| Annotating an atomic means casting it. |
| The lexical space of date/dateTime/time was extended to support RFC 2822. |
| Local types have no prefix. |
| The URI Qualified Name syntax may also be used to reference types. |
| $optional is ignored if a $default is provided for a pair. |
| Added $about field to Schema and Types for free content. |
| The Input of the Validation and Annotation processes is now a JDM instance (typically freshly parsed). |
| $layout and $member-types were renamed to $content |
| The special key $any was removed from object $content. JSONiq constraints can be used instead. |
| Default values can be computed with a JSONiq query. |
