diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6b4f9a7..0ba33e7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
# Changelog
+## 1.3.11 (2023-03-28)
+* freezePanes( corner_cell ) - freezePanes to keep an area of a worksheet visible while you scroll, corner_cell is not included.
+
## 1.3.10 (2022-12-14)
* added borders `````` see colored [examples](https://github.com/shuchkin/simplexlsxgen#formatting)
* added formulas ```SUM(B1:B10)``` see [examples](https://github.com/shuchkin/simplexlsxgen#data-types)
diff --git a/README.md b/README.md
index f092ee1..29eae8d 100644
--- a/README.md
+++ b/README.md
@@ -133,6 +133,10 @@ exit();
// Autofilter
$xlsx->autoFilter('A1:B10');
+// Freeze rows and columns from top-left corner up to, but not including,
+// the row and column of the indicated cell
+$xlsx->freezePanes('C3');
+
```
### JS array to Excel (AJAX)
```php