> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://help.sigmacomputing.com/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://help.sigmacomputing.com/_mcp/server. # What's new in Sigma > Sigma release notes for Jul 31, 2026: Sigma plugin for ChatGPT, Amazon Bedrock GA, Sigma Tenants GA, migrate a dataset to data model API, the BusinessDays function, and more. ## AI ### Sigma plugin for ChatGPT You can now install the Sigma MCP server for ChatGPT in one click using the Sigma plugin. For more information, see [Use the Sigma MCP server](/docs/use-sigma-mcp-server). ### Support for Amazon Bedrock AI provider (GA) Amazon Bedrock is now a supported AI provider, letting you use Anthropic foundation models with Sigma AI-powered features. For setup instructions, see [Add Amazon Bedrock as an AI provider](/docs/manage-external-ai-integrations#add-amazon-bedrock-as-an-ai-provider). ### Assistant in build mode: multiple choice prompts (Beta) In workbooks, Sigma Assistant in build mode can now respond with multiple choice prompts that present predefined response options users can select. These prompts help clarify intent, guide users through a workflow, and capture input in a structured format. ### Assistant in build mode: proposed feedback (Beta) In workbooks, Sigma Assistant in build mode now offers to send your feedback to Sigma when it detects dissatisfaction with a response. You can review and edit the feedback before submitting, or you can dismiss the proposal and resume your session. ## API ### New API endpoint for migrating a dataset to a data model (Beta) The following endpoint is now available to migrate a dataset to a data model: * [Migrate a dataset to a data model](/reference/migrate-dataset-to-data-model) (POST /v2/datasets/:datasetId/migrate) Use this endpoint to migrate datasets to data models programmatically, or pass `dryRun: true` to assess the impact of a migration. For more details on how datasets are migrated to data models in Sigma, see [Migrate a dataset to a data model](/docs/migrate-a-dataset-to-a-data-model). ### New API endpoint for restoring a workbook version The following endpoint is now available to restore a workbook to a previous version: * [Restore a workbook version](/reference/restore-workbook-version) (POST /v2/workbooks/:workbookId/restoreVersion) You can use this endpoint to restore previous versions of workbooks programmatically. For more details on version history for workbooks, see [Workbook versions and version history](/docs/workbook-versions-and-version-history). ## Admin ### Sigma Tenants (GA) Sigma Tenants let you set up a multitenant architecture with multiple Sigma organizations to centralize governance while supporting self-contained and isolated tenants. You can create tenants in the same region or different regions offered by the same cloud provider. Deploy folders, data models, reports, and workbooks to tenant organizations and provide curated experiences to users on different tenants. [Example use cases](/docs/deployment-use-cases-and-examples) for Sigma Tenants include: * Comply with data residency requirements by placing tenants in different regions. * Fully isolate data for different customers as a managed service provider. * Centralize governance for multiple business units, but isolate the business units from each other. Different deployment architectures are supported. Deploy content from the parent organization to tenants or from one tenant to other tenants. See [Deploy content to tenant organizations](/docs/deploy-content-to-tenant-organizations). Sigma Tenants is a premium feature. For more details, see [Sigma Tenants](/docs/multitenancy-at-sigma). ### Audit log events for tenant deployments The Sigma Audit Logs connection now includes a `TENANTS` event category that records events related to deployment management, including the following event types: Deployed file management: * DEPLOYMENT_ITEMS_SYNCED Deployment policy configuration: * DEPLOYMENT_POLICY_CREATED * DEPLOYMENT_POLICY_UPDATED * DEPLOYMENT_POLICY_TENANTS_ADDED * DEPLOYMENT_POLICY_TENANTS_REMOVED * DEPLOYMENT_POLICY_DELETED * SOURCE_SWAP_POLICY_CREATED * SOURCE_SWAP_POLICY_UPDATED * SOURCE_SWAP_POLICY_DELETED * TENANT_DEPLOYMENT_CAPABILITY_GRANTED * TENANT_DEPLOYMENT_CAPABILITY_REVOKED * USER_ATTRIBUTE_TENANT_SET * USER_ATTRIBUTE_TENANT_DELETED For more details, see [Audit log events and metadata](/docs/audit-log-events-and-metadata). ### Create tenant audit log storage integrations (Beta) Admins can now create storage integrations to export tenant audit logs to cloud storage. See [Configure tenant audit log storage integrations](/docs/create-and-manage-tenant-organizations#configure-tenant-audit-log-storage-integrations). ## Functions and calculations ### BusinessDays function The **BusinessDays** function calculates the number of weekdays between two dates. The count includes the start and end dates, and excludes Saturdays and Sundays. For more information, see [BusinessDays](/docs/businessdays). ## Workbook elements ### Text element supports "mailto:" link scheme When configuring a link on text in a text element, you can now configure the link with a `mailto:` scheme to send an email when the link is selected. For more information, see [Text elements](/docs/text-elements). ## Workbook features ### Create tables from an array with unnest (GA) You can create a table from an array of values using the **Unnest** feature. After selecting a data source and identifying a column with array data, **Unnest** creates a new table element with one row for each item in the array. For more information, see [Create a table from an array](/docs/create-a-table-from-an-array). ## Bug fixes and improvements * Previously, after tagging a document in a folder added to a deployment policy, the document did not deploy as expected. Now, the document deploys as expected. * In workbooks, Sigma Assistant in build mode now reliably preserves Top-N SQL results when building charts, so charts show only the requested top results. * Previously, the API credentials dropdown did not allow you to search credentials. Now, search is available after opening the dropdown. * When adding source swap policies to a deployment policy, the full list of source swap policies now appears. * You can now remove bold from totals and subtotals using conditional formatting options.