This document lists known errata to the Recommendation. Each entry has the following information:
Changes to the text of the spec are indicated thus: deleted text, new text, modified text.
Move the fourth paragraph of section 3.2:
The content of xi:fallback elements is ignored unless a resource error occurs while processing the surrounding xi:include element. In particular, apparent fatal errors caused by the presence, absence, or content of elements and attributes inside the xi:fallback element must not be reported in xi:fallback elements that are ignored.
to after the first paragraph--making it now the second paragraph and change the first change the first "are" to an "is".
Then change what is now the second paragraph:
The xi:fallback element can appear only as a child of an xi:include element. It is a fatal error for an xi:fallback element that is not being ignored to appear in a document anywhere other than as the direct child of the xi:include (before inclusion processing on the contents of the element.) It is a fatal error for an xi:fallback element that is not being ignored to contain any elements from the XInclude namespace other than xi:include.