diff --git a/Demos/Cube/Cube.xcodeproj/project.pbxproj b/Demos/Cube/Cube.xcodeproj/project.pbxproj
index b6cc7ae..522253f 100644
--- a/Demos/Cube/Cube.xcodeproj/project.pbxproj
+++ b/Demos/Cube/Cube.xcodeproj/project.pbxproj
@@ -246,7 +246,7 @@
 		29B97313FDCFA39411CA2CEA /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 1240;
+				LastUpgradeCheck = 1250;
 			};
 			buildConfigurationList = C01FCF4E08A954540054247B /* Build configuration list for PBXProject "Cube" */;
 			compatibilityVersion = "Xcode 8.0";
diff --git a/Demos/Cube/Cube.xcodeproj/xcshareddata/xcschemes/Cube-iOS.xcscheme b/Demos/Cube/Cube.xcodeproj/xcshareddata/xcschemes/Cube-iOS.xcscheme
index 54595a9..2bc4f6b 100644
--- a/Demos/Cube/Cube.xcodeproj/xcshareddata/xcschemes/Cube-iOS.xcscheme
+++ b/Demos/Cube/Cube.xcodeproj/xcshareddata/xcschemes/Cube-iOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/Demos/Cube/Cube.xcodeproj/xcshareddata/xcschemes/Cube-macOS.xcscheme b/Demos/Cube/Cube.xcodeproj/xcshareddata/xcschemes/Cube-macOS.xcscheme
index 90a5d5a..773702b 100644
--- a/Demos/Cube/Cube.xcodeproj/xcshareddata/xcschemes/Cube-macOS.xcscheme
+++ b/Demos/Cube/Cube.xcodeproj/xcshareddata/xcschemes/Cube-macOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/Demos/Cube/Cube.xcodeproj/xcshareddata/xcschemes/Cube-tvOS.xcscheme b/Demos/Cube/Cube.xcodeproj/xcshareddata/xcschemes/Cube-tvOS.xcscheme
index c63669a..4033454 100644
--- a/Demos/Cube/Cube.xcodeproj/xcshareddata/xcschemes/Cube-tvOS.xcscheme
+++ b/Demos/Cube/Cube.xcodeproj/xcshareddata/xcschemes/Cube-tvOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/project.pbxproj b/ExternalDependencies.xcodeproj/project.pbxproj
index 3efba37..a4a3877 100644
--- a/ExternalDependencies.xcodeproj/project.pbxproj
+++ b/ExternalDependencies.xcodeproj/project.pbxproj
@@ -3799,7 +3799,7 @@
 		A9F55D25198BE6A7004EC31B /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 1240;
+				LastUpgradeCheck = 1250;
 				ORGANIZATIONNAME = "The Brenwill Workshop Ltd.";
 				TargetAttributes = {
 					2FEA0ADD2490320500EEF3AD = {
@@ -4981,6 +4981,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				GCC_WARN_ABOUT_MISSING_PROTOTYPES = NO;
+				GCC_WARN_CHECK_SWITCH_STATEMENTS = NO;
 				HEADER_SEARCH_PATHS = (
 					"$(inherited)",
 					"\"$(SRCROOT)/External/glslang/External/spirv-tools/\"",
@@ -4997,6 +4998,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				GCC_WARN_ABOUT_MISSING_PROTOTYPES = NO;
+				GCC_WARN_CHECK_SWITCH_STATEMENTS = NO;
 				HEADER_SEARCH_PATHS = (
 					"$(inherited)",
 					"\"$(SRCROOT)/External/glslang/External/spirv-tools/\"",
@@ -5135,6 +5137,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				GCC_WARN_ABOUT_MISSING_PROTOTYPES = NO;
+				GCC_WARN_CHECK_SWITCH_STATEMENTS = NO;
 				HEADER_SEARCH_PATHS = (
 					"$(inherited)",
 					"\"$(SRCROOT)/External/glslang/External/spirv-tools/\"",
@@ -5151,6 +5154,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				GCC_WARN_ABOUT_MISSING_PROTOTYPES = NO;
+				GCC_WARN_CHECK_SWITCH_STATEMENTS = NO;
 				HEADER_SEARCH_PATHS = (
 					"$(inherited)",
 					"\"$(SRCROOT)/External/glslang/External/spirv-tools/\"",
@@ -5167,6 +5171,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				GCC_WARN_ABOUT_MISSING_PROTOTYPES = NO;
+				GCC_WARN_CHECK_SWITCH_STATEMENTS = NO;
 				HEADER_SEARCH_PATHS = (
 					"$(inherited)",
 					"\"$(SRCROOT)/External/glslang/External/spirv-tools/\"",
@@ -5183,6 +5188,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				GCC_WARN_ABOUT_MISSING_PROTOTYPES = NO;
+				GCC_WARN_CHECK_SWITCH_STATEMENTS = NO;
 				HEADER_SEARCH_PATHS = (
 					"$(inherited)",
 					"\"$(SRCROOT)/External/glslang/External/spirv-tools/\"",
diff --git "a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies \050Debug\051.xcscheme" "b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies \050Debug\051.xcscheme"
index 34693dd..6e9ad87 100644
--- "a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies \050Debug\051.xcscheme"
+++ "b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies \050Debug\051.xcscheme"
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies-iOS.xcscheme b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies-iOS.xcscheme
index 802fc27..d1ecf86 100644
--- a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies-iOS.xcscheme
+++ b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies-iOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies-macOS.xcscheme b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies-macOS.xcscheme
index 5846076..cc5ab3b 100644
--- a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies-macOS.xcscheme
+++ b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies-macOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies-tvOS.xcscheme b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies-tvOS.xcscheme
index adb3fed..f18686a 100644
--- a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies-tvOS.xcscheme
+++ b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies-tvOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies.xcscheme b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies.xcscheme
index 97780e5..56b380f 100644
--- a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies.xcscheme
+++ b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/ExternalDependencies.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Cross-iOS.xcscheme b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Cross-iOS.xcscheme
index 1fe9646..2acf9dd 100644
--- a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Cross-iOS.xcscheme
+++ b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Cross-iOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Cross-macOS.xcscheme b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Cross-macOS.xcscheme
index 9e936e9..5148b85 100644
--- a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Cross-macOS.xcscheme
+++ b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Cross-macOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Cross-tvOS.xcscheme b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Cross-tvOS.xcscheme
index c80aa20..6a4942d 100644
--- a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Cross-tvOS.xcscheme
+++ b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Cross-tvOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Tools-iOS.xcscheme b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Tools-iOS.xcscheme
index a5d0c8f..eaa04fb 100644
--- a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Tools-iOS.xcscheme
+++ b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Tools-iOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Tools-macOS.xcscheme b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Tools-macOS.xcscheme
index db8e677..68319e4 100644
--- a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Tools-macOS.xcscheme
+++ b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Tools-macOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Tools-tvOS.xcscheme b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Tools-tvOS.xcscheme
index dbd6257..12ddd63 100644
--- a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Tools-tvOS.xcscheme
+++ b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/SPIRV-Tools-tvOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/glslang-iOS.xcscheme b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/glslang-iOS.xcscheme
index e491c44..59d0f9a 100644
--- a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/glslang-iOS.xcscheme
+++ b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/glslang-iOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/glslang-macOS.xcscheme b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/glslang-macOS.xcscheme
index 23c87d7..935e19f 100644
--- a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/glslang-macOS.xcscheme
+++ b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/glslang-macOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/glslang-tvOS.xcscheme b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/glslang-tvOS.xcscheme
index a4e0699..6b4eb2e 100644
--- a/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/glslang-tvOS.xcscheme
+++ b/ExternalDependencies.xcodeproj/xcshareddata/xcschemes/glslang-tvOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/MoltenVK/MoltenVK.xcodeproj/project.pbxproj b/MoltenVK/MoltenVK.xcodeproj/project.pbxproj
index 7c72906..cac183f 100644
--- a/MoltenVK/MoltenVK.xcodeproj/project.pbxproj
+++ b/MoltenVK/MoltenVK.xcodeproj/project.pbxproj
@@ -1072,7 +1072,7 @@
 		A9F55D25198BE6A7004EC31B /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 1240;
+				LastUpgradeCheck = 1250;
 				ORGANIZATIONNAME = "The Brenwill Workshop Ltd.";
 				TargetAttributes = {
 					A9B8EE091A98D796009C5A02 = {
diff --git a/MoltenVK/MoltenVK.xcodeproj/xcshareddata/xcschemes/MoltenVK-iOS.xcscheme b/MoltenVK/MoltenVK.xcodeproj/xcshareddata/xcschemes/MoltenVK-iOS.xcscheme
index 700378d..43046e6 100644
--- a/MoltenVK/MoltenVK.xcodeproj/xcshareddata/xcschemes/MoltenVK-iOS.xcscheme
+++ b/MoltenVK/MoltenVK.xcodeproj/xcshareddata/xcschemes/MoltenVK-iOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/MoltenVK/MoltenVK.xcodeproj/xcshareddata/xcschemes/MoltenVK-macOS.xcscheme b/MoltenVK/MoltenVK.xcodeproj/xcshareddata/xcschemes/MoltenVK-macOS.xcscheme
index e14c1b4..7fc41f1 100644
--- a/MoltenVK/MoltenVK.xcodeproj/xcshareddata/xcschemes/MoltenVK-macOS.xcscheme
+++ b/MoltenVK/MoltenVK.xcodeproj/xcshareddata/xcschemes/MoltenVK-macOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/MoltenVK/MoltenVK.xcodeproj/xcshareddata/xcschemes/MoltenVK-tvOS.xcscheme b/MoltenVK/MoltenVK.xcodeproj/xcshareddata/xcschemes/MoltenVK-tvOS.xcscheme
index 2be01a4..c9ea68c 100644
--- a/MoltenVK/MoltenVK.xcodeproj/xcshareddata/xcschemes/MoltenVK-tvOS.xcscheme
+++ b/MoltenVK/MoltenVK.xcodeproj/xcshareddata/xcschemes/MoltenVK-tvOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/MoltenVK/MoltenVK/Commands/MVKMTLResourceBindings.h b/MoltenVK/MoltenVK/Commands/MVKMTLResourceBindings.h
index b47c756..f332168 100644
--- a/MoltenVK/MoltenVK/Commands/MVKMTLResourceBindings.h
+++ b/MoltenVK/MoltenVK/Commands/MVKMTLResourceBindings.h
@@ -29,7 +29,7 @@
 
 
 /** Describes a MTLTexture resource binding. */
-typedef struct {
+typedef struct MVKMTLTextureBinding {
     union { id<MTLTexture> mtlTexture = nil; id<MTLTexture> mtlResource; }; // aliases
     uint32_t swizzle = 0;
 	uint16_t index = 0;
@@ -37,14 +37,14 @@
 } MVKMTLTextureBinding;
 
 /** Describes a MTLSamplerState resource binding. */
-typedef struct {
+typedef struct MVKMTLSamplerStateBinding {
     union { id<MTLSamplerState> mtlSamplerState = nil; id<MTLSamplerState> mtlResource; }; // aliases
     uint16_t index = 0;
     bool isDirty = true;
 } MVKMTLSamplerStateBinding;
 
 /** Describes a MTLBuffer resource binding. */
-typedef struct {
+typedef struct MVKMTLBufferBinding {
     union { id<MTLBuffer> mtlBuffer = nil; id<MTLBuffer> mtlResource; const void* mtlBytes; }; // aliases
     VkDeviceSize offset = 0;
     uint32_t size = 0;
@@ -54,7 +54,7 @@
 } MVKMTLBufferBinding;
 
 /** Describes a MTLBuffer resource binding as used for an index buffer. */
-typedef struct {
+typedef struct MVKIndexMTLBufferBinding {
     union { id<MTLBuffer> mtlBuffer = nil; id<MTLBuffer> mtlResource; }; // aliases
     VkDeviceSize offset = 0;
     uint8_t mtlIndexType = 0;		// MTLIndexType
diff --git a/MoltenVK/MoltenVK/GPUObjects/MVKDevice.h b/MoltenVK/MoltenVK/GPUObjects/MVKDevice.h
index c389deb..23e22d4 100644
--- a/MoltenVK/MoltenVK/GPUObjects/MVKDevice.h
+++ b/MoltenVK/MoltenVK/GPUObjects/MVKDevice.h
@@ -401,7 +401,7 @@
 #pragma mark -
 #pragma mark MVKDevice
 
-typedef struct {
+typedef struct MVKMTLBlitEncoder {
 	id<MTLBlitCommandEncoder> mtlBlitEncoder = nil;
 	id<MTLCommandBuffer> mtlCmdBuffer = nil;
 } MVKMTLBlitEncoder;
@@ -970,6 +970,9 @@
 /** Returns the registry ID of the specified device, or zero if the device does not have a registry ID. */
 uint64_t mvkGetRegistryID(id<MTLDevice> mtlDevice);
 
+/** Returns whether the MTLDevice supports BC texture compression. */
+bool mvkSupportsBCTextureCompression(id<MTLDevice> mtlDevice);
+
 /** Redefinitions because Mac Catalyst doesn't support feature sets. */
 #if MVK_MACCAT
 #define MTLFeatureSet_macOS_GPUFamily1_v1		MTLGPUFamilyMacCatalyst1
diff --git a/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm b/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm
index 0c34db3..2a4fd6e 100644
--- a/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm
+++ b/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm
@@ -1594,6 +1594,7 @@
     _features.inheritedQueries = true;
 
 	_features.shaderSampledImageArrayDynamicIndexing = _metalFeatures.arrayOfTextures;
+	_features.textureCompressionBC = mvkSupportsBCTextureCompression(_mtlDevice);
 
     if (_metalFeatures.indirectDrawing && _metalFeatures.baseVertexInstanceDrawing) {
         _features.drawIndirectFirstInstance = true;
@@ -1664,7 +1665,6 @@
 #endif
 
 #if MVK_MACOS
-    _features.textureCompressionBC = true;
     _features.occlusionQueryPrecise = true;
     _features.imageCubeArray = true;
     _features.depthClamp = true;
@@ -1696,12 +1696,6 @@
         _features.textureCompressionETC2 = true;
         _features.textureCompressionASTC_LDR = true;
     }
-
-#if MVK_MACOS_APPLE_SILICON
-	if ([_mtlDevice respondsToSelector: @selector(supportsBCTextureCompression)]) {
-		_features.textureCompressionBC = _mtlDevice.supportsBCTextureCompression;
-	}
-#endif
 #endif
 }
 
@@ -4171,3 +4165,21 @@
 uint64_t mvkGetRegistryID(id<MTLDevice> mtlDevice) {
 	return [mtlDevice respondsToSelector: @selector(registryID)] ? mtlDevice.registryID : 0;
 }
+
+// Since MacCatalyst does not support supportsBCTextureCompression, it is not possible
+// for Apple Silicon to indicate a lack of support for BCn when running MacCatalyst.
+// Therefore, assume for now that this means MacCatalyst does not actually support BCn.
+// Further evidence may change this approach.
+bool mvkSupportsBCTextureCompression(id<MTLDevice> mtlDevice) {
+#if MVK_IOS || MVK_TVOS || MVK_MACCAT
+	return false;
+#endif
+#if MVK_MACOS && !MVK_MACCAT
+#if MVK_XCODE_12
+	if ([mtlDevice respondsToSelector: @selector(supportsBCTextureCompression)]) {
+		return mtlDevice.supportsBCTextureCompression;
+	}
+#endif
+	return true;
+#endif
+}
diff --git a/MoltenVK/MoltenVK/GPUObjects/MVKDeviceMemory.h b/MoltenVK/MoltenVK/GPUObjects/MVKDeviceMemory.h
index 9040de0..b08aa46 100644
--- a/MoltenVK/MoltenVK/GPUObjects/MVKDeviceMemory.h
+++ b/MoltenVK/MoltenVK/GPUObjects/MVKDeviceMemory.h
@@ -33,7 +33,7 @@
 
 #pragma mark MVKDeviceMemory
 
-typedef struct {
+typedef struct MVKMappedMemoryRange {
 	VkDeviceSize offset = 0;
 	VkDeviceSize size = 0;
 } MVKMappedMemoryRange;
diff --git a/MoltenVK/MoltenVK/GPUObjects/MVKInstance.h b/MoltenVK/MoltenVK/GPUObjects/MVKInstance.h
index 434f44f..5b7e402 100644
--- a/MoltenVK/MoltenVK/GPUObjects/MVKInstance.h
+++ b/MoltenVK/MoltenVK/GPUObjects/MVKInstance.h
@@ -34,7 +34,7 @@
 
 
 /** Tracks info about entry point function pointer addresses. */
-typedef struct {
+typedef struct MVKEntryPoint {
 	PFN_vkVoidFunction functionPointer;
 	uint32_t apiVersion;
 	const char* ext1Name;
diff --git a/MoltenVK/MoltenVK/GPUObjects/MVKPixelFormats.h b/MoltenVK/MoltenVK/GPUObjects/MVKPixelFormats.h
index 8b55ab2..eb1304c 100644
--- a/MoltenVK/MoltenVK/GPUObjects/MVKPixelFormats.h
+++ b/MoltenVK/MoltenVK/GPUObjects/MVKPixelFormats.h
@@ -137,7 +137,7 @@
 #pragma mark Format descriptors
 
 /** Describes the properties of a VkFormat, including the corresponding Metal pixel and vertex format. */
-typedef struct {
+typedef struct MVKVkFormatDesc {
 	VkFormat vkFormat;
 	MTLPixelFormat mtlPixelFormat;
 	MTLPixelFormat mtlPixelFormatSubstitute;
@@ -162,7 +162,7 @@
 } MVKVkFormatDesc;
 
 /** Describes the properties of a MTLPixelFormat or MTLVertexFormat. */
-typedef struct {
+typedef struct MVKMTLFormatDesc {
 	union {
 		MTLPixelFormat mtlPixelFormat;
 		MTLVertexFormat mtlVertexFormat;
diff --git a/MoltenVK/MoltenVK/GPUObjects/MVKPixelFormats.mm b/MoltenVK/MoltenVK/GPUObjects/MVKPixelFormats.mm
index 3c7fefc..380a33b 100644
--- a/MoltenVK/MoltenVK/GPUObjects/MVKPixelFormats.mm
+++ b/MoltenVK/MoltenVK/GPUObjects/MVKPixelFormats.mm
@@ -1509,9 +1509,7 @@
 		disableMTLPixFmtCaps( RGBA32Float, Filter );
 	}
 
-	if ([mtlDevice respondsToSelector: @selector(supportsBCTextureCompression)] &&
-		!mtlDevice.supportsBCTextureCompression) {
-
+	if ( !mvkSupportsBCTextureCompression(mtlDevice) ) {
 		disableAllMTLPixFmtCaps( BC1_RGBA );
 		disableAllMTLPixFmtCaps( BC1_RGBA_sRGB );
 		disableAllMTLPixFmtCaps( BC2_RGBA );
diff --git a/MoltenVK/MoltenVK/Utility/MVKObjectPool.h b/MoltenVK/MoltenVK/Utility/MVKObjectPool.h
index 1288382..f0a85e1 100644
--- a/MoltenVK/MoltenVK/Utility/MVKObjectPool.h
+++ b/MoltenVK/MoltenVK/Utility/MVKObjectPool.h
@@ -51,7 +51,7 @@
 #pragma mark MVKObjectPool
 
 /** Track pool stats. */
-typedef struct {
+typedef struct MVKObjectPoolCounts {
 	uint64_t created = 0;
 	uint64_t alive = 0;
 	uint64_t resident = 0;
diff --git a/MoltenVKPackaging.xcodeproj/project.pbxproj b/MoltenVKPackaging.xcodeproj/project.pbxproj
index 24a909f..9a36111 100644
--- a/MoltenVKPackaging.xcodeproj/project.pbxproj
+++ b/MoltenVKPackaging.xcodeproj/project.pbxproj
@@ -281,7 +281,7 @@
 		A90B2B1D1A9B6170008EE819 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 1240;
+				LastUpgradeCheck = 1250;
 				TargetAttributes = {
 					A9FEADBC1F3517480010240E = {
 						DevelopmentTeam = VU3TCKU48B;
diff --git a/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MVKShaderConverterTool Package.xcscheme b/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MVKShaderConverterTool Package.xcscheme
index 8371cf0..12d3eed 100644
--- a/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MVKShaderConverterTool Package.xcscheme
+++ b/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MVKShaderConverterTool Package.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git "a/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050Debug\051.xcscheme" "b/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050Debug\051.xcscheme"
index 18d6fd2..a01bc82 100644
--- "a/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050Debug\051.xcscheme"
+++ "b/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050Debug\051.xcscheme"
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git "a/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050iOS only\051.xcscheme" "b/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050iOS only\051.xcscheme"
index 73ce093..ade75f7 100644
--- "a/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050iOS only\051.xcscheme"
+++ "b/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050iOS only\051.xcscheme"
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git "a/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050macOS only\051.xcscheme" "b/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050macOS only\051.xcscheme"
index 1d5691e..e819638 100644
--- "a/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050macOS only\051.xcscheme"
+++ "b/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050macOS only\051.xcscheme"
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git "a/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050tvOS only\051.xcscheme" "b/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050tvOS only\051.xcscheme"
index da52a94..61c487b 100644
--- "a/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050tvOS only\051.xcscheme"
+++ "b/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package \050tvOS only\051.xcscheme"
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package.xcscheme b/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package.xcscheme
index c45664a..536bbe5 100644
--- a/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package.xcscheme
+++ b/MoltenVKPackaging.xcodeproj/xcshareddata/xcschemes/MoltenVK Package.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "NO"
diff --git a/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/project.pbxproj b/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/project.pbxproj
index 81736b2..24cbcaf 100644
--- a/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/project.pbxproj
+++ b/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/project.pbxproj
@@ -359,7 +359,7 @@
 		A9F55D25198BE6A7004EC31B /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 1240;
+				LastUpgradeCheck = 1250;
 				ORGANIZATIONNAME = "The Brenwill Workshop Ltd.";
 				TargetAttributes = {
 					A9092A8C1A81717B00051823 = {
diff --git a/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter-iOS.xcscheme b/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter-iOS.xcscheme
index 9b56440..e75e144 100644
--- a/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter-iOS.xcscheme
+++ b/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter-iOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter-macOS.xcscheme b/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter-macOS.xcscheme
index cc5852e..73c6520 100644
--- a/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter-macOS.xcscheme
+++ b/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter-macOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter-tvOS.xcscheme b/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter-tvOS.xcscheme
index 25e7278..59ef591 100644
--- a/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter-tvOS.xcscheme
+++ b/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter-tvOS.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter.xcscheme b/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter.xcscheme
index a052c78..3c7cb97 100644
--- a/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter.xcscheme
+++ b/MoltenVKShaderConverter/MoltenVKShaderConverter.xcodeproj/xcshareddata/xcschemes/MoltenVKShaderConverter.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1240"
+   LastUpgradeVersion = "1250"
    version = "2.0">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/MoltenVKShaderConverter/MoltenVKShaderConverter/SPIRVToMSLConverter.h b/MoltenVKShaderConverter/MoltenVKShaderConverter/SPIRVToMSLConverter.h
index 062510c..18f260f 100644
--- a/MoltenVKShaderConverter/MoltenVKShaderConverter/SPIRVToMSLConverter.h
+++ b/MoltenVKShaderConverter/MoltenVKShaderConverter/SPIRVToMSLConverter.h
@@ -192,7 +192,7 @@
 	 * THIS STRUCT IS STREAMED OUT AS PART OF THE PIEPLINE CACHE.
 	 * CHANGES TO THIS STRUCT SHOULD BE CAPTURED IN THE STREAMING LOGIC OF THE PIPELINE CACHE.
      */
-	typedef struct {
+	typedef struct SPIRVWorkgroupSizeDimension {
 		uint32_t size = 1;
 		uint32_t specializationID = 0;
 		bool isSpecialized = false;
@@ -206,7 +206,7 @@
 	 * THIS STRUCT IS STREAMED OUT AS PART OF THE PIEPLINE CACHE.
 	 * CHANGES TO THIS STRUCT SHOULD BE CAPTURED IN THE STREAMING LOGIC OF THE PIPELINE CACHE.
      */
-	typedef struct {
+	typedef struct SPIRVEntryPoint {
 		std::string mtlFunctionName = "main0";
 		struct {
 			SPIRVWorkgroupSizeDimension width;
diff --git a/MoltenVKShaderConverter/MoltenVKShaderConverterTool/MoltenVKShaderConverterTool.h b/MoltenVKShaderConverter/MoltenVKShaderConverterTool/MoltenVKShaderConverterTool.h
index 155aca7..81132d7 100644
--- a/MoltenVKShaderConverter/MoltenVKShaderConverterTool/MoltenVKShaderConverterTool.h
+++ b/MoltenVKShaderConverter/MoltenVKShaderConverterTool/MoltenVKShaderConverterTool.h
@@ -27,7 +27,7 @@
 
 namespace mvk {
 
-	typedef struct {
+	typedef struct MVKPerformanceTracker {
 		uint32_t count = 0;
 		double averageDuration = 0.0;
 		double minimumDuration = 0.0;