# Changes in Serialization

The output property `standalone="omit"` is now recognized. It is equivalent to omitting the property (but is useful if you need to override a value set elsewhere).

The property `omit-xml-declaration="yes"` is now respected regardless of the encoding, even if this causes the result to be ill-formed XML. This conforms with a change in the specification, made because there is sometimes a need to create fragments of XML that are subsequently concatenated or edited.

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