+* Removed the default value of `config.cloudServices.uploadUrl`. Closes [#12](https://github.com/ckeditor/ckeditor5-cloudservices/issues/12). ([d718e54](https://github.com/ckeditor/ckeditor5-cloudservices/commit/d718e54))
+
+### BREAKING CHANGES
+
+* The `config.cloudServices.uploadUrl` needs to be defined to your organization's CKEditor Cloud Services upload URL.