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# 2021.04.00

Release notes for GridGain Control Center 2021.04.00.

## What's New in This Release

### Introduction

GridGain® Control Center is a comprehensive, customizable cluster management and developer tool for Apache® Ignite™ and GridGain applications. Use Control Center to query data across caches, monitor performance metrics, define and track production alerts, take snapshots for backup and recovery, and collect and analyze API traces. The latest Control Center 2021.04.00 release adds a new top level feature for Team collaboration and cluster sharing, and UX/bug fixes.

Note: GridGain Control Center 2021.03.01 Supports GridGain 8.7.23+. You will need to update your version of GridGain in order to work with Control Center 2021.04.00. Apache Ignite users will need to update their Ignite Agent to 2.8.1.2+.

### Team Sharing

A new collaboration feature allows you to link multiple user accounts into a Team. Teams can share configuration artifacts such as a cluster connection which they can then use to create custom dashboards, SQL queries, Alerts, etc. Teams owners can assign additional permissions to team members. Additional information about Team capabilities can be found in the [documentation](/docs/tools/enterprise/control-center/profile/teams.md).

## Fixed Issues

35 Issues were fixed and added in this release.

This list includes the following:

| Issue ID | Category  | Description                                                                        |
| -------- | --------- | ---------------------------------------------------------------------------------- |
| CC-2180  | Tracing   | Fixed issue with new Traces not refreshing properly                                |
| CC-2178  | Clusters  | Do not attempt to send cluster actions to offline clusters                         |
| CC-2177  | Tracing   | Optimize speed of trace processing                                                 |
| CC-2140  | General   | Add configuration options to disable anonymous users/connections                   |
| CC-2136  | Clusters  | Update Baseline Topology Help links                                                |
| CC-2135  | General   | Added additional options to configure Control Center internal storage data regions |
| CC-2098  | Teams     | New Teams Feature                                                                  |
| CC-2044  | Dashboard | Improve behavior when switching between Dashboard tabs                             |
| CC-2029  | Dashboard | Widgets become unresponsive after adding removing Dashboards                       |
| CC-2020  | Clusters  | Add option to share with team during Cluster connection creation                   |
| CC-2029  | Teams     | Add default team for single user accounts                                          |
| CC-1773  | Caches    | Add new statistics like total number of lost partitions for Lost Partitions tab    |
| CC-1673  | General   | Hide filter panel by default on small screen sizes                                 |
| CC-1205  | General   | Empty state screens should support responsive design                               |
| CC-2223  | Security  | Fix for CVE-2021-29425: commons.io                                                 |

## Known Issues

The following known issues have suggested workarounds.

| Issue ID | Category  | Description                                                               | Workaround                                    |
| -------- | --------- | ------------------------------------------------------------------------- | --------------------------------------------- |
| GG-32095 | Dashboard | Cache Histogram metrics should be aggregated instead of reported per node | Cache metrics graphs may have incomplete data |

## Related Information

[Customer Support](https://mariadb.com/contact/)

Please visit the [documentation](/docs/tools/enterprise/control-center.md) for more information.