> For the complete documentation index, see [llms.txt](https://docs.datasaur.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.datasaur.ai/compatibility-and-updates/release-notes/version-6/6.21.0.md).

# 6.21.0

Jul 20, 2023

## **What's new** 💡

* Reviewers now can receive email notifications when certain numbers of labelers have finished their labeling projects.
* We now support a radio button as a new question type in both row labeling and document labeling projects.
* We have differentiated the UI style for ML Assisted and human-generated labels, improving the user experience in row labeling project.

## **Bug fixes** 🐞

* Fixed an issue where the answer draft was not discarded properly for dropdown, hierarchical dropdown, date, and time questions.
* Fixed an issue where the screen would go blank when labelers submitted a checkbox answer in a row labeling project.
* Fixed an issue where the screen would go blank when playing an audio file using a specific file transformer.
* Fixed an issue where project template icons were not updated after refreshing the page.