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Changelog

Updates, changes, and improvements at Retool.

Action Required: Update Slack queries using files.upload

As of March 12, 2025, this workaround is no longer required. Refer to Updates to Slack connector to support file upload for more information.

Slack is ending support for their files.upload API on March 11, 2025. Refer to the Slack changelog for more information.

Retool is working to update our Slack integration as quickly as possible. In the meantime, if you need files.upload functionality, you can use a REST Query to utilize the new files.getUploadURLExternal and files.completeUploadExternal APIs.

This workaround is temporary, and Retool will restore access to file upload functionality within the Slack integration as soon as possible. Another changelog post will be made when the ability to upload files is restored. Other functionality in the Slack integration remains uninterrupted.