For a complete list of changes in Unify v1.6.x, please see the official Change Log.
The following sections of this manual were changed for Unify v1.6.0/1.6.1:
Another change was made for Unify v1.6.2:
The following whole new pages were added for Unify 1.6.0/1.6.1:
Please note this is not an exhaustive list. Various smaller changes are not listed. In general, if you're looking for documentation of any feature, you will normally find it on the same page as related features. You can also enter “1.6” (including the quotation marks) into the search-box at the top-right corner of any page and hit Enter to see a list of pages where the exact text “1.6” appears.