[Yandex Cloud documentation](../index.md) > [Yandex Managed Service for ClickHouse®](index.md) > Release notes

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# Yandex Managed Service for ClickHouse® release notes

## May 2026 {#may-2026}

* Added the ability to [create and restore](operations/cluster-backups.md) clusters with encrypted local disks from a backup. The encryption uses a custom KMS key.
* Maximum local disk size per host is increased to 36 TB. Disks of this size are available for Intel Ice Lake (`standard-v3`) configurations with 16 or more cores. To create extra large clusters, you may need to contact [support](https://center.yandex.cloud/support) to reserve the required resources.
* Added an ability to enable [performance diagnostics](operations/performance-diagnostics.md) in Terraform version 0.202.0 and in CLI version 1.8.0. <code><b><small>Terraform</small></b></code> <code><b><small>CLI</small></b></code>
* Added an ability to [restore a cluster](operations/cluster-backups.md) using Terraform. <code><b><small>Terraform</small></b></code>
* Added support for the `SET DEFINER` privilege. For clusters with user management via SQL, the `admin` user is granted the `SET DEFINER` privilege for all users. For clusters with management via API, each user is granted the `SET DEFINER` only for themselves.
* The maximum username length has been increased to 64 characters.
* Added an ability to use custom CAs (Certificate Authority).
* New ClickHouse® versions are out: [26.3 LTS](https://clickhouse.com/blog/clickhouse-release-26-03) and [26.4](https://clickhouse.com/blog/clickhouse-release-26-04).

## April 2026 {#apr-2026}

* Added the `performance_diagnostics` object to the cluster configuration for setting up diagnostic data collection.
* Fixed a critical mismatch in [host class](concepts/instance-types.md) enumeration.

## March 2026 {#mar-2026}

* Now you can use self-signed certificates. To enable the feature, contact support.
* Creating a [backup](concepts/backup.md) via the management console now requires additional confirmation in a pop-up window.
* Added an ability to change the [disk type](concepts/storage.md#storage-type-selection). Data is preserved for replicated tables and clusters compliant with the [service level agreement (SLA)](https://yandex.com/legal/cloud_sla_mdb/en/). Added the `allow host recreation` warning flag you get when changing disk type in the YC CLI; the management console now displays a warning dashboard with a list of non-replicated tables.
* Added support for partial recovery of databases or individual tables from a backup to a new cluster. The feature allows you to quickly restore only the data you need.
* Added separate [roles](security.md) to view and edit (reschedule) [maintenance](concepts/maintenance.md) without access to the cluster.

## February 2026 {#feb-2026}

* Added the **Performance diagnostics** tool for real-time cluster performance analysis via the GUI. This feature is currently in [Preview](../overview/concepts/launch-stages.md). To participate in testing, contact [support](https://center.yandex.cloud/support).
* Added the ability to enable `mysql_protocol` via Terraform. <code><b><small>Terraform</small></b></code>
* New ClickHouse® version is out: 26.1. It supports `DELETE` operations for Delta Lake.
* Now the management console displays the full DBMS version so you can track minor updates. <code><b><small>Management console</small></b></code>

## January 2026 {#jan-2026}

* Increased the maximum number of [shards](concepts/sharding.md) per cluster to 100. This enables more flexible horizontal scaling of a cluster.
* A new ClickHouse® version is out: [25.12](https://clickhouse.com/blog/clickhouse-release-25-12). Among other things, it features faster `INNER JOIN` algorithms.
* The cluster page now displays the source cluster ID in the list of all backups. This allows you to find out the backup source faster.

## December 2025 {#dec-2025}

* Added [detailed metrics](operations/monitoring.md#hosts) for disk usage on cluster hosts.
* Improved implementation of the `stats` and `Persistent Watches` methods in [ClickHouse® Keeper](concepts/replication.md#ck) to support a ZooKeeper-compatible protocol.
* Optimized [replica](concepts/replication.md) recovery. Recovery of large (2 TB and larger) non-replicated disks became faster.
* ClickHouse® Keeper coordination service running on separate hosts is [billable](pricing.md#prices-keeper). It works faster than ZooKeeper and uses the [Raft](https://en.wikipedia.org/wiki/Raft_(algorithm)) consensus algorithm. This configuration is recommended for the production environment.
* A new ClickHouse® version is out: [25.11](https://clickhouse.com/blog/clickhouse-release-25-11).

## November 2025 {#nov-2025}

* ClickHouse® Keeper is now available to all Managed Service for ClickHouse® users and used by default in new clusters. In addition, now you can create separate hosts with ClickHouse® Keeper in your cluster. Learn more about ClickHouse® Keeper in [Replication](concepts/replication.md#ck).
* Added the `managed-clickhouse.restorer` role for restoring clusters from backups. To learn more, see [Access management](security.md#managed-clickhouse-restorer).
* Removed **Kafka topics**, the DBMS setting that allowed configuring topic-level authentication parameters for [Apache Kafka® integration](https://clickhouse.com/docs/enen/engines/table-engines/integrations/kafka).
* New ClickHouse® versions are out: [25.8](https://clickhouse.com/blog/clickhouse-release-25-08), [25.9](https://clickhouse.com/blog/clickhouse-release-25-09), and [25.10](https://clickhouse.com/blog/clickhouse-release-25-10).

## October 2025 {#oct-2025}

Added new [host classes](concepts/instance-types.md) on AMD Zen 4 and AMD Zen 4 HighFreq platforms.

## July 2025 {#jul-2025}

* New ClickHouse® versions are out: [25.3](https://clickhouse.com/blog/clickhouse-release-25-03), [25.4](https://clickhouse.com/blog/clickhouse-release-25-04), [25.5](https://clickhouse.com/blog/clickhouse-release-25-05), and [25.6](https://clickhouse.com/blog/clickhouse-release-25-06).
* The backup process is now up to six times faster.
* Added support for extension management via the [Yandex Cloud CLI](../cli/quickstart.md) and API.


## July 2025 {#jul-2025}

Now you can [encrypt storage disks](concepts/storage.md#disk-encryption) with a custom KMS key when creating a cluster and restoring it from a backup.


## April 2025 {#apr-2025}

Added [integration with Connection Manager](operations/update.md#conn-man). Now, a connection in Connection Manager is automatically created for all new clusters.

## March 2025 {#mar-2025}

The new ClickHouse® version is out: [25.2](https://clickhouse.com/blog/clickhouse-release-25-02).

## February 2025 {#feb-2025}

* The new ClickHouse® version is out: [25.1](https://clickhouse.com/blog/clickhouse-release-25-01).
* You can now [restore a cluster with enabled sharding from a backup](operations/cluster-backups.md#restore).

## January 2025 {#jan-2025}

The new ClickHouse® version is out: [24.12](https://clickhouse.com/blog/clickhouse-release-24-12).

## November 2024 {#nov-2024}

The new ClickHouse® version is out: [24.10](https://clickhouse.com/blog/clickhouse-release-24-10).

## October 2024 {#oct-2024}

* The new ClickHouse® version is out: [24.9](https://clickhouse.com/blog/clickhouse-release-24-09).
* You can now [specify a retention period for your automatic backups](operations/cluster-backups.md#set-backup-retain).

## September 2024 {#sep-2024}

The new ClickHouse® version is out: [24.8 LTS](https://clickhouse.com/blog/clickhouse-release-24-08).

## July 2024 {#jul-2024}

* The new ClickHouse® version is out: [24.6](https://clickhouse.com/docs/enen/whats-new/changelog#-clickhouse-release-246-2024-07-01).
* You can now automatically convert non-replicated tables to [replicated](concepts/replication.md#replicated-tables) ones when [adding ZooKeeper hosts](operations/zk-hosts.md). This streamlines migration to a fault-tolerant configuration for single-host clusters.
* Now you can delete [backups](concepts/backup.md) manually.

## June 2024 {#jun-2024}

The new ClickHouse® version is out: [24.5](https://clickhouse.com/docs/enen/whats-new/changelog#-clickhouse-release-245-2024-05-30).

## May 2024 {#may-2024}

The new ClickHouse® version is out: [24.4](https://clickhouse.com/docs/enen/whats-new/changelog#-clickhouse-release-244-2024-04-30).

## April 2024 {#apr-2024}

The new ClickHouse® version is out: [24.3 LTS](https://clickhouse.com/docs/enen/whats-new/changelog#-clickhouse-release-243-lts-2024-03-27).

## March 2024 {#mar-2024}

* The new ClickHouse® version is out: [24.2](https://clickhouse.com/docs/enen/whats-new/changelog#-clickhouse-release-242-2024-02-29).
* Now you can create or delete multiple hosts within a single operation. This will help speed up adding or deleting cluster hosts in bulk.
* Doubled the [limit](concepts/limits.md#mch-limits) on the size of `network-ssd-nonreplicated` drives from 8 TB to 16 TB. Now you can expand your cluster without adding any more shards.

## February 2024 {#feb-2024}

* New ClickHouse® versions are out: [23.9](https://clickhouse.com/docs/enen/whats-new/changelog/2023#239), [23.10](https://clickhouse.com/docs/enen/whats-new/changelog/2023#2310), [23.11](https://clickhouse.com/docs/enen/whats-new/changelog/2023#2311), [23.12](https://clickhouse.com/docs/enen/whats-new/changelog/2023#2312), and [24.1](https://clickhouse.com/docs/enen/whats-new/changelog#-clickhouse-release-241-2024-01-30).
* Now you can [restart cluster hosts](operations/hosts.md#restart). In most cases, users do not need to restart hosts. This is an emergency troubleshooting tool in case of memory leaks or unresponsive internal DBMS processes.

## Q2 2023 {#q2-2023}

New ClickHouse® versions are out: [23.4](https://clickhouse.com/docs/enen/whats-new/changelog#-clickhouse-release-234-2023-04-26) and [23.5](https://clickhouse.com/docs/enen/whats-new/changelog#-clickhouse-release-235-2023-06-08).

## Q1 2023 {#q1-2023}

The new ClickHouse® version is out: [23.3](https://clickhouse.com/docs/enen/whats-new/changelog#-clickhouse-release-233-lts-2023-03-30).

## Q4 2022 {#q4-2022}

* New ClickHouse® versions are out: [22.10](https://clickhouse.com/docs/enen/whats-new/changelog/2022#-clickhouse-release-2210-2022-10-25) and [22.11](https://clickhouse.com/docs/enen/whats-new/changelog/2022#-clickhouse-release-2211-2022-11-17).
* You can now create ZooKeeper hosts with [non-replicated SSD storage](concepts/storage.md).
* You can now set up ZooKeeper hosts when restoring a cluster from a backup.
* You can now set up hybrid storage when restoring a cluster from a backup.
* You can now run SQL queries from your browser using an [embedded SQL editor](operations/connect/clients.md#inline-editor).
* Added the **Data parts**, **Databases**, **Inode usage**, **Rows of MergeTree tables**, and **Tables** charts on the [cluster monitoring](operations/monitoring.md#monitoring-cluster) page.
* The **Failed insert queries per host**, **Failed queries per host**, and **Failed select queries per host** charts now show the percentage of failed queries rather than their number.
* The **Max replication queue across tables** chart now shows the total replication queue of all tables and is called **Replication queue**.
* Renamed the following charts:
    * **CPU** → **CPU usage**.
    * **Disk bytes** → **Disk read/write bytes**.
    * **Memory** → **Memory usage**.
    * **Read parts per host** → **Read rows per host**.

## Q3 2022 {#q3-2022}

* Made the following parameters optional for the `yc managed-clickhouse cluster restore` command:

    * `--name`
    * `--description`
    * `--host`
    * `--user`

    Unless these parameters are explicitly specified, their values will be taken from the source cluster. At the same time, ClickHouse® and ZooKeeper hosts will have the same configuration as in the source cluster once restored. ClickHouse® hosts will only be restored for the shards whose backups are selected for restoration.

* Added the `data_cache_enabled`, `data_cache_max_size`, and `move_factor` settings for hybrid storage.

## Q2 2022 {#q2-2022}

* The new ClickHouse® version is out: 22.5 (see the [changelog](https://clickhouse.com/docs/enen/whats-new/changelog/2022#-clickhouse-release-225-2022-05-19)).
* Added support for `SYSTEM UNFREEZE`. This query completely clears your cloud storage of the cluster backup, including table data that may take up storage space after deletion. See more on [GitHub](https://github.com/ClickHouse/ClickHouse/pull/36424).
* Reduced the time to restore a cluster from a backup.
* Fixed the bug that led to deletion of pre-configured topic access passwords when editing the Apache Kafka® topic connection list.
* You can now grant permissions to system tables (`_system`) to users.
* Enabled the [force_remove_data_recursively_on_drop](https://github.com/ClickHouse/ClickHouse/pull/30054) setting to prevent `Directory not empty` errors when deleting databases.

## Q1 2022 {#q1-2022}

* The new ClickHouse® version is out: 22.3 LTS (see the [changelog](https://github.com/ClickHouse/ClickHouse/blob/master/CHANGELOG.md)).
* Added the option to restore an entire sharded cluster from a backup.
* Added the option to change the settings that enable public access to a host.

_ClickHouse® is a registered trademark of [ClickHouse, Inc](https://clickhouse.com)._