New version of FT8

Older "release candidate" versions of WSJT-X 2.0 ceased to work as from today. The latest version is "rc5" which is expected to be very close to the released version due soon.

With "rc5" a new protocol has been introduced. If people are using older "rc" versions FT8 signals will be treated as noise and will not decode. On 160m I have seen several signals already that have not decoded.

So, it is important that FT8 users upgrade right away to WSJT-X 2.0 rc5. Do it now!!

See http://physics.princeton.edu/pulsar/K1JT/wsjtx.html