Update README

- Update change log.
- Update main branch warnings.

Resolves: COMPMID-5265

Change-Id: I571e56e46562af1a6959904b8181cbd6b6c069b9
Signed-off-by: Adnan AlSinan <adnan.alsinan@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/7585
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Sheri Zhang <sheri.zhang@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/docs/user_guide/release_version_and_change_log.dox b/docs/user_guide/release_version_and_change_log.dox
index 2f44ad7..3632b27 100644
--- a/docs/user_guide/release_version_and_change_log.dox
+++ b/docs/user_guide/release_version_and_change_log.dox
@@ -37,10 +37,32 @@
 	v17.04 (First release of April 2017)
 
 @note We're aiming at releasing one major public release with new features per quarter. All releases in between will only contain bug fixes.
-@note Starting from next release (22.05), 'master' branch will no longer be used, it will be replaced by 'main'. Please update your clone jobs accordingly.
+@note Starting from this release (22.05), 'master' branch will no longer be used, it has been replaced by 'main'. Please update your clone jobs accordingly.
 
 @section S2_2_changelog Changelog
 
+v22.05 Public major release
+ - Various bug fixes.
+ - Various optimizations.
+ - Add support for NDK r23b.
+ - Inclusive language adjustment. Please refer to @ref S5_0_inc_lang for details.
+ - New Arm® Neon™ kernels / functions :
+   - \link opencl::kernels::ClPool3dKernel ClPool3dKernel \endlink
+ - New OpenCL kernels / functions :
+   - \link cpu::kernels::CpuPool3dKernel CpuPool3dKernel \endlink
+ - Improve the start-up times for the following OpenCL kernels:
+   - \link opencl::kernels::ClWinogradInputTransformKernel ClWinogradInputTransformKernel \endlink
+   - \link opencl::kernels::ClWinogradOutputTransformKernel ClWinogradOutputTransformKernel \endlink
+   - \link opencl::kernels::ClWinogradFilterTransformKernel ClWinogradFilterTransformKernel \endlink
+   - \link opencl::kernels::ClHeightConcatenateKernel ClHeightConcatenateKernel \endlink
+ - Decouple the implementation of the following Cpu kernels into various data types (fp32, fp16, int):
+   - \link cpu::kernels::CpuDirectConv2dKernel CpuDirectConv2dKernel \endlink
+   - \link cpu::kernels::CpuDepthwiseConv2dNativeKernel CpuDepthwiseConv2dNativeKernel \endlink
+   - \link cpu::kernels::CpuGemmMatrixAdditionKernel CpuGemmMatrixAdditionKernel \endlink
+   - \link cpu::kernels::CpuGemmMatrixMultiplyKernel CpuGemmMatrixMultiplyKernel \endlink
+   - @ref NEFuseBatchNormalizationKernel
+   - @ref NEL2NormalizeLayerKernel
+
 v22.02 Public major release
  - Various bug fixes.
  - Various optimizations.