diff --git a/CHANGELOG.md b/CHANGELOG.md
index 18ef579e04d33981b088e2dd63df3029b0126430..a99014137a875aaad9e056bd74a0b9c6c8459232 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,6 +27,7 @@ This changelog aims to follow the guiding principles of
   Previously the build scripts had additional checks that attempted to identify whether the compiler supported SVE2/SME2 - these checks have been removed.
 - The default setting for `KLEIDICV_ENABLE_SVE2` is on for some popular compilers known to support SVE2, otherwise off.
 - `KLEIDICV_ENABLE_SME2` defaults to off. This is because the ACLE SME specification has not yet been finalized.
+- In the OpenCV HAL, cvtColor for gray-RGBA & BGRA-RGBA are multithreaded.
 
 ## 0.2.0 - 2024-09-30