> ## Documentation Index
> Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

For details about versioning, see our [Versioning Policy](https://docs.activeviam.com/atoti-eos.html).

<Update label="6.1.20" description="2026-05-29">
  ### Added

  * PIVOT-12824 Auto-Explain: Added observability instrumentation. Auto-Explain now emits OpenTelemetry spans and metrics
    that cover request handling, recursive analysis and summary generation.
    See [Monitoring](../developer-guide/monitoring).
  * PIVOT-12824 Visualize This: Added observability instrumentation. The chat assistant now emits OpenTelemetry spans and
    metrics that cover conversation lifecycle, prompt execution and tool invocations.
    See [Monitoring](../developer-guide/monitoring).
  * PIVOT-12996 Auto-Explain: Exposed Auto-Explain as a Spring AI tool so it can be invoked from Visualize This as part of
    a chat conversation.
  * PIVOT-13680 Visualize This: AI cube descriptions now expose XMLA properties, and dimension, hierarchy and level
    descriptions are nested under their parent to give the model a structured view of the cube.
    See [How to configure Visualize This](../developer-guide/enable-ai-tools/atoti-java-sdk/chat/configuration).
  * PIVOT-13832 Added a customizable AI disclaimer that is returned with every AI response and displayed in the UI. A
    default disclaimer is provided when none is configured.
    See [Customize the AI disclaimer](../developer-guide/enable-ai-tools/atoti-java-sdk/disclaimer).
  * PIVOT-13978 MCP Server: Added an MCP credentials page in `starter-ai-mcp-server` that lets users mint and download
    tokens to connect MCP clients to the Atoti MCP server.
    See [MCP credentials page](../developer-guide/mcp-server/setup/mcp-credentials-page).

  ### Changed

  * Upgraded Spring AI to 1.1.6.
  * PIVOT-12494 AI license: When the license does not include the AI feature, Atoti now logs an informational message
    instead of throwing, so applications can start without AI features enabled.
  * PYTHON-826 Atoti Python SDK: `SessionConfig` now handles AI properties, allowing AI connection and chat options to be
    configured directly from Python.

  ### Removed

  * PIVOT-13932 Chat: Removed the legacy Chat v1 REST API and its associated payload types. Use the v2 streamable HTTP API
    instead.
</Update>

<Update label="6.1.19" description="2026-04-16">
  ### Added

  * Visualize This: The chat assistant now exposes the AI's reasoning process in real time. When the model reasons through
    a request before responding, the reasoning steps appear in the chat interface, giving visibility into how the
    assistant arrived at its answer.

  ### Changed

  * PIVOT-13553 Visualize This: Renamed the Spring Boot starter from `starter-ai-visualize-this` to `starter-ai-chat`.
    See [How to set up Visualize This](../developer-guide/enable-ai-tools/atoti-java-sdk/chat/setup) for the updated dependency.
  * PIVOT-13674 Visualize This: Possibility to add system prompt.
    See [How to configure Visualize This](../developer-guide/enable-ai-tools/atoti-java-sdk/chat/configuration)
  * PIVOT-13800 Auto-Explain: Updated the YAML configuration.
    See [How to configure Auto-Explain](../developer-guide/enable-ai-tools/atoti-java-sdk/auto-explain/configuration) for the
    updated configuration format.
</Update>