[all hosts] (Office 2016) Account for Office 2016 and 2019 reaching end of support (#2422)

* Account for Office 2016 and 2019 reaching end of support

* Update docs/requirement-sets/requirement-sets.md

Co-authored-by: Elizabeth Samuel <elizs@microsoft.com>

---------

Co-authored-by: Elizabeth Samuel <elizs@microsoft.com>

Author: AlexJerabek

docs/requirement-sets/common/dialog-api-requirement-sets.md

@@ -1,7 +1,7 @@
 ---
 title: Dialog API requirement sets
 description: Learn more about the Dialog API requirement sets.
-ms.date: 10/17/2025
+ms.date: 11/07/2025
 ms.topic: overview
 ms.localizationpriority: medium
 ---
@@ -12,15 +12,10 @@ Requirement sets are named groups of API members. Office Add-ins use requirement
 
 Office Add-ins run across multiple versions of Office. The following table lists the Dialog API requirement sets, the supported Office client applications, and the **minimum** builds or versions for those applications where applicable.
 
-| Requirement set | Office on the web | Office on Windows<br>(Microsoft 365 subscription) | Office on Windows<sup>1</sup><br>(retail perpetual) | Office on Windows<sup>1</sup><br>(volume-licensed perpetual/[LTSC](/office/dev/add-ins/resources/resources-glossary#long-term-service-channel-ltsc)) | Office on Mac | Office on iPad | Office Online Server |
+| Requirement set | Office on the web | Office on Windows<br>(Microsoft 365 subscription) | Office on Windows<sup>1</sup><br>(retail perpetual) | Office on Windows(volume-licensed perpetual/[LTSC](/office/dev/add-ins/resources/resources-glossary#long-term-service-channel-ltsc)) | Office on Mac | Office on iPad | Office Online Server |
 |:-----|:-----|:-----|:-----|:-----|:-----|:-----|:-----|
 | DialogApi 1.2 | Supported | <ul><li>Excel, Outlook (classic), PowerPoint, Word: Version 2005 (Build 12827.20268)</li><li>Outlook ([new](https://support.microsoft.com/office/656bb8d9-5a60-49b2-a98b-ba7822bc7627)): Supported</li></ul> | Version 2005 (Build 12827.20268) | Office 2021: Version 2005 (Build 12827.20268) | Version 16.37 (20051002) | Version 16.37 | Not supported |
-| DialogApi 1.1 | Supported | <ul><li>Excel, Outlook (classic), PowerPoint, Word: Version 1602 (Build 6741.0000)</li><li>Outlook (new): Supported</li></ul> | Version 1602 (Build 6741.0000) | Office 2016<sup>2</sup> | Version 15.20 | Version 1.22 | Version 1608 (Build 7601.6800) |
-
-> [!NOTE]
-> <sup>1</sup>Users of perpetual versions of Office may not have accepted all patches and updates. If so, the DLL that Office uses to report its version in the UI may be greater than the versions listed here even if the updated DLLs needed to support DialogApi haven't been installed on the user's computer. To ensure that the needed patch is installed, the user must go to the [Office 2016 update list](/officeupdates/msp-files-office-2016), search for **osfclient-x-none**, and install the listed patch.
->
-> <sup>2</sup> DialogApi 1.1 isn't supported in Outlook 2016 (volume-licensed perpetual).
+| DialogApi 1.1 | Supported | <ul><li>Excel, Outlook (classic), PowerPoint, Word: Version 1602 (Build 6741.0000)</li><li>Outlook (new): Supported</li></ul> | Version 1602 (Build 6741.0000) | Office 2021 | Version 15.20 | Version 1.22 | Version 1608 (Build 7601.6800) |
 
 ## Outlook support
 

docs/requirement-sets/common/dialog-origin-requirement-sets.md

@@ -14,7 +14,7 @@ Office Add-ins run across multiple versions of Office. The following table lists
 
 | Requirement set | Office on the web | Office on Windows<ul><li>Microsoft 365 subscription</li><li>retail perpetual</li></ul> | Office on Windows<ul><li>volume-licensed perpetual/[LTSC](/office/dev/add-ins/resources/resources-glossary#long-term-service-channel-ltsc)</li></ul> | Office on Mac | Office on iPad | Office Online Server |
 |:-----|:-----|:-----|:-----|:-----|:-----|:-----|
-| DialogOrigin 1.1 | Supported | Supported | Office 2016 | Version 16.52 (21080801) | Version 2.52 | Version 2108 (Build 10377.1000) |
+| DialogOrigin 1.1 | Supported | Supported | Office 2021 | Version 16.52 (21080801) | Version 2.52 | Version 2108 (Build 10377.1000) |
 
 ## Office versions and build numbers
 

docs/requirement-sets/common/image-coercion-requirement-sets.md

@@ -1,7 +1,7 @@
 ---
 title: Image Coercion requirement sets
 description: Support for Image Coercion requirement sets with Office Add-ins across Excel, OneNote, PowerPoint, and Word.
-ms.date: 10/17/2025
+ms.date: 11/07/2025
 ms.topic: overview
 ms.localizationpriority: medium
 ---
@@ -16,20 +16,20 @@ ImageCoercion 1.1 enables conversion to an image (`Office.CoercionType.Image`) w
 
 - Excel on Windows
   - Microsoft 365 subscription
-  - perpetual Office 2016 and later
+  - perpetual Office 2021 and later
 - Excel on Mac
 - Excel on iPad
 - OneNote on the web
 - PowerPoint on the web
 - PowerPoint on Windows
   - Microsoft 365 subscription
-  - perpetual Office 2016 and later
+  - perpetual Office 2021 and later
 - PowerPoint on Mac
 - PowerPoint on iPad
 - Word on the web
 - Word on Windows
   - Microsoft 365 subscription
-  - perpetual Office 2016 and later
+  - perpetual Office 2021 and later
 - Word on Mac
 - Word on iPad
 
@@ -39,18 +39,18 @@ ImageCoercion 1.2 enables conversion to SVG format (`Office.CoercionType.XmlSvg`
 
 - Excel on Windows
   - Microsoft 365 subscription
-  - retail perpetual Office 2016 and later
+  - retail perpetual Office 2021 and later
   - volume-licensed perpetual/[LTSC](/office/dev/add-ins/resources/resources-glossary#long-term-service-channel-ltsc) Office 2021 and later
 - Excel on Mac
 - PowerPoint on the web
 - PowerPoint on Windows
   - Microsoft 365 subscription
-  - retail perpetual Office 2016 and later
+  - retail perpetual Office 2021 and later
   - volume-licensed perpetual/LTSC Office 2021 and later
 - PowerPoint on Mac
 - Word on Windows
   - Microsoft 365 subscription
-  - retail perpetual Office 2016 and later
+  - retail perpetual Office 2021 and later
   - volume-licensed perpetual/LTSC Office 2021 and later
 - Word on Mac
 

docs/requirement-sets/excel/excel-api-requirement-sets.md

@@ -1,7 +1,7 @@
 ---
 title: Excel JavaScript API requirement sets
 description: Office Add-in requirement set information for Excel builds.
-ms.date: 10/27/2025
+ms.date: 11/07/2025
 ms.topic: overview
 ms.localizationpriority: high
 ---
@@ -12,7 +12,7 @@ Requirement sets are named groups of API members. Office Add-ins use requirement
 
 ## Requirement set availability
 
-Excel add-ins run across multiple versions of Office, including Office 2016 or later on Windows, and Office on the web, Mac, and iPad. The following table lists the Excel requirement sets, the supported Office client applications, and the **minimum** builds or versions for those applications where applicable.
+Excel add-ins run across multiple versions of Office, including Office 2021 or later on Windows, and Office on the web, Mac, and iPad. The following table lists the Excel requirement sets, the supported Office client applications, and the **minimum** builds or versions for those applications where applicable.
 
 > [!NOTE]
 > To use APIs in any of the numbered requirement sets or `ExcelApiOnline`, you should reference the **production** library on the [Office.js content delivery network (CDN)](https://appsforoffice.microsoft.com/lib/1/hosted/office.js).