For translation management there is a new simple markup rule:
<translation [[HomePage]] 51>
It is placed on the translated page. The original page is left as is.
This reads: translation of HomePage, revision 51. It is displayed as:
This page is a translation of HomePage: The translation is up to date.
If the revision of the original page increments a hint is displayed on the translated page.
This page is a translation of HomePage: The translation is outdated. (diff)
Currently two linebreaks are needed after the translation tag. It may be fixed in the near future.