Latest stable is 2.1.0
The most important feature added to WSJT-X since Version 2.0.1 is the new FT4 protocol, designed especially for radio contesting. It has T/R sequence length 7.5 s, bandwidth 80 Hz, and threshold sensitivity -17.5 dB. Version 2.1.0 also has improvements to FT8 waveform generation, waterfall and spectrum display, contest logging, rig control, the user interface, keyboard shortcuts, UDP messaging for inter-program communication, and accessibility, as well as a number of more minor enhancements and bug fixes.
A commit references this bug:
Date: Sat Aug 31 05:43:38 UTC 2019
New revision: 510317
comms/wsjtx: Update 2.0.1 -> 2.1.0
Requested by: kunda <email@example.com>