- add synchronous upload from URL method to `File` - UploadcareExceptions are `__repr__`'ed properly - update widget to 1.5.3 (see [widget changelog](https://github.com/uploadcare/uploadcare-widget/blob/master/HISTORY.markdown))
1.2.11
- fix "source" composition for copy requests - let configure default throttle retry count via `conf.retry_throttled`
1.2.10
- handle responses for HEAD and OPTION requests - update widget to 1.4.6