Add NuGet 7.4 release notes (#3540)

* Add NuGet 7.4 release notes

* Addressed feedback

* Add leading 0 to date

Author: jebriede

docs/TOC.md

@@ -351,6 +351,7 @@
 ## Release notes
 ### [Known Issues](release-notes/known-issues.md)
 ### NuGet 7.x
+#### [NuGet 7.4](release-notes/NuGet-7.4.md)
 #### [NuGet 7.3](release-notes/NuGet-7.3.md)
 #### [NuGet 7.0](release-notes/NuGet-7.0.md)
 ### NuGet 6.x

docs/release-notes/Index.md

@@ -11,6 +11,8 @@ ms.topic: release-notes
 
 [Known Issues](../release-notes/known-issues.md)
 
+[NuGet 7.4](../release-notes/NuGet-7.4.md)
+
 [NuGet 7.3](../release-notes/NuGet-7.3.md)
 
 [NuGet 7.0](../release-notes/NuGet-7.0.md)

docs/release-notes/NuGet-7.4.md

@@ -0,0 +1,37 @@
+---
+title: NuGet 7.4 Release Notes
+description: Release notes for NuGet 7.4 including new features, bug fixes, and DCRs.
+author: jebriede
+ms.date: 03/12/2026
+ms.topic: release-notes
+---
+
+# NuGet 7.4 Release Notes
+
+NuGet distribution vehicles:
+
+| NuGet version | Available in Visual Studio version | Available in .NET SDK(s) |
+|:---|:---|:---|
+| [**7.4.0**](https://nuget.org/downloads) | [Visual Studio 2026 version 18.4.0](https://visualstudio.microsoft.com/downloads/) | N/A
+
+## Summary: What's New in 7.4.0
+
+### Issues fixed in this release
+
+* Ensure PM UI refreshes when audit sources are updated - [#14688](https://github.com/NuGet/Home/issues/14688)
+
+* NU1701 Warning Not Suppressed by NoWarn="NU1701" on PackageReference (dotnet restore / build) - [#14756](https://github.com/NuGet/Home/issues/14756)
+
+[List of commits in this release](https://github.com/NuGet/NuGet.Client/compare/7.3.0.78...7.4.0.28)
+
+### Community contributions
+
+Thank you to all the contributors who helped make this NuGet release awesome!
+
+* [nareshjo](https://github.com/NuGet/NuGet.Client/pull/7083)
+  * [7083](https://github.com/NuGet/NuGet.Client/pull/7083) Reduce List resize allocations in PopulateItemGroups hot path
+  * [7056](https://github.com/NuGet/NuGet.Client/pull/7056) Avoid LineInfoAnnotation allocations in MetadataFieldConverter JSON parsing
+  * [7050](https://github.com/NuGet/NuGet.Client/pull/7050) Reduce allocation in GetNuGetProjects by providing capacity for List
+  * [7037](https://github.com/NuGet/NuGet.Client/pull/7037) Reduce allocation in GetContentFileGroup by providing accurate capacity for List
+  * [7035](https://github.com/NuGet/NuGet.Client/pull/7035) Reduce allocation in DownloadTimeoutStream.ReadAsync caused by avoida…
+  * [7026](https://github.com/NuGet/NuGet.Client/pull/7026) Fix list capacity calculation in GetGraphItemAsync that is leading to allocations