WSJT-X/doc/user_guide/en/new_features.adoc

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=== New in Version {VERSION}
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,
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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. We now provide a separate
installation package for 64-bit Windows Vista and later, offering
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significant improvements in decoding speed.
=== Documentation Conventions
In this manual the following icons call attention to particular types
of information:
NOTE: *Notes* containing information that may be of interest to
particular classes of users.
TIP: *Tips* on program features or capabilities that might otherwise be
overlooked.
IMPORTANT: *Warnings* about usage that could lead to undesired
consequences.
=== How You Can Contribute
_WSJT-X_ is part of an open-source project released under the
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{gnu_gpl} (GPLv3). If you have programming or documentation skills or
would like to contribute to the project in other ways, please make
your interests known to the development team. The project's
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source-code repository can be found at {devrepo}, and communication
among the developers takes place on the email reflector {devmail}.
Bug reports and suggestions for new features, improvements to the
_WSJT-X_ User Guide, etc., may also be sent to the {wsjt_yahoo_group}
email reflector. You must join the relevant group before posting to
either email list.