diff --git a/CHANGELOG.md b/CHANGELOG.md
index 787c5d25..e6237272 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -53,7 +53,8 @@ eive-tmtc version: v2.12.0
 ## Changed
 
 - Update ACS scheduling to represent the actual ACS design. There is one ACS PST now for all
-  timing sensitive ACS operations.
+  timing sensitive ACS operations. In the debug builds, the new ACS polling sequence table
+  will have a period of 0.6 seconds, but will remain 0.4 seconds for the release build.
   PR: https://egit.irs.uni-stuttgart.de/eive/eive-obsw/pulls/365
 - `ACS::SensorValues` is now an ACS controller member to reduce the risk of stack overflow.
 - ACS Subsystem Sequence Mode IDs updated.