Here's a bug -- if you select something other than All Types (i.e. videos, music, images, documents, or programs) with the Library tab hidden, then use the view menu to show the library tab, the selection in the search tab moves back to All Types all by itself. It should only move in response to user input.

Also, Limewire 4.9.10 still sometimes randomly drops a connection (goes from all green bars to one or more red bars) while the network connection is stable and it's not starting up or shutting down. Limewire should only drop connections in response to user input.