of this release:

• Azure Data Explorer: Deprecate metadata.clientSecret (#4514)

Learn how to deploy KEDA by reading our documentation.

🗓️ The next KEDA release is currently being estimated for September 12th, 2023, learn more in our roadmap.

New

• General: Introduce annotation autoscaling.keda.sh/paused: true for ScaledJobs to pause autoscaling (#3303)
• General: Introduce new Solr Scaler (#4234)
• General: Support ScaledObject taking over existing HPAs with the same name while they are not managed by other ScaledObject (#4457)
• CPU/Memory scaler: Add support for scale to zero if there are multiple triggers(#4269)
• Redis Scalers: Allow scaling using redis stream length (#4277)
• Redis Scalers: Allow scaling using consumer group lag (#3127)

Breaking Changes

• General: Metrics Adapter: remove deprecated Prometheus Metrics and non-gRPC code (#3930)

Improvements

• General: Add a Prometheus metric for measuring the processing loop lag (#4702)
• General: Add a Prometheus metric with KEDA build info (#4647)
• General: Allow to change the port of the Admission Webhook (#468)
• General: Enable secret scanning in GitHub repo
• General: Metrics Adapter: remove deprecated Prometheus Metrics and non-gRPC code (#3930)
• General: Kubernetes v1.25, v1.26 or v1.27 are supported
• AWS DynamoDB: Add support for indexName (#4680)
• Azure Data Explorer Scaler: Use azidentity SDK (#4489)
• External Scaler: Add tls options in TriggerAuth metadata. (#3565)
• GCP PubSub Scaler: Make it more flexible for metrics (#4243)
• GitHub Runner Scaler: Added support for GitHub App authentication (#4651)
• Kafka Scaler: Add support for OAuth extensions (#4544)
• NATS JetStream Scaler: Add support for pulling AccountID from TriggerAuthentication (#4586)
• PostgreSQL Scaler: Replace lib/pq with pgx (#4704)
• Prometheus Scaler: Add support for Google Managed Prometheus (#467)
• Pulsar Scaler: Improve error messages for unsuccessful connections (#4563)
• RabbitMQ Scaler: Add support for unsafeSsl in trigger metadata (#4448)
• RabbitMQ Scaler: Add support for workloadIdentityResource and utilize AzureAD Workload Identity for HTTP authorization (#4716)
• Solace Scaler: Add new messageReceiveRateTarget metric to Solace Scaler (#4665)

Fixes

• General: Allow to remove the finalizer even if the ScaledObject isn't valid (#4396)
• General: Check ScaledObjects with multiple triggers with non unique name in the Admission Webhook (#4664)
• General: Grafana Dashboard: Fix HPA metrics panel to use range instead of instant (#4513)
• General: Grafana Dashboard: Fix HPA metrics panel by replacing $namepsace to $exported_namespace due to label conflict (#4539)
• General: ScaledJob: Check if MaxReplicaCount is nil before access to it (#4568)
• AWS SQS Scaler: Respect scaleOnInFlight value (#4276)
• Azure Monitor: Exclude Azure Monitor scaler from metricName deprecation (#4713)
• Azure Pipelines: Respect all required demands (#4404)
• Kafka Scaler: Add back strings.TrimSpace() function for saslAuthType (#4689)
• NATS Jetstream Scaler: Fix compatibility if node is not advertised (#4524)
• Prometheus Metrics: Create e2e tests for all exposed Prometheus metrics (#4127)

Deprecations

You can find all deprecations in this overview and join the discussion here.

New deprecation(s):

• Azure Data Explorer: Deprecate metadata.clientSecret (#4514)

Other

• General: Add e2e test for external push scaler (#2698)
• General: Automatically scale test clusters in/out to reduce environmental footprint & improve cost-efficiency (#4456)
• General: Bump Golang to 1.20 (#4517)
• General: Bump kubernetes-sigs/controller-runtime to v0.15.0 and code alignment (#4582)
• General: Drop a transitive dependency on bou.ke/monkey (#4364)
• General: Fix odd number of arguments passed as key-value pairs for logging (#4368)
• General: Refactor several functions for Status & Conditions handling into pkg util functions (#2906)
• General: Stop logging errors for paused ScaledObject (with autoscaling.keda.sh/paused-replicas annotation) by skipping reconciliation loop for the object (stop the scale loop and delete the HPA) (#4253)
• General: Trying to prevent operator crash when accessing ScaledObject.Status.ScaleTargetGVKR (#4389)
• General: Use default metrics provider from sigs.k8s.io/custom-metrics-apiserver (#4473)

New Contributors

• @jkbmdk made their first contribution in https://github.com/kedacore/keda/pull/4390
• @ken8203 made their first contribution in https://github.com/kedacore/keda/pull/4408
• @EugeneLugovtsov made their first contribution in https://github.com/kedacore/keda/pull/4405
• @Parthiba-Hazra made their first contribution in https://github.com/kedacore/keda/pull/4437
• @jrRibeiro made their first contribution in https://github.com/kedacore/keda/pull/4513
• @qvalentin made their first contribution in https://github.com/kedacore/keda/pull/4486
• @tobotg made their first contribution in https://github.com/kedacore/keda/pull/4487
• @luckymrwang made their first contribution in https://github.com/kedacore/keda/pull/4574
• @ganievs made their first contribution in https://github.com/kedacore/keda/pull/4539
• @martin31821 made their first contribution in https://github.com/kedacore/keda/pull/4588
• @yoongon made their first contribution in https://github.com/kedacore/keda/pull/4643
• @prometherion made their first contribution in https://github.com/kedacore/keda/pull/4582
• @nettoclaudio made their first contribution in https://github.com/kedacore/keda/pull/4675
• @Haegi made their first contribution in https://github.com/kedacore/keda/pull/4682
• @lsolovey made their first contribution in https://github.com/kedacore/keda/pull/4713
• @a-narsudinov made their first contribution in https://github.com/kedacore/keda/pull/4705
• @mikelam-us made their first contribution in https://github.com/kedacore/keda/pull/4592
• @kratkyzobak made their first contribution in https://github.com/kedacore/keda/pull/4657
• @mcantinqc made their first contribution in https://github.com/kedacore/keda/pull/4712
• @BenjaminHerbert made their first contribution in https://github.com/kedacore/keda/pull/4727
• @flux-benj made their first contribution in https://github.com/kedacore/keda/pull/4558

Full Changelog: https://github.com/kedacore/keda/compare/v2.10.0...v2.11.0