===WRITEBACK===
{{Mark|Updated with Version 7.8:}} only applies to main-memory document instances.
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| '''Summary'''
|Updates Propagates updates on XML nodes are written main-memory instances of files that have been retrieved via {{Code|fn:doc}} or {{Code|fn:collection}} back to the input filesdisk. No backups of your original files will be created if this option is turned on. This option can also be activated on [[Command-Line Options#BaseX Standalone|command line]] via <code>-u</code>.
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