=== New in Version 1.6

For quick reference, here's a short list of features and capabilities
added to _WSJT-X_ since Version 1.5.0:

- *WSPR* mode, including coordinated automatic band-hopping and a
new two-pass decoder that can decode overlapping signals.

- EME-motivated features including *JT4* (submodes *A-G*), *Echo*
mode, and automatic *Doppler tracking*.  The JT4 decoder is more
sensitive than that in the latest WSJT, and message averaging is fully
automated.  (Note that submodes *JT65B* and *JT65C* are also present
in Version 1.6, but the high-sensitivity decoder required for EME with
JT65 is not yet included.)

- Tools for accurate *frequency calibration* of your radio, so you can
be always on-frequency to within about 1 Hz.

- Mode-specific standard working frequencies accessible from the
drop-down band selector.

- A number of corrections have been made to the Hamlib library, thereby
fixing balky rig-control features.  A few unreliable features peculiar
to particular radios have been removed.
 
=== Future releases

Much work has already been done on Version 1.7 of _WSJT-X_.  (Up to
now it has been called v1.6.1.)  More than 100 people have been
building this version for themselves, as development progresses, and
reporting on their experiences.  The next release will likely have the
following features not present in Version 1.6.0, and perhaps others as
well:

- *JTMSK* mode, intended for meteor scatter, ionospheric scatter,
aircraft scatter, and the like.  Unlike the FSK441, ISCAT, and JTMS
modes present in the older program _WSJT_, *JTMSK* uses strong forward
error correction and structured messages identical to those in JT4,
JT9, and JT65.

- A significantly improved decoder for JT65, especially advantageous
when used in crowded HF bands.  Starting with Version 1.7, _WSJT-X_
will longer use the patented, closed-source Koetter-Vardy algorithm.