[Yandex Cloud documentation](../../index.md) > [Yandex DataLens](../index.md) > [Release notes](index.md) > Archive > September 2025 # Yandex DataLens release notes: September 2025 * [Changes in basic features](#base) * [Fixes and improvements](#fixes) * [Changes available with the _Business_ service plan](#business) ## Changes in basic features {#base} * Added [dataset versioning](../dataset/versioning.md). You can now view a list of previously saved dataset changes and roll back to a previous version. * In the chart [axis settings](../concepts/chart/settings.md#axis-settings), added the ability to select `Manually` for label formatting. * When using a connection to [PostgreSQL](../operations/connection/create-postgresql.md), added the ability to provide `TODAY()` as the first argument for the [DATEADD](../function-ref/DATEADD.md) function. * Updated the settings form for calculated fields in datasets and charts: the field name is now displayed in a separate row. * Added highlighting of features available with the Business [service plan](../concepts/service-plans-comparison.md) in some menus. {% cut "Object creation menu in workbooks" %} ![image](../../_assets/datalens/release-notes/business-in-menu-workbooks.png) {% endcut %} * Added a privacy policy: click ![image](../../_assets/console-icons/circle-question.svg) **Help center** → **Privacy policy** in the left-hand navigation panel. * Implemented [adding chart info](../operations/chart/add-description.md) in the wizard, Editor, and in QL charts. * Added the **Retry** button in the window with related objects; it appears when an error occurs on window opening. * Now only a user with the `datalens.instances.admin` or `datalens.admin` [DataLens role](../security/roles.md#service-roles) can create a [Usage Analytics](../operations/connection/create-usage-tracking.md) connection. To allow other users to view a connection and query it, the connection administrator can configure [object access permissions](../security/manage-access.md). * Added a connection to [Trino](../operations/connection/create-trino.md). A connector enables you to connect either to a managed database in the current Yandex Cloud organization or to an external database with your own credentials and an option to select the authentication type. * Modified the behavior of [signed parameters](../security/private-embedded-objects.md#signed-parameters) in private embeddings: * Now signed parameters take priority. If a widget gets both a signed and an external parameter of the same name at the same time, the signed one will apply. * Signed parameter selectors do not affect the dashboard charts. ### Yandex DataLens updates {#datalens-update} Released a major Yandex DataLens update: * Changed the domain to `datalens.ru`. It is now the single point of access where you can download the on-premise distribution, explore the product, or view a ready-to-use dashboard. Please note: * The promo page and DataLens itself are now available at `datalens.ru`. * The new secure embedding URL is `datalens.ru/embeds/*`. On October 9, we will enable redirection from the legacy secure embedding URLs to the new addresses. Make sure to make `datalens.ru` an allowed domain in the security settings of the website or application with embedded objects. * Public charts and dashboards are still available at `datalens.yandex`. * Updated the design and contents of the DataLens promo page. ![image](../../_assets/datalens/release-notes/promo-page.png) ## Fixes and improvements {#fixes} * Restored the ability to open a chart as a table. To open your chart as a table, click ![image](../../_assets/console-icons/ellipsis.svg) → ![image](../../_assets/console-icons/layout-cells.svg) **Open as a table** in the top-right corner of the chart. * Fixed the incorrect closing of the settings window when editing a dashboard access error. * Fixed the error where data export got implicitly [disabled](../dataset/create-dataset.md#data-export-disable) when editing a dataset. * Fixed the error caused by attempts to save a selector in which a field could not be validated. * Fixed incorrect name saving when [creating a calculated field](../concepts/calculations/index.md#how-to-create-calculated-field) in a chart. * Fixed the issue where [disabling export](../concepts/chart/data-export.md#data-export-disable) at the connection or dataset level did not stop export from QL charts based on that connection or dataset. Now export from all charts will be blocked. * Fixed incorrect behavior when adding to or deleting favorites in datasets and dashboards. ## Changes available with the _Business_ service plan {#business} * Implemented the ability to [add a description to a report](../reports/report-operations.md#report-add-description). ### Neuroanalyst in DataLens {#ai-datalens} Neuroanalyst in DataLens is now available to all users with the Business service plan, including the 30-day trial period. Neuroanalyst comprises multiple AI assistants: * [Neuroanalyst for calculated fields](../concepts/calculations/formulas-helper.md): Helps you to create calculated fields. * [Neuroanalyst on your dashboard](../dashboard/insights.md): Neuroanalytics on your dashboard. * [Neuroanalyst in Editor](../charts/editor/code-helper.md): Helps you to write code and search for answers to your questions. * [Neuroanalyst in report](../reports/insights.md): Neuroanalytics in your report. Data security and processing: * Neuroanalyst is powered by the cloud service called [Yandex Cloud AI Studio](https://aistudio.yandex.ru/docs/en/). * Your data and queries do not leave Yandex Cloud, are not logged, nor used for model tuning. * However, the user with the `datalens.admin` role may [disable](../concepts/neuroanalyst.md#prohibit) this option at the DataLens instance level or for individual dashboards. ### Background data export {#data-export} In DataLens, added [background data export](../concepts/chart/data-export.md#background-export). You can now save large amounts of data from charts. * Available only for [tables](../visualization-ref/table-chart.md) created in the [wizard](../concepts/chart/dataset-based-charts.md) with enabled pagination. * Export file format is `CSV`. * Minimum number of pages to export is two. * Maximum number of rows in the table is 1,000,000. * Maximum export file size is 1 GB. For more information about the limitations, see [this section](../concepts/chart/data-export.md#restrictions). To initiate a background export, do the following: 1. Open the data export window by doing one of the following: * Open the chart you want to export data from and click ![image](../../_assets/console-icons/ellipsis.svg) → ![icon](../../_assets/console-icons/arrow-down-to-line.svg) **Save as** → **CSV** in its top-right corner. * On the dashboard, find the chart for data export and click ![image](../../_assets/console-icons/ellipsis.svg) → ![icon](../../_assets/console-icons/arrow-down-to-line.svg) **Save as** → **CSV** in its top-right corner. 1. In the export window, under **Pages**, select `All`. Optionally, edit the following export file settings: **Value delimiter**, **Decimal separator**, and **Encoding**. 1. Click **Save**. At the bottom of your screen, you will see a message saying that the export has started and a link to the export page where you can monitor the export status and details. Once the export is complete, you will get the **Chart export complete** message with links to the export page and file for download. You can find the export history and files staged for download in the [Background data export](https://datalens.ru/exports) section.