     2.3.0  TBD...

       NEW: Support for setting analog bandwidth of receivers that support it.
       NEW: Support for setting gain stages individually.
       NEW: Remember visibility status of main toolbar.
       NEW: Restore the geometry of the main window between sessions.
       NEW: Restore the state and placement of the dock windows.
       NEW: Nuand BladeRF support.
       NEW: RF Space SDR-IQ, SDR-IP and Netsdr support.
       NEW: Airspy support.
       NEW: Peak detection on the FFT plot.
       NEW: Max hold on the FFT plot.
       NEW: Audio streaming over UDP socket.
       NEW: Remote control through TCP socket.
       NEW: Set squelch level from current signal/noise level.
       NEW: Command line option to list existing configurations.
       NEW: I/Q recording and playback.
     FIXED: Incorrect handling of decimal values in LNB LO frequency.
     FIXED: Correctly apply initial LNB LO frequency.
     FIXED: Audio output device selection on Mac OS X.
     FIXED: Properly store settings when using Save As function.
     FIXED: Crash when recording audio whith no rec directory set.
     FIXED: Only allow audio playback while DSP is running.
  IMPROVED: Gqrx can fit on small screens (900x600 pixels).
  IMPROVED: Better color gradient for the waterfall.
  IMPROVED: FFT presentation at high rates and high sizes.


     2.2.0  Released August 8, 2013

       NEW: Official Ubuntu PPA and Mac OS X app bundle.
       NEW: Allow using audio output devices other than the default.
       NEW: Automatic I/Q phase and gain correction (requires gr-iqbal).
       NEW: Qt 5 support.
       NEW: GNU Radio 3.7 support.
       NEW: HackRF Jawbreaker support.
       NEW: Funcube Dongle Pro+ support.
       NEW: Option to select antenna connector on e.g. USRP devices.
       NEW: Configuration option to choose location of WAV recordings.
       NEW: Uses gr-audio as default on all platform (pulseaudio still possible).
       NEW: Command line option to remove configuration file.
       NEW: Command line option to launch I/O device editor before application.
     FIXED: Frequency control widget with recent Qt was broken.
     FIXED: Bug that caused audio FFT data to be leaked into the I/Q FFT.
     FIXED: Audio recording & playback.
     FIXED: Proper handling of frequencies above 2147483647 Hz. 
  IMPROVED: Y-axis panning (click-and-drag).
  IMPROVED: Rescale waterfall when resizing the main window.
  IMPROVED: gr-audio support on Linux.
  IMPROVED: Audio gain setting no longer has impact on WAV recording.


   2.1.251  Released on March 1, 2013

     FIXED: Incorrect device selection in config dialog.


   2.1.246  Released on February 29, 2013

       NEW: I/Q swapping option.
       NEW: FFT video filter with non-linear gain (still WIP).
       NEW: Save and restore FFT settings.
       NEW: Save and restore receiver options (offset, mode and squelch level).
       NEW: AM DC removal using IIR filter.
     FIXED: Removed graphics redraw delay when changing frequency or demodulator.
     FIXED: Respect RF frequency range of input device.
     FIXED: Added workaround for pixel error introduced in Qt 4.8.
     FIXED: Crash when FFT size is smaller than plot width.
     FIXED: Show correct initial filter preset in filter selector.
     FIXED: Workaround for 'jerky streaming' when DSP is started using rtlsdr.
     FIXED: Freeze when channel filter becomes too narrow in AM and FM modes.
     FIXED: Crash when changing sample rate of the current input device.
   CHANGED: Show device ID (e.g. rtl=0) in title bar instead of description.
  IMPROVED: AGC settings moved to dialog window.
  IMPROVED: Increase LO resolution to 1 Hz.
  IMPROVED: GUI layout fixes for Mac OS X.
  IMPROVED: Shortcuts for resetting and re-centering FFT plot after zooming.
  IMPROVED: Crash recovery in case of bad config file.
  IMPROVED: Support 50 fps FFT rate and allow disabling FFT.
  IMPROVED: I/Q DC canceling.


   2.1.148  Released on December 9, 2012

       NEW: Support for USRP and RTL2832U (rtlsdr) devices.
       NEW: Pan & zoom on the pandapter axes.
       NEW: Allow changing FFT size.
     FIXED: Mac OS X compatibility.
  IMPROVED: Various improvements to the user iterface.


     2.0.0  Released on July 7, 2012
       
       First stable release of C++ version with Funcube Dongle support.


     1.x

       Initial experiments using Python and gr-qtgui.

