AWS S3 Frankfurt region not working

Issue #214 new
Andreas Schilling created an issue

Using Frankfurt region (Germany) with django-storages produces HTTP 400 error. S3 in the the new region supports only Signature Version 4. In all other regions, Amazon S3 supports both Signature Version 4 and Signature Version 2.

I assume django-storages only supports Signature Version 2. Is there any chance to support Version 4?