I updated my texlive distribution today. After compiling my presentation I realised, that the
Boadilla theme has no footline any more. A look in the documentation shows, that nearly every theme in chapter 15.2 lost its footline. However, a closer look shows, that the place for the footline with respect to the navigation symbols is kept free. These symbols are directly at the bottom of a template with no footline. Compare for instance
EastLansing from version 3.27:
EastLansing from version 3.28:
The space between the navigation symbols and the bottom is much higher than in
Pittsburgh from version 3.28:
Is this a bug, or do I miss an option to enable the footline?