# Confluent Control Center Release Notes Control Center is a web-based tool for managing and monitoring Confluent Platform. Control Center is continuously updated with improvements and new features. This page highlights significant user-facing features and updates to the product. ## [07/14/2026] Control Center version 2.6.0 ### New features - Partitions are now sorted in ascending order in the filter dropdown on the active consumer group page in Clients. For more information, see [Monitor consumer lag](clients/consumers.md#c3-cg-view-consumer-lag). - You can configure Control Center to resolve in-product help links against a self-hosted documentation site, for air-gap and restricted-network environments. For more information, see [confluent.controlcenter.docs.host](installation/configuration.md#c3-docs-host). ### CVEs and bug fixes - Kafka Connect connectors can now show a `STOPPED` status in the UI, with stop and resume actions available directly from Control Center. For more information, see [Pause and resume a running connector](connect.md#c3-pause-resume-connector). - Fixed an issue where broker latency data did not render on the Control Center UI. - Fixed an issue where the default disk-skew warning threshold was too low, causing false-positive warnings on healthy clusters. The default threshold is now 10 GB. - Fixed an issue where dropped-batches detection incorrectly counted certain exporter metrics. - Fixed an issue where the Clients page asked for credentials again even though the user was already logged in with Basic authentication. - Fixed an issue where the browser prompted for credentials twice during login with Basic authentication. - Fixed an issue where standard Basic authentication did not work unless `confluent.controlcenter.auth.session.expiration.ms` was also set. You can now use standard Basic authentication without setting this property. - Fixed an issue where partitions showed as `Offline` in Control Center when the in-sync replica count fell below `min.insync.replicas`. Partitions now show as offline only when all replicas are down, matching Kafka behavior. - Fixed an issue where the Topic details page crashed when `confluent.controlcenter.ui.topic.kafkarest.enable` was enabled. - Upgraded Prometheus to version 3.13.0 and Alertmanager to version 0.33.0. ## [06/23/2026] Control Center version 2.5.1 ### CVEs and bug fixes - Upgraded Alertmanager to version 0.32.2 and Prometheus to version 3.12.0. - Fixed an issue where observer replicas were counted in under-replicated partitions (URP) on Multi-Region Clusters. - Fixed an issue where Control Center failed to start with multiple basic authentication Kafka clusters. - Fixed an issue where editing a schema in the UI sent the subject as `undefined`. - Fixed an issue where connector credentials were not masked. Credentials are now always masked and are no longer pre-filled on edit. ## [04/21/2026] Control Center version 2.4.2 ### CVEs and bug fixes - Upgraded Prometheus to version 3.11.2 and Alertmanager to version 0.32.0. - Fixed an issue where updating a topic in the UI with Confluent Platform 8.2.0 caused describe topics to break. - Fixed an issue where creating a schema in the UI sent `undefined` as the schema context to the API. ## [04/02/2026] Control Center version 2.5.0 ### New features - **Queues for Kafka (share groups) UI**: Control Center adds native support for Kafka queues (share groups). You can view, manage, and monitor queue-based consumption patterns alongside traditional consumer groups. - **Flink SQL GA**: Control Center 2.5 introduces the general availability of the Apache Flink® SQL statement management feature in Confluent Manager for Apache Flink (CMF). - **Kafkaless mode for CP Flink users**: Control Center can run without a bootstrap Kafka cluster when operating in CMF-enabled management mode. This allows you to use Control Center without the need to deploy and manage Confluent Server. - **Flink savepoint management**: You can create, view, and manage Flink savepoints directly from Control Center. This enables point-in-time recovery and controlled job upgrades without switching to external tooling. - **Redesigned landing page for large-scale deployments**: Control Center supports monitoring 100 or more Kafka clusters from a single instance with a redesigned landing page. This allows you to efficiently navigate and monitor your entire fleet at scale. - **Customizable UI login banner**: You can configure a custom login banner, such as notice of monitoring, that displays before authentication to meet compliance requirements. - **Flink multi-Kubernetes support**: You can monitor and manage Flink deployments spanning multiple Kubernetes clusters. This supports enterprise architectures with distributed compute infrastructure. - **Flink session cluster support**: Control Center displays and manages Flink session clusters, providing visibility into shared Flink compute environments and the jobs running within them. - **Confluent Private Cloud license support**: Control Center supports Confluent Private Cloud licensing, which enables license management for customers running Confluent Platform in private cloud environments. - **Alerts replication for high-availability (HA) deployments**: For Active/Active HA deployments, Control Center can automatically replicate alerts and triggers between instances. Enable by setting `confluent.controlcenter.prometheus.alertmanager.yaml.refresh.enabled=true`. ### CVEs and bug fixes - The **Topics** page now handles 10,000 or more topics through server-side pagination. This eliminates page crashes and infinite scrolling issues that previously impacted customers with large topic counts. ## [03/26/2026] Control Center version 2.4.1 ### CVEs and bug fixes - Upgraded Prometheus to version 3.10.0. - Fixed a security issue in which error responses could expose internal stack traces and system information for unhandled Kafka exceptions. - Filtered `confluent.future.timestamp.validation.excluded.org.ids` from the topic create form in the UI to handle topic configuration issues in Confluent Platform Server 8.2.0. ## [02/26/2026] Control Center version 2.3.2 ### CVEs and bug fixes - Upgraded Alertmanager to version 0.31.1 and Prometheus to version 3.9.1. ## [01/23/2026] Control Center version 2.4.0 ### New features - The Apache Flink® SQL statement management feature in Confluent Manager for Apache Flink (CMF) is now available in Preview. To provide feedback, contact your Confluent account team. ### CVEs and bug fixes - Fixed an issue where RBAC with Confluent Manager for Apache Flink (CMF) was not working. ## [12/09/2025] Control Center version 2.3.1 ### CVEs and bug fixes - Support for parsing topic message when schema ID is in the message header - Fix for inconsistent search results in role assignment pages ## [10/22/2025] Control Center version 2.3.0 ### New features - Client monitoring powered by KIP-714 metrics is now Generally Available. - Consumer lag time-series is now supported in normal mode instead of the point-in-time values from earlier versions. - Added support for Active/Active HA deployments. - Schema context support allows you to create a topic schema in a specific schema context. You can also create new schema context as part of the schema creation process. Additionally, when multiple schemas exist for a topic, you can choose which context should be used for deserializing messages in Control Center. - Use `confluent local services start` to start Control Center `2.0+` with Confluent Platform `8.1` in a single-node archive installation with Confluent CLI version `4.39.0` and higher. ## [9/30/2025] Control Center version 2.2.1 ### New features - Customer-managed Confluent Platform for Confluent Cloud licenses can now be updated with Control Center. ## [6/11/2025] Control Center version 2.2.0 ### New features - Apache Flink® environment and application management in Confluent Manager for Apache Flink (CMF) is now Generally Available. - Generic webhook for alert notifications is now supported. - Control Center now uses Log4j2 as its logging framework. - Support for IPV6 available. - Support for monitoring and management of Confluent Platform 8.0 deployments. ### CVEs and bug fixes - Fixed error while producing to a topic from UI with an avro schema, containing long fields - Fixed intermittent critical cluster warning displayed erroneously ## [5/23/2025] Control Center version 2.1.0 ### New features - Early access of Apache Flink® environment and application management in Confluent Manager for Apache Flink (CMF). To participate, contact your account team at Confluent. ### CVEs and bug fixes - Fixed intermittent topic not found on topic creation - Fixed cluster name clipped at the bottom ## [5/15/2025] Control Center version 2.0.0 ### New features - Compatible with Confluent Platform `7.5` - `7.9` versions - Supports monitoring of multiple clusters with up to 400K partitions (including replication). - Support for Basic Authentication with TLS, as well as mutual TLS (mTLS) for secure communications between internal Control Center components. - Features a lightweight design that lowers system requirements. For more information, see [Confluent Control Center Deployment Overview](installation/overview.md#install-c3). ### Warnings - Upgrade from Control Center (Legacy) to Control Center isn’t supported. - Migration of metrics from Control Center (Legacy) 7.x versions to Control Center isn’t supported. Users are encouraged to run both versions for a transition period. For more information, see [Confluent Control Center Deployment Overview](installation/overview.md#install-c3). - You must run Control Center on a separate host/vm/container/machine than Control Center (Legacy). If you must use the same host (vm/container/machine), first remove Control Center (Legacy) completely and then perform a fresh installation of Control Center. - The following alerts supported in Confluent Platform 7.x versions aren’t supported and cannot be migrated. - ZooKeeper Disconnected - Average latency (ms) - Consumer lead - Consumption difference - Maximum latency (ms)