diff --git a/CHANGELOG.md b/CHANGELOG.md
index cb86f428d22704687b8c7d2cf6d287ff744f9685..b0f6b44f1e5de529e458927562f651589f1fa533 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,7 @@ This changelog aims to follow the guiding principles of
   - 2-channel s16 and s16+u16 fixed-point coordinates and 1-channel u8 input.
   - 2-channel s16 + 5+5 bits' fractions fixed-point coordinates and 1-channel u8 input.
 - Implementation for cv::pyrDown in the OpenCV HAL.
+- Sum implementation for 1-channel f32 input (not exposed to OpenCV)
 
 ## 0.2.0 - 2024-09-30