> For the complete documentation index, see [llms.txt](https://docs.tracr.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tracr.com/release-notes/tracr-1.19.0.md).
# tracr 1.19.0
## API
* Allow nullable polished fields to be set to null when updating a polished diamond via a new /v2 endpoint (see the API documentation for guidance).
* Performance and efficiency improvements.
Notes on the /v2 endpoint
* Use the new /v2 endpoint when you need to set previously nullable polished fields to null during an update.
* Refer to the API documentation for exact request/response formats and any migration guidance.
## Portal
* Fixed an issue where diamonds could not be transferred back to the participant that sent them.
* Fixed an issue with Tracr Rough Check not being transferred.
## Search
* Fixes and improvements to the GIA Grading page on search.tracr.com.
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