The Morse code tutor, aldo now includes support for additional punctuation, better sound card selection, and uses a new Koch sequence.
fldigi 3.20.20 includes a large number of changes, new features and bug fixes. Review http://www.w1hkj.com/Fldigi.html for a complete list of features and http://www.w1hkj.com/downloads/fldigi-flarq/fldigi_changes.txt for the change log.
linpsk now includes support for RTTY and MFSK, and uses a new graphics layer to improve performance. Logging may be done through LinLog.
xwxapt has been upgraded to version 2. The sound card code has been dramatically rewritten and should reduce issues with sound cards.