Fix #727, #728 and #729 (XmlWriteFeature defaults)

Author: cowtowncoder

release-notes/VERSION

@@ -14,5 +14,8 @@ Version: 3.x (for earlier see VERSION-2.x)
   `ToXmlGenerator.Feature` as `XmlWriteFeature`
 #701: Change 3.0 to use `module-info.java` directly, remove use of Moditect
 #725: Change `XmlWriteFeature.UNWRAP_ROOT_OBJECT_NODE` default to `true`
+#727: Change `XmlWriteFeature.WRITE_NULLS_AS_XSI_NIL` default to `true`
+#728: Change `XmlWriteFeature.AUTO_DETECT_XSI_TYPE` default to `true`
+#729: Change `XmlWriteFeature.WRITE_XML_SCHEMA_CONFORMING_FLOATS` default to `true`
 - Add `XmlMapper.shared()`
 - Minimum Java baseline: Java 17