> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://developers.hellosign.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developers.hellosign.com/_mcp/server.

## Features

* Added documentation for the `409 Conflict` response returned by the `signature_request/update` [endpoint](https://developers.hellosign.com/api/signature-request/update) requests.

* Increased the maximum recipient name length from 100 to 255 characters.

## Fixes

* API [error names](https://developers.hellosign.com/api/manual-reference-pages/warnings-and-errors#error-names) remain strings to preserve compatibility with existing SDK integrations.

* Improved audit-trail IP address retention for bulk-send and expired requests.

* Improved OneDrive setup retry handling.

* Resolved OIDC `503` errors and a Microsoft add-in initialization race condition.