Here is a quote from them.

Whats New in Version 4.6?
Internet radio recording:
  Have you ever been listening to an internet radio station and a song or 
program
is coming up you know you want to listen to again? Now you can with the 
simple press
of a button. When you hear something on an internet radio station that you 
want to
record, simply press the record button to start the recording of that 
station. Press
it again to conclude the recording session.
Improvements to Wikipedia / Wiktionary
  functionality to support search resulting in more than one article
Add function to move and delete all episodes of a podcast feed.
  Now you can quickly clear out old podcast episodes if you want to make 
additional
space, or simply move them to the external SD card.
Introduced additional text to speech voices in specific languages:
  Manon  French, Claudia  German, Lisa  Australian English, Laia  Catalan
Daisy Online support:
  In specific countries, libraries are using the Daisy On-Line Delivery 
protocol.
This support has been added for those and additional libraries who will 
offer content
using this delivery method to media players such as the Stream.
Other stability enhancements and improvements.

73
Butch
WA0VJR
Node 3148
Wallace, ks.