diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 65fc8f1042..56f1b84a8a 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -2,11 +2,11 @@
 <!-- SPDX-License-Identifier: Apache-2.0 -->
 Release Notes
 =============
-## Version 4.3.1
+## Version 4.3.2
 ### New Features in Version 4.3
 #### Command Line Tools Suite
 
-v4.3.0 contains a new suite of command line tools accessed via an umbrella `ktx` command.
+v4.3 contains a new suite of command line tools accessed via an umbrella `ktx` command.
 
 | Tool | Description | Equivalent old tool |
 | :--- | ----------- | ------------------- |
@@ -50,7 +50,14 @@ Thanks to @aqnuep and @VaderY of [RasterGrid](https://www.rastergrid.com/) for t
 #### Python Binding
 A Python binding for `libktx` has been added. Applications written in Python can now use `libktx` functions. The package can be installed via `pip install pyktx[==4.3.0]`. Huge thanks to @ShukantPal.
 
-### Changes
+### Notable Changes since v4.3.1
+
+* The `ktx` tool suite and `libktx` have been made compliant with Revision 3 of the KTX v2 specification:
+  * typeSize for formats with _mPACKxx suffix has been fixed. It is now xx/8.
+  * YCbCr 2-plane 4:4:4 formats recently added to Vulkan have been prohibited.
+  * `A8B8G8R8_PACK32` and `R16G16_S10_5_NV` formats are now allowed.
+
+### Notable Changes in v4.3
 
 * `libktx` has been made much more robust to errors in KTX files.
 * `libktx` now validates checksums when present in a Zstd data stream.
@@ -59,6 +66,7 @@ A Python binding for `libktx` has been added. Applications written in Python can
 with multi-byte code-points. Previously such names did not work on Windows.
 * The Vulkan texture uploader can now optionally be used with an extenal memory allocator such as [VulkanMemoryAllocator](https://gpuopen.com/vulkan-memory-allocator/).
 
+
 ### Known Issues
 
 * Some image bits in output files encoded to ASTC, ETC1S/Basis-LZ or UASTC on arm64 devices may differ from those encoded from the same input images on x86_64 devices. The differences will not be human visible and will only show up in bit-exact comparisons. 
@@ -72,6 +80,38 @@ with multi-byte code-points. Previously such names did not work on Windows.
 * Neither the Vulkan nor GL loaders support depth/stencil textures.
 
 
+### Changes since v4.3.1 (by part)
+### libktx
+
+* Flesh out support for VK\_FORMAT\_R16G16\_S10\_5\_NV. (#864) (42dfae5cf) (@MarkCallow)
+
+* Allow A8B8G8R8 formats. (#861) (5ac5cf126) (@MarkCallow)
+
+* Fix recreateBytesPlane0 and add test (#856) (83b6386df) (@MarkCallow)
+
+* Fix mPACKn formats (#858) (dacd9934e) (@aqnuep)
+
+* Prevent warning if VK\_NO\_PROTOTYPES is already defined (#855) (d2d63f0aa) (@jherico)
+
+### Tools
+
+* Allow A8B8G8R8 formats. (#861) (5ac5cf126) (@MarkCallow)
+
+* Fix mPACKn formats (#858) (dacd9934e) (@aqnuep)
+
+
+
+
+
+### Java Wrapper
+
+* Allow A8B8G8R8 formats. (#861) (5ac5cf126) (@MarkCallow)
+
+
+## Version 4.3.1
+
+
+
 ### Changes since v4.3.0 (by part)