Supported Features from XML Schema 1.1
Integration Server supports the following features added in XML Schema 1.1:

Enhancements to the all content model

maxOccurs > 1

Wildcards

Nested all content model references

New simple types:

dateTimeStamp

dayTimeDuration

yearMonthDuration

New constraining facets:

assertion

explicitTimeZone

New attributes on existing components:

defultAttributes on schema

xpathDefaultNamespace on schema

defaultAttributesApply on complexType

New attributes on all components for conditional composition:

typeUnavailable

facetUnavailable

New attributes on the any and anyAttribute wildcards:

notQName

notNamespace