diff --git a/CHANGELOG b/CHANGELOG
index fc9adc44b..1a01b6e10 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,11 @@
+sdrangel (4.14.6-1) unstable; urgency=medium
+
+   * Spectrum analyzer code reorganization
+   * FFTFactory: add mutex for thread safety. Implements issue #514
+   * SpectrumVis: release previous FFT engine allocation from FFT factory only if allocated once. Fixes issue #515
+
+ -- Edouard Griffiths, F4EXB <f4exb06@gmail.com>  Sat, 16 May 2020 06:35:17 +0200
+
 sdrangel (4.14.5-1) unstable; urgency=medium
 
    * DATV demod: applied some recent changes in leansdr
diff --git a/CMakeLists.txt b/CMakeLists.txt
index fa5487fe7..32be8fc98 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,7 +18,7 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 # configure version
 set(sdrangel_VERSION_MAJOR "4")
 set(sdrangel_VERSION_MINOR "14")
-set(sdrangel_VERSION_PATCH "5")
+set(sdrangel_VERSION_PATCH "6")
 set(sdrangel_VERSION_SUFFIX "")
 
 # SDRAngel cmake options
diff --git a/debian/changelog b/debian/changelog
index 2723e31b7..0810312e4 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,11 @@
+sdrangel (4.14.6-1) unstable; urgency=medium
+
+   * Spectrum analyzer code reorganization
+   * FFTFactory: add mutex for thread safety. Implements issue #514
+   * SpectrumVis: release previous FFT engine allocation from FFT factory only if allocated once. Fixes issue #515
+
+ -- Edouard Griffiths, F4EXB <f4exb06@gmail.com>  Sat, 16 May 2020 06:35:17 +0200
+
 sdrangel (4.14.5-1) unstable; urgency=medium
 
    * DATV demod: applied some recent changes in leansdr