(17.06.2012) Revision:2173 -> Final (Release Notes)
- removed legacy code for R4.x legacy versions
- removed upgrade routine for R4.x legacy versions
- creates a new page not just with the default language
- ##monospace## now uses <code> instead of <tt>
- display link to show files / comments only if there is one or/and user has the right to add a new one
Note that the changelog is usually incomplete, for a complete list of changes that went into R5.1, you can browse the Mercurial log, the Bug Tracker Log and ToDo list.