This thread describes the last batch of updates to the 9.0.164.x series of builds which were merged to 9.0.165.
The build can be downloaded from the Product Downloads page.
Right-clicking the caption of the active subpane in the Contents pane brings up the drop-down menu, similarly to left-click.
The File - Print command used by layouts is bound to Ctrl-P.
The advanced rendering engine supports area patterns. Area patterns are automatically scaled during printing (no more invisibly thin lines). The elements of area patterns are rendered with antialiasing. (More coming in 9.0.165.x.)
End of list.