Yandex DataLens release notes: December 2025

• Changes in basic features
• Fixes and improvements

Changes in basic featuresChanges in basic features

• The annual DataLens Fest, held from December 8 to 16, 2025, presented a series of offline and online activities – videos, live broadcasts, use cases, and contests – for participants to explore the all-new DataLens features, including AI tools, customization, on-premises, and migration.

• New works available in DataLens Gallery. For more information, see the DataLens Telegram chat.

• Neuroanalyst on your dashboard can now search for insights within an entire dashboard tab. It will analyze your question and dashboard contents, select relevant charts, draw data from them, and come up with the final insight. For context, it uses descriptions of dashboards, charts, datasets, and connections, as well as the data you upload.
  To try it, click Neuroanalyst at the top of the dashboard to open the Neuroanalyst tab on the right.

• Added the option to add connection and dataset info.

• Added the following to the calculated field formula editor:

  • Hash functions: MD5, SHA256, CITYHASH64 and others.

  • DB_CALL native functions for access to database functions. The DB_CALL functions allow you to:

    • Securely use string and aggregate functions from any databases.
    • Access types not currently supported by DataLens.
    • Streamline your workflow and optimize source workloads.

    Note

    Use these native functions for specific point operations DataLens does not support yet. For standard operations, e.g., aggregations, math operations, use the built-in DataLens functions for better optimization.

• Implemented the option to save a chart as a PNG image. To do this:

  1. Open the chart and click → Save as → Image in its top-right corner.

  2. Select resolution:

     • Standard, 800x600.
     • Widescreen, 1600x720.
     • Specify manually.

  3. Optionally, enable Display interface elements.

  4. Click Download.

Fixes and improvementsFixes and improvements

• Fixed the issue of incorrectly saved original background when copying a dashboard widget. Earlier, if set to Basic chart background, the original widget background would reset to transparent when copying.

• Updated the appearance of the selector and chart setup window.

• Restored the display of Request-id and Trace-Id in the private embedding errors.

Fixes in NeuroanalystFixes in Neuroanalyst

• Now charts save the context of your chat with Neuroanalyst for creating calculated fields:

  • When changing a formula.
  • When closing the chat.

Fixes in chartsFixes in charts

• Fixed the pie chart colors issue. Now colors are as per your selection in the dataset field settings.