diff --git a/Catalog/lib/category/hierarchy.php b/Catalog/lib/category/hierarchy.php
index 8e23754f6..3cf6d60c2 100644
--- a/Catalog/lib/category/hierarchy.php
+++ b/Catalog/lib/category/hierarchy.php
@@ -1,6 +1,16 @@
 <?php
 use Magento\Catalog\Model\Category as C;
 
+/**
+ * 2024-03-10
+ * "The result of `Magento\Catalog\Model\Category::getParentCategories()` always includes the caller":
+ * https://mage2.pro/t/6429
+ * @return C|null
+ */
+function df_category_ancestor_at_level(C $c, int $l) {return $l > ($l2 = df_category_level($c)) ? null : (
+	$l === $l2 ? $c : df_category($c->getPathIds()[$l])
+);}
+
 /**
  * 2024-03-10
  * 1) @uses \Magento\Catalog\Model\Category::getLevel() can return a string (e.g., "3").
@@ -8,6 +18,7 @@
  * 2.2) Level 1: «Default Category» (undeletable, can be renamed).
  * @used-by cb_category_is_l2() (https://github.com/cabinetsbay/site/issues/98)
  * @used-by cb_category_is_l3() (https://github.com/cabinetsbay/site/issues/98)
+ * @used-by df_category_ancestor_at_level()
  * @used-by \Sharapov\Cabinetsbay\Block\Category\View::getRootCategoryName() (https://github.com/cabinetsbay/site/issues/98)
  * @used-by \Sharapov\Cabinetsbay\Block\Category\View::level() (https://github.com/cabinetsbay/site/issues/98)
  * @used-by \Sharapov\Cabinetsbay\Block\Category\View::l3() (https://github.com/cabinetsbay/site/issues/98)
diff --git a/Catalog/lib/category/main.php b/Catalog/lib/category/main.php
index 3a8c94e82..828249479 100644
--- a/Catalog/lib/category/main.php
+++ b/Catalog/lib/category/main.php
@@ -10,6 +10,7 @@
 /**
  * 2019-09-08
  * @see df_product()
+ * @used-by df_category_ancestor_at_level()
  * @used-by df_category_children()
  * @used-by df_category_children_map()
  * @used-by \Sharapov\Cabinetsbay\Block\Category\View::l3() (https://github.com/cabinetsbay/site/issues/98)
diff --git a/composer.json b/composer.json
index 5dec3b9bc..5240dda63 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
 	"name": "mage2pro/core"
-	,"version": "10.7.2"
+	,"version": "10.7.3"
 	,"description": "Mage2.PRO core package."
 	,"type": "magento2-module"
 	,"homepage": "https://mage2.pro"