Details of each erratum are in the DFDL Errata Document which can be found at the Open Grid Forum DFDL site.
The DFDL specification allows subsetting of the features in compliant implementations. Daffodil is also an evolving and improving open-source software system.
This page lists which of the official DFDL v1.0.3 spec Errata have been implemented by Daffodil.
Release 0.11.0 (Note: This entry under construction)
...