Fixed potential internal race condition with group buffer memory management

- Added a line to capture `groupCount` from `generationArray.Groups.Length` in `MemorySegmentedBufferPool.cs` to improve buffer management.
- Updated the version number in `Directory.Build.props` to 2.0.1.
- Enhanced release notes in `KZDev.PerfUtils.csproj` to include a bug fix for a potential internal race condition.

Author: kzdev-net

Source/Src/Directory.Build.props

@@ -9,7 +9,7 @@
     <PropertyGroup Label="SourceGlobals">
         <Configurations>Debug;Release;Profile;Package</Configurations>
         <TargetFrameworks>net9.0;net8.0;net6.0</TargetFrameworks>
-        <Version>2.0.0</Version>
+        <Version>2.0.1</Version>
         <Authors>Kevin Zehrer</Authors>
         <Copyright>Copyright © 2024-2025 Kevin Zehrer. All rights reserved.</Copyright>
         <Product>KZDev Performance Utilities</Product>

Source/Src/KZDev.PerfUtils/KZDev.PerfUtils.csproj

@@ -12,7 +12,7 @@
 		<PackageIcon>images\icon.png</PackageIcon>
 		<PackageLicenseExpression>MIT</PackageLicenseExpression>
 		<PackageDescription>Performance utilities for .NET projects, including the MemoryStreamSlim, StringBuilderCache, InterlockedOps, and Compression classes.</PackageDescription>
-		<PackageReleaseNotes>.NET 9 Support, MemoryStreamSlim Int64 Capacity Support, Added compression stream helper classes (version 2.0.0).</PackageReleaseNotes>
+		<PackageReleaseNotes>.NET 9 Support, MemoryStreamSlim Int64 Capacity Support, Added compression stream helper classes (version 2.0.0). Bug fix for potential internal race condition (version 2.0.1).</PackageReleaseNotes>
 		<EmbedUntrackedSources>true</EmbedUntrackedSources>
 		<RepositoryUrl>https://github.com/kzdev-net/kzdev.perfutils</RepositoryUrl>
 	</PropertyGroup>

Source/Src/KZDev.PerfUtils/Memory/Internals/MemorySegmentedBufferPool.cs

@@ -21,7 +21,7 @@ internal class MemorySegmentedBufferPool : IDisposable
     /// </summary>
     private const int TrimTimerIntervalMs =
 #if DEBUG
-            20_000;
+        20_000;
 #else
         600_000;
 #endif
@@ -398,6 +398,7 @@ private SegmentBuffer RentFromGeneration (long requestedBufferSize,
             // Someone else already expanded the array group, so we will just try again with that
             // generation.
             generationArray = currentGenerationArray;
+            groupCount = generationArray.Groups.Length;
         }
     }
     //--------------------------------------------------------------------------------