diff --git a/CHANGELOG.md b/CHANGELOG.md
index b3eb321..1704811 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -539,6 +539,24 @@ This was the beginning: one tank, one baby fish, and a lot more hiding below the
 
 ## Patch notes
 
+### 2026-10-10
+
+**11 October 2026**
+
+_New_
+
+- Upgrade the Conditioning Box to hold more fish and choose a Sure stay or a quicker Fast gamble.
+- Every fish has a shy, curious, playful, or greedy nature that shows in how it swims and is named on its card.
+
+_Improved_
+
+- Fish cards show food, growth, and health in large rows, with tips that fit on two lines.
+- Fish cards open wide on sideways phones, and the Journal, Aquariums, and Map sit in one column on phones.
+
+_Fixed_
+
+- Opening the Journal from a fish card now closes the card behind it.
+
 ### 2026-10-09
 
 **10 October 2026**