openframeworks · danoli3 · Aug 31, 2026 · Aug 31, 2026
diff --git a/libs/openFrameworksCompiled/project/macos/CoreOF.xcconfig b/libs/openFrameworksCompiled/project/macos/CoreOF.xcconfig
@@ -1,7 +1,8 @@
 // define which C++ library is required to build, based on target architecture
 CLANG_CXX_LIBRARY = libc++
 CLANG_ENABLE_OBJC_ARC = YES
-CLANG_CXX_LANGUAGE_STANDARD = c++17
+CLANG_CXX_LANGUAGE_STANDARD = c++23
+CLANG_C_LANGUAGE_STANDARD = c17
 MACOSX_DEPLOYMENT_TARGET = 10.15
 
 MISC_FLAGS = "-ObjC"
@@ -50,7 +51,7 @@ OF_CORE_LIBS = $(MISC_FLAGS)
 
 OF_CORE_HEADERS = $(HEADER_OF) $(HEADER_FREEIMAGE)  $(HEADER_UTF8) $(HEADER_JSON) $(HEADER_GLM) $(HEADER_TESS2) $(HEADER_CAIRO) $(HEADER_RTAUDIO) $(HEADER_GLFW) $(HEADER_FREETYPE) $(HEADER_FREETYPE2) $(HEADER_CURL) $(HEADER_URIPARSER) $(HEADER_PUGIXML) $(HEADER_GLEW) $(HEADER_CURL) $(HEADER_OPENSSL) $(HEADER_BROTLI)
 
-OF_CORE_FRAMEWORKS = -framework Accelerate -framework AGL -framework AppKit -framework ApplicationServices -framework AudioToolbox -framework AVFoundation -framework Cocoa -framework CoreAudio -framework CoreFoundation -framework CoreMedia -framework CoreServices -framework CoreVideo -framework IOKit -framework OpenGL -framework QuartzCore -framework Security -framework CFNetwork
+OF_CORE_FRAMEWORKS = -framework Accelerate -framework AppKit -framework ApplicationServices -framework AudioToolbox -framework AVFoundation -framework Cocoa -framework CoreAudio -framework CoreFoundation -framework CoreMedia -framework CoreServices -framework CoreVideo -framework Foundation -framework IOKit -framework OpenGL -framework QuartzCore -framework Security -framework CFNetwork -framework SystemConfiguration -framework Metal
 //-framework AudioToolbox -framework Accelerate -framework AVFoundation -framework CoreAudio -framework CoreGraphics -framework CoreLocation -framework CoreMotion -framework CoreMedia -framework CoreVideo -framework Foundation -framework GameController -framework GLKit -framework MapKit -framework OpenAL -framework OpenGLES -framework UIKit -framework Security -framework QuartzCore -framework CoreHaptics
 //
 

diff --git a/libs/openFrameworksCompiled/project/macos/config.macos.default.mk b/libs/openFrameworksCompiled/project/macos/config.macos.default.mk
@@ -82,7 +82,12 @@ ifndef MAC_OS_C_VER
 endif
 
 ifndef MAC_OS_CPP_VER
-    MAC_OS_CPP_VER = -std=c++2b
+	# Prefer ISO C++23. Apple Clang 15 from the command line only accepts the draft alias c++2b.
+	ifeq ($(shell echo 'int main(){return 0;}' | xcrun clang++ -std=c++23 -x c++ - -fsyntax-only >/dev/null 2>&1; echo $$?),0)
+		MAC_OS_CPP_VER = -std=c++23
+	else
+		MAC_OS_CPP_VER = -std=c++2b
+	endif
 endif
 
 # Link against libstdc++ to silence tr1/memory errors on latest versions of osx

diff --git a/libs/openFrameworksCompiled/project/macos/openFrameworksLib.xcodeproj/project.pbxproj b/libs/openFrameworksCompiled/project/macos/openFrameworksLib.xcodeproj/project.pbxproj
@@ -2062,7 +2062,8 @@
 				BUILD_LIBRARY_FOR_DISTRIBUTION = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "c++17";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++23";
+				CLANG_C_LANGUAGE_STANDARD = c17;
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;
@@ -2179,7 +2180,8 @@
 				BUILD_LIBRARY_FOR_DISTRIBUTION = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
-				CLANG_CXX_LANGUAGE_STANDARD = "c++17";
+				CLANG_CXX_LANGUAGE_STANDARD = "c++23";
+				CLANG_C_LANGUAGE_STANDARD = c17;
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
 				CLANG_ENABLE_OBJC_WEAK = YES;

diff --git a/libs/openFrameworksCompiled/project/osx/config.osx.default.mk b/libs/openFrameworksCompiled/project/osx/config.osx.default.mk
@@ -82,7 +82,12 @@ ifndef MAC_OS_C_VER
 endif
 
 ifndef MAC_OS_CPP_VER
-    MAC_OS_CPP_VER = -std=c++2b
+	# Prefer ISO C++23. Apple Clang 15 from the command line only accepts the draft alias c++2b.
+	ifeq ($(shell echo 'int main(){return 0;}' | xcrun clang++ -std=c++23 -x c++ - -fsyntax-only >/dev/null 2>&1; echo $$?),0)
+		MAC_OS_CPP_VER = -std=c++23
+	else
+		MAC_OS_CPP_VER = -std=c++2b
+	endif
 endif
 
 # Link against libstdc++ to silence tr1/memory errors on latest versions of osx

diff --git a/libs/openFrameworksCompiled/project/tvOS/CoreOF.xcconfig b/libs/openFrameworksCompiled/project/tvOS/CoreOF.xcconfig
@@ -1,7 +1,8 @@
 // once all libraries are compiled for libc++ / all architectures
 CLANG_CXX_LIBRARY = libc++
 CLANG_ENABLE_OBJC_ARC = YES
-CLANG_CXX_LANGUAGE_STANDARD = c++17
+CLANG_CXX_LANGUAGE_STANDARD = c++23
+CLANG_C_LANGUAGE_STANDARD = c17
 TVOS_DEPLOYMENT_TARGET = 15.0
 
 OF_USING_STD_FS = YES

diff --git a/libs/openFrameworksCompiled/project/vs/openFrameworksCommon.props b/libs/openFrameworksCompiled/project/vs/openFrameworksCommon.props
@@ -11,12 +11,9 @@
       <AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
     </Link>
     <ClCompile>
-      <LanguageStandard>stdcpplatest</LanguageStandard>
-    </ClCompile>
-    <ClCompile>
+      <LanguageStandard>stdcpp23</LanguageStandard>
+      <LanguageStandard_C>stdc17</LanguageStandard_C>
       <CompileAs>CompileAsCpp</CompileAs>
-    </ClCompile>
-    <ClCompile>
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
   </ItemDefinitionGroup>

diff --git a/libs/openFrameworksCompiled/project/vs/openframeworksLib.vcxproj b/libs/openFrameworksCompiled/project/vs/openframeworksLib.vcxproj
@@ -86,12 +86,10 @@
       <WarningLevel>Level1</WarningLevel>
       <BrowseInformation>false</BrowseInformation>
       <CompileAs>CompileAsCpp</CompileAs>
-      <LanguageStandard>stdcpplatest</LanguageStandard>
+
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
       <BufferSecurityCheck Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64EC'">false</BufferSecurityCheck>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">stdc17</LanguageStandard_C>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">stdc17</LanguageStandard_C>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64EC'">stdc17</LanguageStandard_C>
+
       <EnableModules Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">true</EnableModules>
       <BuildStlModules Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">true</BuildStlModules>
       <EnableModules Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64EC'">true</EnableModules>
@@ -129,9 +127,9 @@
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <WarningLevel>Level1</WarningLevel>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
-      <LanguageStandard>stdcpplatest</LanguageStandard>
+
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
-      <LanguageStandard_C>stdc17</LanguageStandard_C>
+
       <BufferSecurityCheck Condition="'$(Configuration)|$(Platform)'=='Release|ARM64EC'">false</BufferSecurityCheck>
       <EnableModules Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">true</EnableModules>
       <BuildStlModules Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">true</BuildStlModules>

diff --git a/libs/openFrameworksCompiled/project/vs2019/openFrameworksCommon.props b/libs/openFrameworksCompiled/project/vs2019/openFrameworksCommon.props
@@ -12,11 +12,8 @@
     </Link>
     <ClCompile>
       <LanguageStandard>stdcpp17</LanguageStandard>
-    </ClCompile>
-    <ClCompile>
+      <LanguageStandard_C>stdc17</LanguageStandard_C>
       <CompileAs>CompileAsCpp</CompileAs>
-    </ClCompile>
-    <ClCompile>
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
   </ItemDefinitionGroup>

diff --git a/libs/openFrameworksCompiled/project/vs2019/openframeworksLib.vcxproj b/libs/openFrameworksCompiled/project/vs2019/openframeworksLib.vcxproj
@@ -83,12 +83,10 @@
       <WarningLevel>Level3</WarningLevel>
       <BrowseInformation>false</BrowseInformation>
       <CompileAs>CompileAsCpp</CompileAs>
-      <LanguageStandard>stdcpplatest</LanguageStandard>
+
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
       <BufferSecurityCheck Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64EC'">false</BufferSecurityCheck>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">stdc17</LanguageStandard_C>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">stdc17</LanguageStandard_C>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64EC'">stdc17</LanguageStandard_C>
+
       <EnableModules Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">true</EnableModules>
       <BuildStlModules Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">true</BuildStlModules>
       <EnableModules Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64EC'">true</EnableModules>
@@ -124,9 +122,9 @@
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <WarningLevel>Level1</WarningLevel>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
-      <LanguageStandard>stdcpplatest</LanguageStandard>
+
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
-      <LanguageStandard_C>stdc17</LanguageStandard_C>
+
       <BufferSecurityCheck Condition="'$(Configuration)|$(Platform)'=='Release|ARM64EC'">false</BufferSecurityCheck>
       <EnableModules Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">true</EnableModules>
       <BuildStlModules Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">true</BuildStlModules>

diff --git a/libs/openFrameworksCompiled/project/vs2026/openFrameworksCommon.props b/libs/openFrameworksCompiled/project/vs2026/openFrameworksCommon.props
@@ -11,12 +11,9 @@
       <AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
     </Link>
     <ClCompile>
-      <LanguageStandard>stdcpplatest</LanguageStandard>
-    </ClCompile>
-    <ClCompile>
+      <LanguageStandard>stdcpp23</LanguageStandard>
+      <LanguageStandard_C>stdc17</LanguageStandard_C>
       <CompileAs>CompileAsCpp</CompileAs>
-    </ClCompile>
-    <ClCompile>
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
   </ItemDefinitionGroup>

diff --git a/libs/openFrameworksCompiled/project/vs2026/openframeworksLib.vcxproj b/libs/openFrameworksCompiled/project/vs2026/openframeworksLib.vcxproj
@@ -83,12 +83,10 @@
       <WarningLevel>Level1</WarningLevel>
       <BrowseInformation>false</BrowseInformation>
       <CompileAs>CompileAsCpp</CompileAs>
-      <LanguageStandard>stdcpplatest</LanguageStandard>
+
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
       <BufferSecurityCheck Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64EC'">false</BufferSecurityCheck>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">stdc17</LanguageStandard_C>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">stdc17</LanguageStandard_C>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64EC'">stdc17</LanguageStandard_C>
+
       <EnableModules Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">true</EnableModules>
       <BuildStlModules Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">true</BuildStlModules>
       <EnableModules Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64EC'">true</EnableModules>
@@ -126,9 +124,9 @@
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <WarningLevel>Level3</WarningLevel>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
-      <LanguageStandard>stdcpplatest</LanguageStandard>
+
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
-      <LanguageStandard_C>stdc17</LanguageStandard_C>
+
       <BufferSecurityCheck Condition="'$(Configuration)|$(Platform)'=='Release|ARM64EC'">false</BufferSecurityCheck>
       <EnableModules Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">true</EnableModules>
       <BuildStlModules Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">true</BuildStlModules>

diff --git a/scripts/templates/macos/Project.xcconfig b/scripts/templates/macos/Project.xcconfig
@@ -5,8 +5,8 @@ OF_PATH = ../../..
 //THIS HAS ALL THE HEADER AND LIBS FOR OF CORE
 #include "../../../libs/openFrameworksCompiled/project/macos/CoreOF.xcconfig"
 
-//UNCOMMENT BELOW TO ENABLE C++ 17 and std::filesystem
-CLANG_CXX_LANGUAGE_STANDARD = c++17
+CLANG_CXX_LANGUAGE_STANDARD = c++23
+CLANG_C_LANGUAGE_STANDARD = c17
 MACOSX_DEPLOYMENT_TARGET = 10.15
 
 // App Settings

diff --git a/scripts/templates/macos/config.make b/scripts/templates/macos/config.make
@@ -143,6 +143,6 @@
 
 # macos template
 
-# Uncomment/comment below to switch between C++11 and C++17 ( or newer ). On macOS C++17 needs 10.15 or above.
+# Default is C++23 (falls back to c++2b on older Apple Clang). Uncomment to override.
 # export MAC_OS_MIN_VERSION = 10.15
-# export MAC_OS_CPP_VER = -std=c++17
+# export MAC_OS_CPP_VER = -std=c++23
diff --git a/scripts/templates/macos/emptyExample.xcodeproj/project.pbxproj b/scripts/templates/macos/emptyExample.xcodeproj/project.pbxproj
@@ -378,7 +378,7 @@
 				"PRODUCT_NAME": "$(TARGET_NAME)",
 				"SUPPORTED_PLATFORMS": "appletvos appletvsimulator iphoneos iphonesimulator macosx xros xrsimulator",
 				"GCC_WARN_64_TO_32_BIT_CONVERSION": "YES",
-				"CLANG_CXX_LANGUAGE_STANDARD": "c++20",
+				"CLANG_CXX_LANGUAGE_STANDARD": "c++23",
 				"GCC_DYNAMIC_NO_PIC": "NO",
 				"CLANG_WARN__DUPLICATE_METHOD_MATCH": "YES",
 				"DEBUG_INFORMATION_FORMAT": "dwarf",
@@ -945,7 +945,7 @@
 				"PRODUCT_NAME": "$(TARGET_NAME)",
 				"SUPPORTED_PLATFORMS": "appletvos appletvsimulator iphoneos iphonesimulator macosx xros xrsimulator",
 				"GCC_WARN_64_TO_32_BIT_CONVERSION": "YES",
-				"CLANG_CXX_LANGUAGE_STANDARD": "c++20",
+				"CLANG_CXX_LANGUAGE_STANDARD": "c++23",
 				"LOCALIZATION_PREFERS_STRING_CATALOGS": "YES",
 				"CLANG_WARN__DUPLICATE_METHOD_MATCH": "YES",
 				"DEBUG_INFORMATION_FORMAT": "dwarf-with-dsym",

diff --git a/scripts/templates/osx/config.make b/scripts/templates/osx/config.make
@@ -143,6 +143,6 @@
 
 # osx template
 
-# Uncomment/comment below to switch between C++11 and C++17 ( or newer ). On macOS C++17 needs 10.15 or above.
+# Default is C++23 (falls back to c++2b on older Apple Clang). Uncomment to override.
 # export MAC_OS_MIN_VERSION = 10.15
-# export MAC_OS_CPP_VER = -std=c++17
+# export MAC_OS_CPP_VER = -std=c++23
diff --git a/scripts/templates/tvOS/emptyExample.xcodeproj/project.pbxproj b/scripts/templates/tvOS/emptyExample.xcodeproj/project.pbxproj
@@ -163,7 +163,7 @@
 				"GCC_WARN_ABOUT_RETURN_TYPE": "YES_ERROR",
 				"GCC_WARN_UNDECLARED_SELECTOR": "YES",
 				"CLANG_ENABLE_MODULES": "YES",
-				"CLANG_CXX_LANGUAGE_STANDARD": "c++17",
+				"CLANG_CXX_LANGUAGE_STANDARD": "c++23",
 				"GCC_NO_COMMON_BLOCKS": "YES",
 				"GCC_WARN_UNINITIALIZED_AUTOS": "YES_AGGRESSIVE",
 				"CLANG_WARN_INT_CONVERSION": "YES",
@@ -208,7 +208,7 @@
 				"DEVELOPMENT_TEAM": "",
 				"LD_QUOTE_LINKER_ARGUMENTS_FOR_COMPILER_DRIVER": "NO",
 				"INFOPLIST_FILE": "ofxtvOS-Info.plist",
-				"CLANG_CXX_LANGUAGE_STANDARD": "c++17",
+				"CLANG_CXX_LANGUAGE_STANDARD": "c++23",
 				"TVOS_DEPLOYMENT_TARGET": "17.2",
 				"HEADER_SEARCH_PATHS": "$(OF_CORE_HEADERS)",
 				"PRODUCT_NAME": "$(TARGET_NAME)",
@@ -609,7 +609,7 @@
 				"CLANG_WARN_DIRECT_OBJC_ISA_USAGE": "YES_ERROR",
 				"CLANG_WARN__DUPLICATE_METHOD_MATCH": "YES",
 				"SDKROOT": "appletvos",
-				"CLANG_CXX_LANGUAGE_STANDARD": "c++17",
+				"CLANG_CXX_LANGUAGE_STANDARD": "c++23",
 				"ENABLE_TESTABILITY": "YES",
 				"CLANG_WARN_BOOL_CONVERSION": "YES",
 				"CLANG_WARN_UNREACHABLE_CODE": "YES",
@@ -654,7 +654,7 @@
 				"DEVELOPMENT_TEAM": "",
 				"LD_QUOTE_LINKER_ARGUMENTS_FOR_COMPILER_DRIVER": "NO",
 				"INFOPLIST_FILE": "ofxtvOS-Info.plist",
-				"CLANG_CXX_LANGUAGE_STANDARD": "c++17",
+				"CLANG_CXX_LANGUAGE_STANDARD": "c++23",
 				"TVOS_DEPLOYMENT_TARGET": "17.2",
 				"HEADER_SEARCH_PATHS": "$(OF_CORE_HEADERS)",
 				"PRODUCT_NAME": "$(TARGET_NAME)",

diff --git a/scripts/templates/vs/emptyExample.vcxproj b/scripts/templates/vs/emptyExample.vcxproj
@@ -85,7 +85,6 @@
       <AdditionalIncludeDirectories>%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <CompileAs>CompileAsCpp</CompileAs>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
-      <LanguageStandard>stdcpp23</LanguageStandard>
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <PostBuildEvent>
@@ -129,7 +128,6 @@
       <WarningLevel>Level3</WarningLevel>
       <AdditionalIncludeDirectories>%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <CompileAs>CompileAsCpp</CompileAs>
-      <LanguageStandard>stdcpplatest</LanguageStandard>
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <PostBuildEvent>
@@ -181,12 +179,12 @@
         </Command>
     </PostBuildEvent>
     <ClCompile>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Release|x64'">stdc17</LanguageStandard_C>
+
       <BuildStlModules Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</BuildStlModules>
       <DebugInformationFormat Condition="'$(Configuration)|$(Platform)'=='Release|x64'">OldStyle</DebugInformationFormat>
     </ClCompile>
     <ClCompile>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">stdc17</LanguageStandard_C>
+
       <BuildStlModules Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</BuildStlModules>
       <DebugInformationFormat Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">OldStyle</DebugInformationFormat>
     </ClCompile>
@@ -198,12 +196,12 @@
         </Command>
     </PostBuildEvent>
     <ClCompile>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">stdc17</LanguageStandard_C>
+
       <BuildStlModules Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">true</BuildStlModules>
       <DebugInformationFormat Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">OldStyle</DebugInformationFormat>
     </ClCompile>
     <ClCompile>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">stdc17</LanguageStandard_C>
+
       <BuildStlModules Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">true</BuildStlModules>
       <DebugInformationFormat Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">OldStyle</DebugInformationFormat>
     </ClCompile>
@@ -215,12 +213,12 @@
         </Command>
     </PostBuildEvent>
     <ClCompile>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64EC'">stdc17</LanguageStandard_C>
+
       <BuildStlModules Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64EC'">true</BuildStlModules>
       <DebugInformationFormat Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64EC'">OldStyle</DebugInformationFormat>
     </ClCompile>
     <ClCompile>
-      <LanguageStandard_C Condition="'$(Configuration)|$(Platform)'=='Release|ARM64EC'">stdc17</LanguageStandard_C>
+
       <BuildStlModules Condition="'$(Configuration)|$(Platform)'=='Release|ARM64EC'">true</BuildStlModules>
       <DebugInformationFormat Condition="'$(Configuration)|$(Platform)'=='Release|ARM64EC'">OldStyle</DebugInformationFormat>
     </ClCompile>