Windows Phone 8.1 supports installation of Apps and Games to the SD card, but just as we posted earlier, developers will have the choice to whether allow the installation to the SD card or not. When I updated to Windows Phone 8.1, I was able to move all of the apps (except system apps) and games to the SD card.
If you were wondering how to install/move Apps to the SD card, check out this video by Kamal or else this written post by me at TechMesto.