Merge pull request #4974 from TylerMSFT/github

github 2719

Author: Jill Grant

docs/c-runtime-library/iob.md

@@ -1,14 +1,13 @@
 ---
 description: "Learn more about: _iob"
 title: "_iob"
-ms.date: "11/04/2016"
+ms.date: 07/10/2023
 api_name: ["_iob"]
 api_location: ["msvcrt.dll"]
 api_type: ["DLLExport"]
 topic_type: ["apiref"]
 f1_keywords: ["_iob", "_IOB_ENTRIES", "STDIO/_IOB_ENTRIES"]
 helpviewer_keywords: ["_iob global variable", "iob global variable"]
-ms.assetid: 008ed376-8078-4bbd-bc6c-0677c63d0ff1
 ---
 # `_iob`
 
@@ -22,8 +21,12 @@ FILE _iob[_IOB_ENTRIES];
 
 ## Remarks
 
-`_IOB_ENTRIES` is defined as 3 in `stdio.h`.
+Starting with Visual Studio 2015, `_IOB_ENTRIES` is defined as 3 with the introduction of the Universal CRT.
+It was previously defined as 20.
+
+Defined in `stdio.h`.
 
 ## See also
 
-[Global variables](./global-variables.md)
+[Global variables](./global-variables.md)\
+[Introducing the Universal CRT](https://devblogs.microsoft.com/cppblog/introducing-the-universal-crt/)