diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index e7b2d15b4e..ce2f1dac80 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -380,6 +380,13 @@ Changelog
  * Maintenance: Remove support for Django 4.1 and below (Sage Abdullah)
 
 
+5.2.6 (xx.xx.xxxx) - IN DEVELOPMENT
+~~~~~~~~~~~~~~~~~~
+
+ * Fix: Fix image preview when Willow optimizers are enabled (Alex Tomkins)
+ * Maintenance: Remove django-pattern-library upper bound in testing dependencies (Sage Abdullah)
+
+
 5.2.5 (01.05.2024)
 ~~~~~~~~~~~~~~~~~~
 
diff --git a/docs/releases/5.2.6.md b/docs/releases/5.2.6.md
new file mode 100644
index 0000000000..d47a0dd4de
--- /dev/null
+++ b/docs/releases/5.2.6.md
@@ -0,0 +1,21 @@
+# Wagtail 5.2.6 release notes - IN DEVELOPMENT
+
+_Unreleased_
+
+```{contents}
+---
+local:
+depth: 1
+---
+```
+
+## What's new
+
+### Bug fixes
+
+ * Fix image preview when Willow optimizers are enabled (Alex Tomkins)
+
+
+### Maintenance
+
+ * Remove django-pattern-library upper bound in testing dependencies (Sage Abdullah)
diff --git a/docs/releases/index.rst b/docs/releases/index.rst
index cbee02acf3..415d8c13f6 100644
--- a/docs/releases/index.rst
+++ b/docs/releases/index.rst
@@ -15,6 +15,7 @@ Release notes
    6.0.2
    6.0.1
    6.0
+   5.2.6
    5.2.5
    5.2.4
    5.2.3