diff --git a/.nuget/directxtk12_desktop_2019.nuspec b/.nuget/directxtk12_desktop_2019.nuspec
index 7e8e1f60..01c9411b 100644
--- a/.nuget/directxtk12_desktop_2019.nuspec
+++ b/.nuget/directxtk12_desktop_2019.nuspec
@@ -34,7 +34,7 @@ SpriteBatch - simple & efficient 2D sprite rendering
 SpriteFont - bitmap based text rendering
 VertexTypes - structures for commonly used vertex data formats
 WICTextureLoader - WIC-based image file texture loader</description>
-        <releaseNotes>Matches the December 31, 2023 release on GitHub.</releaseNotes>
+        <releaseNotes>Matches the February 21, 2024 release on GitHub.</releaseNotes>
         <projectUrl>http://go.microsoft.com/fwlink/?LinkID=615561</projectUrl>
         <repository type="git" url="https://github.com/microsoft/DirectXTK12.git" />
         <icon>images\icon.jpg</icon>
diff --git a/.nuget/directxtk12_uwp.nuspec b/.nuget/directxtk12_uwp.nuspec
index 2eee063a..22997778 100644
--- a/.nuget/directxtk12_uwp.nuspec
+++ b/.nuget/directxtk12_uwp.nuspec
@@ -34,7 +34,7 @@ SpriteBatch - simple &amp; efficient 2D sprite rendering
 SpriteFont - bitmap based text rendering
 VertexTypes - structures for commonly used vertex data formats
 WICTextureLoader - WIC-based image file texture loader</description>
-        <releaseNotes>Matches the December 31, 2023 release on GitHub.</releaseNotes>
+        <releaseNotes>Matches the February 21, 2024 release on GitHub.</releaseNotes>
         <projectUrl>http://go.microsoft.com/fwlink/?LinkID=615561</projectUrl>
         <repository type="git" url="https://github.com/microsoft/DirectXTK12.git" />
         <icon>images\icon.jpg</icon>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 42d1246d..de3c0993 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@
 
 cmake_minimum_required (VERSION 3.20)
 
-set(DIRECTXTK12_VERSION 1.5.7)
+set(DIRECTXTK12_VERSION 1.5.8)
 
 if(WINDOWS_STORE OR (DEFINED XBOX_CONSOLE_TARGET))
   set(CMAKE_TRY_COMPILE_TARGET_TYPE "STATIC_LIBRARY")
diff --git a/HISTORY.md b/HISTORY.md
index 1b8d8484..2ade0058 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -6,6 +6,12 @@ Release available for download on [GitHub](https://github.com/microsoft/DirectXT
 
 ## Release History
 
+### February 21, 2024
+* Project updates for GDK validation
+* Shaders are now built with full path for improved PIX debugging support
+* CMake project updates and refactor including pkg-config file generation
+* Minor code review for Clang, MinGW, and Intel compilers
+
 ### December 31, 2023
 * Fix WAVFileReader bugs with bounds checking
 * CMake project updates
diff --git a/README.md b/README.md
index d507cf64..2f7d8efe 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ http://go.microsoft.com/fwlink/?LinkID=615561
 
 Copyright (c) Microsoft Corporation.
 
-**December 31, 2023**
+**February 21, 2024**
 
 This package contains the "DirectX Tool Kit", a collection of helper classes for writing Direct3D 12 C++ code for Universal Windows Platform (UWP) apps for Windows 11 and Windows 10, game titles for Xbox Series X\|S and Xbox One, and Win32 desktop applications for Windows 11 and Windows 10.