Bump version to 1.4.0.0b1

Changes.md

@@ -1,16 +1,23 @@
-1.x.x.x (relative to 1.3.x.x)
+1.4.x.x (relative to 1.4.0.0b1)
 =======
 
+
+
+1.4.0.0b1 (relative to 1.3.x.x)
+=========
+
 > Note : This release introduces `linux-gcc11` builds which are only compatible with Linux distributions using glibc 2.28 or higher.
 > These specific `linux-gcc11` builds are intended for testing purposes while we upgrade our toolchain and dependencies to better align
 > with VFX Platform 2023, and should be considered "beta" in advance of a stable release in Gaffer 1.5.
 
+> Known bugs : Gaffer may crash when stopping an InteractiveCyclesRender with the CPU device and SVM shading mode. A fix is in progress.
+
 Features
 --------
 
 - Cycles :
   - Updated to version 4.0.2.
-  - Added support for CUDA and Optix devices.
+  - Added support for CUDA and Optix devices (GCC 11 builds only).
 - Dispatcher : Dispatchers are now TaskNodes, allowing them to be nested in a task graph. Possibilities include :
   - Using a LocalDispatcher and a Wedge to launch multiple TractorDispatcher jobs.
   - Using a nested LocalDispatcher to perform a group of tasks on a single blade within a TractorDispatcher job.

SConstruct

@@ -64,7 +64,7 @@ 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 = "" # used for alpha/beta releases : "a1", "b2", etc.
+gafferVersionSuffix = "b1" # 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