The main site menu has been updated so the two new versions (and the old version) of the manual content can be accessed through the ‘Content’ heading on the main menu.
As the previous ‘Search’ and ‘Index’ headings on the main menu only are only relevant to the old manual content (that is no longer being updated), they have been removed from the main site menu. The ‘Search’ and ‘Index’ features for the old version are still available from the menu in the header of every page of the old version.