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rename from SDL2-2.28.4/include/SDL_power.h
rename to SDL2-2.28.5/include/SDL_power.h
diff --git a/SDL2-2.28.4/include/SDL_quit.h b/SDL2-2.28.5/include/SDL_quit.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_quit.h
rename to SDL2-2.28.5/include/SDL_quit.h
diff --git a/SDL2-2.28.4/include/SDL_rect.h b/SDL2-2.28.5/include/SDL_rect.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_rect.h
rename to SDL2-2.28.5/include/SDL_rect.h
diff --git a/SDL2-2.28.4/include/SDL_render.h b/SDL2-2.28.5/include/SDL_render.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_render.h
rename to SDL2-2.28.5/include/SDL_render.h
diff --git a/SDL2-2.28.4/include/SDL_revision.h b/SDL2-2.28.5/include/SDL_revision.h
similarity index 51%
rename from SDL2-2.28.4/include/SDL_revision.h
rename to SDL2-2.28.5/include/SDL_revision.h
index 453ccb3d2c..4455a08b62 100644
--- a/SDL2-2.28.4/include/SDL_revision.h
+++ b/SDL2-2.28.5/include/SDL_revision.h
@@ -1,7 +1,7 @@
 /* Generated by updaterev.sh, do not edit */
 #ifdef SDL_VENDOR_INFO
-#define SDL_REVISION "SDL-release-2.28.4-0-gcc016b004 (" SDL_VENDOR_INFO ")"
+#define SDL_REVISION "SDL-release-2.28.5-0-g15ead9a40 (" SDL_VENDOR_INFO ")"
 #else
-#define SDL_REVISION "SDL-release-2.28.4-0-gcc016b004"
+#define SDL_REVISION "SDL-release-2.28.5-0-g15ead9a40"
 #endif
 #define SDL_REVISION_NUMBER 0
diff --git a/SDL2-2.28.4/include/SDL_rwops.h b/SDL2-2.28.5/include/SDL_rwops.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_rwops.h
rename to SDL2-2.28.5/include/SDL_rwops.h
diff --git a/SDL2-2.28.4/include/SDL_scancode.h b/SDL2-2.28.5/include/SDL_scancode.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_scancode.h
rename to SDL2-2.28.5/include/SDL_scancode.h
diff --git a/SDL2-2.28.4/include/SDL_sensor.h b/SDL2-2.28.5/include/SDL_sensor.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_sensor.h
rename to SDL2-2.28.5/include/SDL_sensor.h
diff --git a/SDL2-2.28.4/include/SDL_shape.h b/SDL2-2.28.5/include/SDL_shape.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_shape.h
rename to SDL2-2.28.5/include/SDL_shape.h
diff --git a/SDL2-2.28.4/include/SDL_stdinc.h b/SDL2-2.28.5/include/SDL_stdinc.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_stdinc.h
rename to SDL2-2.28.5/include/SDL_stdinc.h
diff --git a/SDL2-2.28.4/include/SDL_surface.h b/SDL2-2.28.5/include/SDL_surface.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_surface.h
rename to SDL2-2.28.5/include/SDL_surface.h
diff --git a/SDL2-2.28.4/include/SDL_system.h b/SDL2-2.28.5/include/SDL_system.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_system.h
rename to SDL2-2.28.5/include/SDL_system.h
diff --git a/SDL2-2.28.4/include/SDL_syswm.h b/SDL2-2.28.5/include/SDL_syswm.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_syswm.h
rename to SDL2-2.28.5/include/SDL_syswm.h
diff --git a/SDL2-2.28.4/include/SDL_test.h b/SDL2-2.28.5/include/SDL_test.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_test.h
rename to SDL2-2.28.5/include/SDL_test.h
diff --git a/SDL2-2.28.4/include/SDL_test_assert.h b/SDL2-2.28.5/include/SDL_test_assert.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_test_assert.h
rename to SDL2-2.28.5/include/SDL_test_assert.h
diff --git a/SDL2-2.28.4/include/SDL_test_common.h b/SDL2-2.28.5/include/SDL_test_common.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_test_common.h
rename to SDL2-2.28.5/include/SDL_test_common.h
diff --git a/SDL2-2.28.4/include/SDL_test_compare.h b/SDL2-2.28.5/include/SDL_test_compare.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_test_compare.h
rename to SDL2-2.28.5/include/SDL_test_compare.h
diff --git a/SDL2-2.28.4/include/SDL_test_crc32.h b/SDL2-2.28.5/include/SDL_test_crc32.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_test_crc32.h
rename to SDL2-2.28.5/include/SDL_test_crc32.h
diff --git a/SDL2-2.28.4/include/SDL_test_font.h b/SDL2-2.28.5/include/SDL_test_font.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_test_font.h
rename to SDL2-2.28.5/include/SDL_test_font.h
diff --git a/SDL2-2.28.4/include/SDL_test_fuzzer.h b/SDL2-2.28.5/include/SDL_test_fuzzer.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_test_fuzzer.h
rename to SDL2-2.28.5/include/SDL_test_fuzzer.h
diff --git a/SDL2-2.28.4/include/SDL_test_harness.h b/SDL2-2.28.5/include/SDL_test_harness.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_test_harness.h
rename to SDL2-2.28.5/include/SDL_test_harness.h
diff --git a/SDL2-2.28.4/include/SDL_test_images.h b/SDL2-2.28.5/include/SDL_test_images.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_test_images.h
rename to SDL2-2.28.5/include/SDL_test_images.h
diff --git a/SDL2-2.28.4/include/SDL_test_log.h b/SDL2-2.28.5/include/SDL_test_log.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_test_log.h
rename to SDL2-2.28.5/include/SDL_test_log.h
diff --git a/SDL2-2.28.4/include/SDL_test_md5.h b/SDL2-2.28.5/include/SDL_test_md5.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_test_md5.h
rename to SDL2-2.28.5/include/SDL_test_md5.h
diff --git a/SDL2-2.28.4/include/SDL_test_memory.h b/SDL2-2.28.5/include/SDL_test_memory.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_test_memory.h
rename to SDL2-2.28.5/include/SDL_test_memory.h
diff --git a/SDL2-2.28.4/include/SDL_test_random.h b/SDL2-2.28.5/include/SDL_test_random.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_test_random.h
rename to SDL2-2.28.5/include/SDL_test_random.h
diff --git a/SDL2-2.28.4/include/SDL_thread.h b/SDL2-2.28.5/include/SDL_thread.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_thread.h
rename to SDL2-2.28.5/include/SDL_thread.h
diff --git a/SDL2-2.28.4/include/SDL_timer.h b/SDL2-2.28.5/include/SDL_timer.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_timer.h
rename to SDL2-2.28.5/include/SDL_timer.h
diff --git a/SDL2-2.28.4/include/SDL_touch.h b/SDL2-2.28.5/include/SDL_touch.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_touch.h
rename to SDL2-2.28.5/include/SDL_touch.h
diff --git a/SDL2-2.28.4/include/SDL_types.h b/SDL2-2.28.5/include/SDL_types.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_types.h
rename to SDL2-2.28.5/include/SDL_types.h
diff --git a/SDL2-2.28.4/include/SDL_version.h b/SDL2-2.28.5/include/SDL_version.h
similarity index 99%
rename from SDL2-2.28.4/include/SDL_version.h
rename to SDL2-2.28.5/include/SDL_version.h
index 57c171ccd4..7585eece56 100644
--- a/SDL2-2.28.4/include/SDL_version.h
+++ b/SDL2-2.28.5/include/SDL_version.h
@@ -59,7 +59,7 @@ typedef struct SDL_version
 */
 #define SDL_MAJOR_VERSION   2
 #define SDL_MINOR_VERSION   28
-#define SDL_PATCHLEVEL      4
+#define SDL_PATCHLEVEL      5
 
 /**
  * Macro to determine SDL version program was compiled against.
diff --git a/SDL2-2.28.4/include/SDL_video.h b/SDL2-2.28.5/include/SDL_video.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_video.h
rename to SDL2-2.28.5/include/SDL_video.h
diff --git a/SDL2-2.28.4/include/SDL_vulkan.h b/SDL2-2.28.5/include/SDL_vulkan.h
similarity index 100%
rename from SDL2-2.28.4/include/SDL_vulkan.h
rename to SDL2-2.28.5/include/SDL_vulkan.h
diff --git a/SDL2-2.28.4/include/begin_code.h b/SDL2-2.28.5/include/begin_code.h
similarity index 100%
rename from SDL2-2.28.4/include/begin_code.h
rename to SDL2-2.28.5/include/begin_code.h
diff --git a/SDL2-2.28.4/include/close_code.h b/SDL2-2.28.5/include/close_code.h
similarity index 100%
rename from SDL2-2.28.4/include/close_code.h
rename to SDL2-2.28.5/include/close_code.h
diff --git a/SDL2-2.28.4/lib/x64/SDL2.dll b/SDL2-2.28.5/lib/x64/SDL2.dll
similarity index 74%
rename from SDL2-2.28.4/lib/x64/SDL2.dll
rename to SDL2-2.28.5/lib/x64/SDL2.dll
index 58b02a20c5..e26bcb1c3b 100644
Binary files a/SDL2-2.28.4/lib/x64/SDL2.dll and b/SDL2-2.28.5/lib/x64/SDL2.dll differ
diff --git a/SDL2-2.28.4/lib/x64/SDL2.lib b/SDL2-2.28.5/lib/x64/SDL2.lib
similarity index 100%
rename from SDL2-2.28.4/lib/x64/SDL2.lib
rename to SDL2-2.28.5/lib/x64/SDL2.lib
diff --git a/SDL2-2.28.4/lib/x64/SDL2main.lib b/SDL2-2.28.5/lib/x64/SDL2main.lib
similarity index 100%
rename from SDL2-2.28.4/lib/x64/SDL2main.lib
rename to SDL2-2.28.5/lib/x64/SDL2main.lib
diff --git a/SDL2-2.28.4/lib/x64/SDL2test.lib b/SDL2-2.28.5/lib/x64/SDL2test.lib
similarity index 100%
rename from SDL2-2.28.4/lib/x64/SDL2test.lib
rename to SDL2-2.28.5/lib/x64/SDL2test.lib
diff --git a/SDL2-2.28.4/lib/x86/SDL2.dll b/SDL2-2.28.5/lib/x86/SDL2.dll
similarity index 73%
rename from SDL2-2.28.4/lib/x86/SDL2.dll
rename to SDL2-2.28.5/lib/x86/SDL2.dll
index b2d97acad3..573225caba 100644
Binary files a/SDL2-2.28.4/lib/x86/SDL2.dll and b/SDL2-2.28.5/lib/x86/SDL2.dll differ
diff --git a/SDL2-2.28.4/lib/x86/SDL2.lib b/SDL2-2.28.5/lib/x86/SDL2.lib
similarity index 100%
rename from SDL2-2.28.4/lib/x86/SDL2.lib
rename to SDL2-2.28.5/lib/x86/SDL2.lib
diff --git a/SDL2-2.28.4/lib/x86/SDL2main.lib b/SDL2-2.28.5/lib/x86/SDL2main.lib
similarity index 100%
rename from SDL2-2.28.4/lib/x86/SDL2main.lib
rename to SDL2-2.28.5/lib/x86/SDL2main.lib
diff --git a/SDL2-2.28.4/lib/x86/SDL2test.lib b/SDL2-2.28.5/lib/x86/SDL2test.lib
similarity index 100%
rename from SDL2-2.28.4/lib/x86/SDL2test.lib
rename to SDL2-2.28.5/lib/x86/SDL2test.lib
diff --git a/msvc/Debug/SDL2.dll b/msvc/Debug/SDL2.dll
index b2d97acad3..573225caba 100644
Binary files a/msvc/Debug/SDL2.dll and b/msvc/Debug/SDL2.dll differ
diff --git a/msvc/Release/SDL2.dll b/msvc/Release/SDL2.dll
index b2d97acad3..573225caba 100644
Binary files a/msvc/Release/SDL2.dll and b/msvc/Release/SDL2.dll differ
diff --git a/msvc/doomretro.vcxproj b/msvc/doomretro.vcxproj
index 19fee5e61f..dddbed813d 100644
--- a/msvc/doomretro.vcxproj
+++ b/msvc/doomretro.vcxproj
@@ -102,7 +102,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src;$(ProjectDir)..\SDL2-2.28.4\include;$(ProjectDir)..\SDL2_mixer-2.6.3\include;$(ProjectDir)..\SDL2_image-2.6.3\include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src;$(ProjectDir)..\SDL2-2.28.5\include;$(ProjectDir)..\SDL2_mixer-2.6.3\include;$(ProjectDir)..\SDL2_image-2.6.3\include</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
@@ -127,7 +127,7 @@
       </DataExecutionPrevention>
       <TargetMachine>MachineX86</TargetMachine>
       <GenerateMapFile>false</GenerateMapFile>
-      <AdditionalLibraryDirectories>$(ProjectDir)..\SDL2-2.28.4\lib\x86;$(ProjectDir)..\SDL2_mixer-2.6.3\lib\x86;$(ProjectDir)..\SDL2_image-2.6.3\lib\x86</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(ProjectDir)..\SDL2-2.28.5\lib\x86;$(ProjectDir)..\SDL2_mixer-2.6.3\lib\x86;$(ProjectDir)..\SDL2_image-2.6.3\lib\x86</AdditionalLibraryDirectories>
     </Link>
     <ResourceCompile>
       <SuppressStartupBanner>false</SuppressStartupBanner>
@@ -143,7 +143,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src;$(ProjectDir)..\SDL2-2.28.4\include;$(ProjectDir)..\SDL2_mixer-2.6.3\include;$(ProjectDir)..\SDL2_image-2.6.3\include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src;$(ProjectDir)..\SDL2-2.28.5\include;$(ProjectDir)..\SDL2_mixer-2.6.3\include;$(ProjectDir)..\SDL2_image-2.6.3\include</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
@@ -168,7 +168,7 @@
       <DataExecutionPrevention>
       </DataExecutionPrevention>
       <GenerateMapFile>false</GenerateMapFile>
-      <AdditionalLibraryDirectories>$(ProjectDir)..\SDL2-2.28.4\lib\x64;$(ProjectDir)..\SDL2_mixer-2.6.3\lib\x64;$(ProjectDir)..\SDL2_image-2.6.3\lib\x64</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(ProjectDir)..\SDL2-2.28.5\lib\x64;$(ProjectDir)..\SDL2_mixer-2.6.3\lib\x64;$(ProjectDir)..\SDL2_image-2.6.3\lib\x64</AdditionalLibraryDirectories>
     </Link>
     <ResourceCompile>
       <SuppressStartupBanner>false</SuppressStartupBanner>
@@ -185,7 +185,7 @@
     <ClCompile>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src;$(ProjectDir)..\SDL2-2.28.4\include;$(ProjectDir)..\SDL2_mixer-2.6.3\include;$(ProjectDir)..\SDL2_image-2.6.3\include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src;$(ProjectDir)..\SDL2-2.28.5\include;$(ProjectDir)..\SDL2_mixer-2.6.3\include;$(ProjectDir)..\SDL2_image-2.6.3\include</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_SECURE_NO_WARNINGS;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;_BIND_TO_CURRENT_VCLIBS_VERSION=1;_MSC_PLATFORM_TOOLSET=$(PlatformToolsetVersion);WIN32_LEAN_AND_MEAN;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <FunctionLevelLinking>true</FunctionLevelLinking>
@@ -235,7 +235,7 @@
       <EnableUAC>false</EnableUAC>
       <GenerateMapFile>true</GenerateMapFile>
       <MapExports>false</MapExports>
-      <AdditionalLibraryDirectories>$(ProjectDir)..\SDL2-2.28.4\lib\x86;$(ProjectDir)..\SDL2_mixer-2.6.3\lib\x86;$(ProjectDir)..\SDL2_image-2.6.3\lib\x86</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(ProjectDir)..\SDL2-2.28.5\lib\x86;$(ProjectDir)..\SDL2_mixer-2.6.3\lib\x86;$(ProjectDir)..\SDL2_image-2.6.3\lib\x86</AdditionalLibraryDirectories>
     </Link>
     <Manifest>
       <AdditionalManifestFiles>..\src\doomretro.manifest</AdditionalManifestFiles>
@@ -252,7 +252,7 @@
     <ClCompile>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <AdditionalIncludeDirectories>$(ProjectDir)..\src;$(ProjectDir)..\SDL2-2.28.4\include;$(ProjectDir)..\SDL2_mixer-2.6.3\include;$(ProjectDir)..\SDL2_image-2.6.3\include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\src;$(ProjectDir)..\SDL2-2.28.5\include;$(ProjectDir)..\SDL2_mixer-2.6.3\include;$(ProjectDir)..\SDL2_image-2.6.3\include</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_CRT_SECURE_NO_WARNINGS;_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;_BIND_TO_CURRENT_VCLIBS_VERSION=1;_MSC_PLATFORM_TOOLSET=$(PlatformToolsetVersion);WIN32_LEAN_AND_MEAN;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <FunctionLevelLinking>true</FunctionLevelLinking>
@@ -302,7 +302,7 @@
       <EnableUAC>false</EnableUAC>
       <GenerateMapFile>true</GenerateMapFile>
       <MapExports>false</MapExports>
-      <AdditionalLibraryDirectories>$(ProjectDir)..\SDL2-2.28.4\lib\x64;$(ProjectDir)..\SDL2_mixer-2.6.3\lib\x64;$(ProjectDir)..\SDL2_image-2.6.3\lib\x64</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(ProjectDir)..\SDL2-2.28.5\lib\x64;$(ProjectDir)..\SDL2_mixer-2.6.3\lib\x64;$(ProjectDir)..\SDL2_image-2.6.3\lib\x64</AdditionalLibraryDirectories>
     </Link>
     <Manifest>
       <AdditionalManifestFiles>..\src\doomretro.manifest</AdditionalManifestFiles>
diff --git a/msvc/x64/Debug/SDL2.dll b/msvc/x64/Debug/SDL2.dll
index 58b02a20c5..e26bcb1c3b 100644
Binary files a/msvc/x64/Debug/SDL2.dll and b/msvc/x64/Debug/SDL2.dll differ
diff --git a/msvc/x64/Release/SDL2.dll b/msvc/x64/Release/SDL2.dll
index 58b02a20c5..e26bcb1c3b 100644
Binary files a/msvc/x64/Release/SDL2.dll and b/msvc/x64/Release/SDL2.dll differ
diff --git a/releasenotes.md b/releasenotes.md
index 645e93f3f0..e42c1c70b5 100644
--- a/releasenotes.md
+++ b/releasenotes.md
@@ -3,6 +3,7 @@
 ### DOOM Retro v5.1
 
 * *DOOM Retro* is now built using v17.7.6 of [*Microsoft Visual Studio Community 2022*](https://visualstudio.microsoft.com/vs/community/).
+* *DOOM Retro* now uses [*SDL v2.28.5*](https://github.com/libsdl-org/SDL/releases/tag/release-2.28.5).
 * Minor changes have been made to text that is output to the console.
 * The automap is now shown in low detail when the `r_detail` CVAR is `low`.
 * A bug is fixed whereby the effect of changing a color CVAR for the automap in the console wouldn’t be immediate.