9.6.3 The synced-with link
Each version of a language variant can link to another language variant version with which it is “in-sync”. Being “in-sync” means the content of the language variant corresponds to the content of the other language variant version. The other language variant will normally be the reference language variant.
The synced-with pointer cannot point to non-existing language variants or versions, nor to the same language variant. Circular references are possible, though can't cause harm nor be useful.
The synced-with pointer of a version can be updated after version creation (for the case you would have made an error or forgot to set it).
In the Daisy Wiki, if the reference language for a document is set, the document editor will show GUI elements to set the synced-with value. The synced-with can be modified later on through the version overview screen.