[Outlook] (item multi-select) Update pinning behavior in Outlook on Mac (#5281)

Author: samantharamon

docs/outlook/item-multi-select.md

@@ -1,7 +1,7 @@
 ---
 title: Activate your Outlook add-in on multiple messages
 description: Learn how to activate your Outlook add-in when multiple messages are selected.
-ms.date: 03/19/2025
+ms.date: 07/15/2025
 ms.topic: how-to
 ms.localizationpriority: medium
 ---
@@ -382,9 +382,9 @@ Item multi-select supports [Conversations view](https://support.microsoft.com/of
 
 ### Task pane pinning in multi-select add-ins
 
-In Outlook on the web and in new Outlook on Windows, when the task pane of a multi-select add-in is opened, it's automatically pinned to the Outlook client. It remains pinned even when a user switches to a different mail item or selects the **pin** icon from the task pane. The task pane can only be closed by selecting the **Close** button from the task pane.
+In Outlook on the web, on Mac, and in new Outlook on Windows, when the task pane of a multi-select add-in is opened, it's automatically pinned to the Outlook client. It remains pinned even when a user switches to a different mail item or selects the **pin** icon from the task pane. The task pane can only be closed by selecting the **Close** button from the task pane.
 
-Conversely, in Outlook on Windows (classic) and on Mac, the task pane isn't automatically pinned and closes when a user switches to a different mail item.
+Conversely, in classic Outlook on Windows, the task pane isn't automatically pinned and closes when a user switches to a different mail item.
 
 ## Next steps