Changelog#

2026-03-26#

[Feature] LLM-friendly documentation now available via /llms.txt
We’ve added /llms.txt support to the Workiva Developer Portal, making our API documentation easily accessible to large language models and AI-powered tools. Each API version has its own llms.txt file with a complete page listing, including support for the Chains and Wdata APIs.

Helpful Links:
- Workiva Developer Portal llms.txt - View the root llms.txt file for all Workiva API versions.
- 2022-01-01 llms.txt - LLM-friendly documentation for the 2022-01-01 API version.
- Chains API llms.txt - LLM-friendly documentation for the OneCloud Chains API.
- Wdata API llms.txt - LLM-friendly documentation for the Wdata Preparation API.

[Feature] Added Enclosed list sequence
- Documents
- Presentations
- Spreadsheets
We’ve updated our list sequence to include the enclosed type, which allows for more flexible list formatting options.

[Information] Prototype documentation restored
We’ve reintroduced prototype endpoint documentation to support you in upgrading to our newer API versions. As prototype endpoints are now deprecated, we want to ensure you have easy access to all the documentation you need for a smooth transition.

[Information] API Version 2022-01-01 now deprecated
As we continue to enhance your developer experience, this API version (2022-01-01) is now deprecated in favor of our newer, more powerful 2026-01-01 version.

What this means for you:
- All endpoints in this version will continue to work, as expected, until their sunset dates.
- Generally-available endpoints will sunset on January 31, 2029, giving you plenty of time to upgrade
- Prototype endpoints will sunset on January 31, 2027
Note: This deprecation does not affect Wdata or Chains APIs.

Helpful Links:
- 2026-01-01 Upgrade Guide
- API Versioning at Workiva

[Bug Fix] Removed unsupported clearValueFormatStyles field from Update Sheet requests
clearValueFormatStyles is not a supported field in ApplyFormats and SheetUpdateClearFormats schemas requests and was incorrectly documented in the API specification. If you were previously using this field to clear value format styles from cells, please note that providing this field in your requests had no effect. Please use 2026-01-01 or later versions of the API to clear value format styles from cells. We apologize for any confusion this may have caused and thank you for your understanding.

[Information] Prototype documentation removed from site navigation
Prototype endpoints are no longer displayed in the API documentation navigation menu. These endpoints are still fully functional and any bookmarked pages or direct links will continue to work.
[Feature] Error responses now include API version
We’re making it easier for you to debug and troubleshoot your API integrations by including a helpful version field that shows exactly which API version was in use when an issue occurred. This enhancement gives you the context you need to quickly identify and resolve problems.

[Feature] Changelog introduced
Workiva is excited to introduce changelogs for this API version. From now on, you’ll find detailed documentation about API changes right here. We are committed to keeping you informed and making your integrations go as smoothly as possible. Thank you for building with us.