Added the release notes MD file and corresponding node entry in the TOC.html file

Author: DeepakRajSundar

Document-Processing-toc.html

@@ -1643,7 +1643,7 @@
 									<li><a href="/document-processing/pdf/smart-pdf-viewer/blazor/getting-started/maui-blazor-app">Blazor MAUI App</a></li>
 								</ul>
 							</li>
-							</li>
+							</ul></li>
 							<li><a href="/document-processing/pdf/smart-pdf-viewer/blazor/document-summarizer">Document Summarizer</a></li>
 							<li><a href="/document-processing/pdf/smart-pdf-viewer/blazor/smart-redaction">Smart Redaction</a></li>
 							<li><a href="/document-processing/pdf/smart-pdf-viewer/blazor/smart-fill">Smart Fill</a></li>
@@ -2282,7 +2282,7 @@
 				</ul>
 			</li>
 		</ul>
-	</li>
+	
 	<li>
 		<a href="/document-processing/word/overview">Word</a>
 		<ul>
@@ -6542,7 +6542,7 @@
 	</li>
 	<li>
         Release Notes
-        <ul><li>2025 Volume 3 - v31.*<ul><li> Weekly Nuget Release <ul><li><a href="/document-processing/release-notes/v31.1.20">v31.1.20</a></li><li><a href="/document-processing/release-notes/v31.1.19">v31.1.19</a></li><li><a href="/document-processing/release-notes/v31.1.18">v31.1.18</a></li></ul></li><li><a href="/document-processing/release-notes/v31.1.17">v31.1.17 Main Release</a></li></ul></li>
+        <ul><li>2025 Volume 3 - v31.*<ul><li> Weekly Nuget Release <ul><li><a href="/document-processing/release-notes/v31.1.21">v31.1.21</a></li><li><a href="/document-processing/release-notes/v31.1.20">v31.1.20</a></li><li><a href="/document-processing/release-notes/v31.1.19">v31.1.19</a></li><li><a href="/document-processing/release-notes/v31.1.18">v31.1.18</a></li></ul></li><li><a href="/document-processing/release-notes/v31.1.17">v31.1.17 Main Release</a></li></ul></li>
 		<li>2025 Volume 2 - v30.*<ul><li> Weekly Nuget Release <ul><li><a href="/document-processing/release-notes/v30.2.7">v30.2.7</a></li><li><a href="/document-processing/release-notes/v30.2.6">v30.2.6</a></li><li><a href="/document-processing/release-notes/v30.2.5">v30.2.5</a></li><li><a href="/document-processing/release-notes/v30.1.42">v30.1.42</a></li><li><a href="/document-processing/release-notes/v30.1.41">v30.1.41</a></li><li><a href="/document-processing/release-notes/v30.1.40">v30.1.40</a></li><li><a href="/document-processing/release-notes/v30.1.39">v30.1.39</a></li><li><a href="/document-processing/release-notes/v30.1.38">v30.1.38</a></li></ul></li><li><a href="/document-processing/release-notes/v30.2.4">v30.2.4 Service Pack Release</a></li><li><a href="/document-processing/release-notes/v30.1.37">v30.1.37 Main Release</a></li></ul></li>
 		<li>2025 Volume 1 - v29.*<ul><li> Weekly Nuget Release <ul><li><a href="/document-processing/release-notes/v29.1.41">v29.1.41</a></li><li><a href="/document-processing/release-notes/v29.1.40">v29.1.40</a></li><li><a href="/document-processing/release-notes/v29.1.39">v29.1.39</a></li><li><a href="/document-processing/release-notes/v29.1.38">v29.1.38</a></li><li><a href="/document-processing/release-notes/v29.1.37">v29.1.37</a></li><li><a href="/document-processing/release-notes/v29.1.35">v29.1.35</a></li></ul></li><li><a href="/document-processing/release-notes/v29.2.4">v29.2.4 Service Pack Release</a></li><li><a href="/document-processing/release-notes/v29.1.33">v29.1.33 Main Release</a></li></ul></li>
 		<li>2024 Volume 4 - v28.*<ul><li>Weekly Release<ul><li><a href="/document-processing/release-notes/v28.2.12">v28.2.12</a></li><li><a href="/document-processing/release-notes/v28.2.11">v28.2.11</a></li><li><a href="/document-processing/release-notes/v28.2.9">v28.2.9</a></li><li><a href="/document-processing/release-notes/v28.2.7">v28.2.7</a></li><li><a href="/document-processing/release-notes/v28.2.6">v28.2.6</a></li><li><a href="/document-processing/release-notes/v28.2.5">v28.2.5</a></li><li><a href="/document-processing/release-notes/v28.2.4">v28.2.4</a></li><li><a href="/document-processing/release-notes/v28.1.41">v28.1.41</a></li><li><a href="/document-processing/release-notes/v28.1.39">v28.1.39</a></li><li><a href="/document-processing/release-notes/v28.1.38">v28.1.38</a></li><li><a href="/document-processing/release-notes/v28.1.37">v28.1.37</a></li><li><a href="/document-processing/release-notes/v28.1.36">v28.1.36</a></li><li><a href="/document-processing/release-notes/v28.1.35">v28.1.35</a></li></ul></li><li><a href="/document-processing/release-notes/v28.2.3">v28.2.3 Service Pack Release</a></li><li><a href="/document-processing/release-notes/v28.1.33">v28.1.33 Main Release</a></li></ul></li>
@@ -6758,4 +6758,4 @@
 					</li>
         </ul>
     </li>
-</ul>
+

Document-Processing/Release-Notes/v31.1.21.md

@@ -0,0 +1,16 @@
+---
+title : Essential Studio® for Document Processing Release Notes - v31.1.21
+description : Learn here about the controls in the Essential Studio® for Document Processing Weekly Nuget Release - Release Notes - v31.1.21
+platform : document-processing
+documentation: ug
+---
+
+# Essential Studio® for Document Processing - v31.1.21 Release Notes
+
+{% include release-info.html date="September 23, 2025"  version="v31.1.21" %}
+
+{% directory path: _includes/release-notes/v31.1.21 %}
+
+{% include {{file.url}} %}
+
+{% enddirectory %}