Signed webhooks
Each webhook payload now can be signed with a secret to ensure that the request comes from the expected sender. The resulting signature is included in the request header, so you can use it to validate that the request comes from Uploadcare.
https://uploadcare.com/docs/security/secure-webhooks/
Widget configurator in Dashboard
Now you can customize and configure the uploading widget in Dashboard. Go to the Integrate section and hit File Uploader.