# Training 22 Debrief

## What made you smile?

- The x-rbac feature works as expected and is extremely useful when you want to hide certain APIs.


## What did you find confusing?

- **Documentation**: We couldn’t find information about x-rbac in the docs. I had heard about it somewhere, but otherwise, we wouldn't have found it.
- At first, the changes weren't applied. After updating the version from 0.105.0 to 0.107.3, it started working.