v2.2.0

• hackrf_sweep backend fixes and rate limiting (thanks to @michaellass)
• better Python 3.4 compatibility
• many Windows fixes
• installer for Windows is finally available
• allow setting gain with more precision
• soapy_power dependency is now optional (it is still required in setup.py, because it is default backend, but QSpactrumAnalyzer will now actually run even without it)

v2.1.0

• allow setting filter bandwidth and LNB LO frequency (negative for upconverters, positive for downconverters)
• show detected SoapySDR devices and info about selected device in Settings (works only for soapy_power backend)
• some improvements in GUI

v2.0.0

• switch from PyQt4 to Qt.py, QSpectrumAnalyzer now supports both PyQt4, PyQt5, PySide and PySide2 (PyQt5 is used by default)
• fix pipe used for communication with soapy_power process on Windows
• allow backend executable in Settings to be composed of multiple words (so e.g. python /path/to/soapy_power.py can by used)

v1.6.0

• use pipe for communication with soapy_power process, to avoid reading garbage from stdout (some SoapySDR drivers like LimeSDR always outputs something to stdout)

v1.5.0

• new universal soapy_power backend
• rx_power backend
• hackrf_sweep backend (wideband spectrum monitoring with sweep rate of 8 GHz/s)
• allow setting additional backends command line parameters
• show help for backends in settings