> 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 Aug 23, 2024: Import data from an image, authenticate secure embeds using JSON Web Tokens (JWTs), and more.

## Admin

### Import data from an image (Beta)

If you have an OpenAI integration configured, you can now import data from an image of a table or a simple chart. The data is parsed and uploaded to a connection with writeback support, then you can start exploring the data in a workbook.

For more information and recommendations, see [Import data from an image (Beta)](https://help.sigmacomputing.com/docs/import-data-from-an-image).

## Embeds

### Authenticate secure embeds using JSON Web Tokens (JWTs) (Beta)

Sigma supports authenticating secure embeds using [JSON Web Tokens (JWTs)](https://jwt.io/). JWTs are compact, URL-safe tokens that can be digitally signed, ensuring that the data they contain is tamper-proof. Using JWT-signed URLs for your embeds offers several advantages, including offering a secure way to embed content that can be accessed by both external users and internal users.

For more information, see [Create an embed API with JSON web tokens (Beta)](https://help.sigmacomputing.com/docs/create-an-embed-api-with-json-web-tokens).

## Workbook elements

### Paste 2,000 rows in input tables on Snowflake connections

When populating data in input tables on a Snowflake connection, you can now paste up to 50,000 cells at once (2,000 rows and 25 columns).

For more information, see [Intro to input tables](https://help.sigmacomputing.com/docs/intro-to-input-tables#input-tables-overview).

### Waterfall chart (GA)

Waterfall charts are now generally available (GA). Build a waterfall chart to show changes in data over a period of time. Waterfall charts are perfect for financial analytics use cases where you track revenue and spend for a project, department, or an entire organization, and other use cases. You can format the shape, start, and end values of a waterfall chart as well.

For more information, see [Build a waterfall chart](https://help.sigmacomputing.com/docs/build-a-waterfall-chart).

## Bug fixes

* Sorting pivot columns in a pivot table with more than 25,000 cells of data now works as expected.