diff --git a/CHANGELOG b/CHANGELOG
index 1388097ee..be3bedf54 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,11 @@
+sdrangel (5.6.0-1) unstable; urgency=medium
+
+   * Websocket spectrum server. Implements issue #224
+   * 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>  Sun, 10 May 2020 23:01:15 +0200
+
 sdrangel (5.5.0-1) unstable; urgency=medium
 
    * LimeSDR MIMO support. Implements issue #462
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 09ade2618..b8cbbce34 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,7 +17,7 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 
 # configure version
 set(sdrangel_VERSION_MAJOR "5")
-set(sdrangel_VERSION_MINOR "5")
+set(sdrangel_VERSION_MINOR "6")
 set(sdrangel_VERSION_PATCH "0")
 set(sdrangel_VERSION_SUFFIX "")
 
diff --git a/debian/changelog b/debian/changelog
index 7f80c71fb..d1078c939 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,11 @@
+sdrangel (5.6.0-1) unstable; urgency=medium
+
+   * Websocket spectrum server. Implements issue #224
+   * 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>  Sun, 10 May 2020 23:01:15 +0200
+
 sdrangel (5.5.0-1) unstable; urgency=medium
 
    * LimeSDR MIMO support. Implements issue #462