diff --git a/Changes.md b/Changes.md
index 129607e90a0..caa87a2d654 100644
--- a/Changes.md
+++ b/Changes.md
@@ -1,6 +1,11 @@
-1.4.x.x (relative to 1.4.0.0b5)
+1.4.x.x (relative to 1.4.0.0b6)
 =======
 
+
+
+1.4.0.0b6 (relative to 1.4.0.0b5)
+=========
+
 Features
 --------
 
diff --git a/SConstruct b/SConstruct
index b9ed88ccf97..265463c3d23 100644
--- a/SConstruct
+++ b/SConstruct
@@ -65,7 +65,7 @@ gafferMilestoneVersion = 1 # for announcing major milestones - may contain all o
 gafferMajorVersion = 4 # backwards-incompatible changes
 gafferMinorVersion = 0 # new backwards-compatible features
 gafferPatchVersion = 0 # bug fixes
-gafferVersionSuffix = "b5" # used for alpha/beta releases : "a1", "b2", etc.
+gafferVersionSuffix = "b6" # used for alpha/beta releases : "a1", "b2", etc.
 
 # All of the following must be considered when determining
 # whether or not a change is backwards-compatible