diff --git a/CHANGELOG.md b/CHANGELOG.md
index f9ff1deb..f5cf3aa7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -31,6 +31,12 @@ Changes to error reporting:
 - `VulkanError` is renamed to `RuntimeError`.
 - Added new types `ValidationError` and `VulkanError` (enum of `ValidationError` + `RuntimeError`) to return errors from any function. Some existing functions have been converted to use these types, others will follow later.
 
+Changes to command buffers:
+- `SyncCommandBuffer(Builder)` is merged into `*AutoCommandBuffer(Builder)`. The commands that formerly belonged to `SyncCommandBufferBuilder` are now available as `_unchecked` versions on `AutoCommandBufferBuilder`.
+- Command buffers are now created with a wrapping `Arc` like other object types.
+- The type parameter of `PrimaryCommandBuffer` and `SecondaryCommandBuffer` is now the allocator itself (like for the builder) rather than its allocation type.
+- `UnsafeCommandBuffer(Builder)` now takes ownership of the command buffer allocation, and has a type parameter for the allocator.
+
 ### Additions
 
 - Vulkano-shaders: Added a `root_path_env` property to allow loading shaders generated by a build script.