chore(*): update the changelog

Author: hanastasov

CHANGELOG.md

@@ -2,6 +2,12 @@
 
 All notable changes for each version of this project will be documented in this file.
 
+## 12.2.1
+
+### New Features
+- `igxGrid`, `igxHierarchicalGrid`, `igxTreeGrid`
+    - new `rowPinned` event is emitted after a row is pinned/unpinned and grid has already refreshed its state to represent the pinned/unpinned rows in the DOM.
+
 ## 12.2.0
 
 ### New Features

projects/igniteui-angular/src/lib/grids/row.directive.ts

@@ -500,7 +500,7 @@ export class IgxRowDirective<T extends IgxGridBaseDirective & GridType> implemen
 
     /**
      * Pins the specified row.
-     * This method emits `rowPinning` event.
+     * This method emits `rowPinning`\`rowPinned` event.
      *
      * ```typescript
      * // pin the selected row from the grid
@@ -513,7 +513,7 @@ export class IgxRowDirective<T extends IgxGridBaseDirective & GridType> implemen
 
     /**
      * Unpins the specified row.
-     * This method emits `rowPinning` event.
+     * This method emits `rowPinning`\`rowPinned` event.
      *
      * ```typescript
      * // unpin the selected row from the grid