I tried Celestia 1.4 today, and I noticed couple of things....
The screen update is very slow with new vesion compared with 1.3.2. (which is very smooth on the same computer (NEC Versa P520) and responsive to commands such as closer or further (crtl left_button_mouse up or down).
Also, the orbit of binary stars are not visible (for instance Sirius A, B - it is obvious that Sirius B orbits A component when the time is set to 100000 or faster, but there is no orbit).
Also, the version number in help menu is still 1.3.2... should be 1.4
Most likely that was noticed by others, but still I decided to tell you about it..
My best regards, Bojan