With this release, the 2.0.x series reach end of life and there will thus be no 2.0.6 in the extension repository. Updating to 2.1.0 is a piece of cake. You can read more about this in the announcement of 2.1 beta1.
This release includes over 20 bugfixes. Most notable ones:
- Config switcher did not work
- InsertTags in document number did not work
- Shipping and payment issues in cart
- Upload attribute and file tree attribute in the front end
- Product filter did not work with checkboxes
- Notification issues with document number