Updating my Ubuntu 14.04 LTS today also installed a new skypeforlinux 8.13.0.2 replacing 8.11.0.4.

skypeforlinux 8.13.0.2 does not start, I just get a blank with a menu bar. The menu entries are selectable, but nothing appears to happen. 

Starting the new skypeforlinux from the command line does not produce any output in the terminal window.