chore: add CHANGELOG entry

hainenber · hainenber · commit f28566e301ee · 2025-08-19T22:38:24.000+07:00
Signed-off-by: hainenber &lt;dotronghai96@gmail.com&gt;
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,9 @@
 ## main
 
+# Chore
+
+- `[expect]` Update docblock for `toContain()` to display info on substring check ([#15789](https://github.com/jestjs/jest/pull/15789))
+
 ## 30.0.5
 
 ### Features
