[Yandex Cloud documentation](../../index.md) > [Yandex DataLens](../index.md) > [Release notes](index.md) > February 2026

# Yandex DataLens release notes: February 2026

* [Changes in basic features](#base)
* [Fixes and improvements](#fixes)

## Changes in basic features {#base}

* Added support for additional [trend and smoothing lines](../dashboard/trends-and-smoothing.md) on dashboard charts. This allows you to temporarily change the visualization without saving the changes in the original chart.

  ![chart-modeling](../../_assets/datalens/dashboard/chart-modeling.png)

  Currently:

  * Available only for linear charts (Wizard, QL charts, or Editor charts).
  * Available only from dashboards.
  * Not available for linear charts with the `X` axis in discrete mode.
  * The settings are not retained.
  * Not available on public and embedded dashboards for now.

* In chart [color settings](../concepts/chart/settings.md#color-settings), you can now set a color with a HEX code, use an eyedropper tool, and adjust color transparency.


## Fixes and improvements {#fixes}


* In [DataLens Gallery](../concepts/gallery.md), enabled viewing a list of all categories and improved category name display in category cards.
* Added a sidebar indicator showing the [trial period](../pricing.md#trial) countdown.

  ![image](../../_assets/datalens/release-notes/trial-countdown.png)

* Fixed an error that occurred when [importing workbooks](../workbooks-collections/export-and-import.md#import-workbook) from files with specific Cyrillic characters in the name.


* Improved navigation: the last breadcrumb item is now a link to the current page without parameters.
* Added an option to copy a revision ID in the object revision history (for [connections](../concepts/connection/versioning.md), [datasets](../dataset/versioning.md), [charts](../concepts/chart/versioning.md), [dashboards](../dashboard/versioning.md), and [reports](../reports/versioning.md)). To do this, in the list of versions, click ![image](../../_assets/console-icons/ellipsis.svg) → **Copy ID**.
* Updated the [Neuroanalyst](../concepts/neuroanalyst.md) chat UI.
* Fixed an error that occurred when [creating a dataset](../dataset/create-dataset.md#create) from the sidebar navigation.
* In reports, fixed the behavior of links to [headers](../reports/report-operations.md#header_1) during [report preview](../reports/report-operations.md#report-preview) in **Presentation** mode.

### Dashboard fixes {#dashboard-fixes}

* Fixed an issue where [filtering of charts by other charts](../dashboard/chart-chart-filtration.md) failed to affect global selectors on other dashboard tabs.
* Improved the selector setup interface by optimizing the size and layout of UI elements.
  
  ![image](../../_assets/datalens/release-notes/group-selectors-settings.png =581x418)

### Fixes in charts {#chart-fixes}

* Redesigned the measure color and size settings window in [indicator charts](../visualization-ref/indicator-chart.md):

  * Size settings are now located in the indicator settings section.
  * Moved color settings to the **Colors** section as in other chart types.

* In charts, you can now [configure **X** and **Y** axes](../concepts/chart/settings.md#axis-settings) without specifying a section field.
* Revised the save confirmation behavior when exporting charts:
  
  * For [background export](../concepts/chart/data-export.md#background-export), the confirmation window appears after configuring export settings.
  * For [direct export](../concepts/chart/data-export.md#save-data), the confirmation window is not displayed.
  
* Added support for [disabling export](../concepts/chart/data-export.md#data-export-disable) at the connection level for Editor charts.


### Fixes in connections {#connections-fixes}


* Added support for the `X-Org-ID` and `X-Cloud-Org-ID` headers when creating new [API Connector](../operations/connection/create-api-connector.md) connections.


* When connecting to [ClickHouse®](../operations/connection/create-clickhouse.md), the `NULL` value under `ELSE` in the `CASE` section is no longer replaced by the default type value.
* Fixed incorrect behavior of _unsaved changes_ warnings when creating a connection to [YDB](../operations/connection/create-ydb.md).
* Supported column-oriented tables and the `DB_CAST` function for YDB connections.
* In [MySQL®](../operations/connection/create-mysql.md) connection advanced settings, you can now specify `collate` for queries.
* For [Prometheus](../operations/connection/create-prometheus.md) connections, added authorization via the `Authorization` header.
* Added support for `Greenplum 7` in [Greenplum®](../operations/connection/create-greenplum.md) connections.
* Fixed an issue where schemas starting with `pg` were not displayed in datasets connected to [PostgreSQL](../operations/connection/create-postgresql.md).

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