diff --git a/Configurations/Base.xcconfig b/Configurations/Base.xcconfig
index 9b811fe..c9f7c82 100644
--- a/Configurations/Base.xcconfig
+++ b/Configurations/Base.xcconfig
@@ -7,4 +7,4 @@ GCC_VERSION = com.apple.compilers.llvm.clang.1_0
 GCC_PREFIX_HEADER = $(SYSTEM_LIBRARY_DIR)/Frameworks/AppKit.framework/Headers/AppKit.h
 GCC_PRECOMPILE_PREFIX_HEADER = YES
 CLANG_ENABLE_MODULES = YES
-WARNING_CFLAGS = -Weverything -Wno-custom-atomic-properties -Wno-declaration-after-statement -Wno-direct-ivar-access -Wno-float-equal -Wno-gnu -Wno-objc-missing-property-synthesis
+WARNING_CFLAGS = -Weverything -Wno-custom-atomic-properties -Wno-declaration-after-statement -Wno-direct-ivar-access -Wno-float-equal -Wno-gnu -Wno-objc-missing-property-synthesis -Wno-reserved-identifier
diff --git a/MMTabBarView/MMTabBarView/MMAdiumTabStyle.m b/MMTabBarView/MMTabBarView/MMAdiumTabStyle.m
index a615549..1379760 100644
--- a/MMTabBarView/MMTabBarView/MMAdiumTabStyle.m
+++ b/MMTabBarView/MMTabBarView/MMAdiumTabStyle.m
@@ -406,6 +406,9 @@ - (void)drawBezelOfTabBarView:(MMTabBarView *)tabBarView inRect:(NSRect)rect {
 		  alpha:1.0] set];
 		NSRectFill(rect);
 		break;
+
+	default:
+		break;
 	}
 
 	//Draw the border and shadow around the tab bar itself
@@ -473,6 +476,9 @@ - (void)drawBezelOfTabBarView:(MMTabBarView *)tabBarView inRect:(NSRect)rect {
 
 		break;
 	}
+
+	default:
+		break;
 	}
 
 	[NSGraphicsContext restoreGraphicsState];
diff --git a/MMTabBarView/MMTabBarView/MMOverflowPopUpButton.m b/MMTabBarView/MMTabBarView/MMOverflowPopUpButton.m
index f2f6271..92c4039 100644
--- a/MMTabBarView/MMTabBarView/MMOverflowPopUpButton.m
+++ b/MMTabBarView/MMTabBarView/MMOverflowPopUpButton.m
@@ -37,7 +37,11 @@ - (instancetype)initWithFrame:(NSRect)frameRect pullsDown:(BOOL)flag {
     
         _isAnimating = NO;
     
+#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 140000
+		[self setBezelStyle:NSBezelStyleFlexiblePush];
+#else
 		[self setBezelStyle:NSBezelStyleRegularSquare];
+#endif
 		[self setBordered:NO];
 		[self setTitle:@""];
 		[self setPreferredEdge:NSMaxYEdge];
diff --git a/MMTabBarView/MMTabBarView/MMRolloverButtonCell.m b/MMTabBarView/MMTabBarView/MMRolloverButtonCell.m
index 627231a..17ecded 100644
--- a/MMTabBarView/MMTabBarView/MMRolloverButtonCell.m
+++ b/MMTabBarView/MMTabBarView/MMRolloverButtonCell.m
@@ -59,6 +59,8 @@ - (void)setRolloverButtonType:(MMRolloverButtonType)aType {
             break;
         case MMRolloverSwitchButton:
             break;
+        default:
+            break;
     }
     
     [(NSControl *)self.controlView updateCell:self];
diff --git a/MMTabBarView/MMTabBarView/MMSierraTabStyle.m b/MMTabBarView/MMTabBarView/MMSierraTabStyle.m
index e965ecf..b8d8d26 100755
--- a/MMTabBarView/MMTabBarView/MMSierraTabStyle.m
+++ b/MMTabBarView/MMTabBarView/MMSierraTabStyle.m
@@ -176,7 +176,11 @@ - (MMRolloverButton *)rolloverButtonWithFrame:(NSRect)frame ofTabBarView:(MMTabB
 
 - (void)updateAddButton:(MMRolloverButton *)aButton ofTabBarView:(MMTabBarView *)tabBarView {
     if (@available(macos 10.14, *)) {
+#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 140000
+        aButton.bezelStyle = NSBezelStyleFlexiblePush;
+#else
         aButton.bezelStyle = NSBezelStyleRegularSquare;
+#endif
     } else {
         aButton.bordered = YES;
     }
@@ -216,7 +220,11 @@ - (MMRolloverButton *)closeButtonForBounds:(NSRect)theRect ofTabCell:(MMTabBarBu
     closeButton.title=@"";
     closeButton.imagePosition = NSImageOnly;
     closeButton.rolloverButtonType = MMRolloverActionButton;
+#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 140000
+    closeButton.bezelStyle = NSBezelStyleSmallSquare;
+#else
     closeButton.bezelStyle = NSBezelStyleShadowlessSquare;
+#endif
 
     return closeButton;
 
diff --git a/MMTabBarView/MMTabBarView/MMTabBarButtonCell.m b/MMTabBarView/MMTabBarView/MMTabBarButtonCell.m
index df32922..fd8377c 100644
--- a/MMTabBarView/MMTabBarView/MMTabBarButtonCell.m
+++ b/MMTabBarView/MMTabBarView/MMTabBarButtonCell.m
@@ -898,7 +898,11 @@ - (MMRolloverButton *)_closeButtonForBounds:(NSRect)theRect {
     [closeButton setImagePosition:NSImageOnly];
     [closeButton setRolloverButtonType:MMRolloverActionButton];
     [closeButton setBordered:NO];
+#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 140000
+    [closeButton setBezelStyle:NSBezelStyleSmallSquare];
+#else
     [closeButton setBezelStyle:NSBezelStyleShadowlessSquare];
+#endif
 
     return closeButton;
 }
diff --git a/MMTabBarView/MMTabBarView/MMTabBarView.m b/MMTabBarView/MMTabBarView/MMTabBarView.m
index c25842e..37ef2fd 100755
--- a/MMTabBarView/MMTabBarView/MMTabBarView.m
+++ b/MMTabBarView/MMTabBarView/MMTabBarView.m
@@ -58,7 +58,7 @@ CGFloat noIntrinsicMetric(void) {
         return NSViewNoIntrinsicMetric;
     }
     else {
-        return NSViewNoIntrinsicMetric;
+        return NSViewNoInstrinsicMetric;
     }
 }
 
@@ -255,7 +255,7 @@ - (NSSize)intrinsicContentSize
 #pragma mark -
 #pragma mark Characteristics
 
-+ (NSBundle *)bundle;
++ (NSBundle *)bundle
 {
 	static NSBundle *bundle = nil;
 	if (!bundle) {
@@ -2683,12 +2683,36 @@ - (void)_synchronizeSelection {
 - (NSCursor *)resizingMouseCursor {
 
     if (NSWidth(self.frame) <= self.buttonMinWidth) {
+#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 150000
+        if (@available(macOS 15, *)) {
+            return [NSCursor columnResizeCursorInDirections:NSHorizontalDirectionsRight];
+        } else {
+            return NSCursor.resizeRightCursor;
+        }
+#else
         return NSCursor.resizeRightCursor;
+#endif
     }
     else if (NSWidth(self.frame) >= self.buttonMaxWidth)
+#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 150000
+        if (@available(macOS 15, *)) {
+            return [NSCursor columnResizeCursorInDirections:NSHorizontalDirectionsLeft];
+        } else {
+            return NSCursor.resizeLeftCursor;
+        }
+#else
         return NSCursor.resizeLeftCursor;
+#endif
     else  {
+#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 150000
+        if (@available(macOS 15, *)) {
+            return NSCursor.columnResizeCursor;
+        } else {
+            return NSCursor.resizeLeftRightCursor;
+        }
+#else
         return NSCursor.resizeLeftRightCursor;
+#endif
     }
 }
 
@@ -2796,7 +2820,11 @@ - (void)_updateAddTabButton {
     [_addTabButton setImagePosition:NSImageOnly];
     [_addTabButton setRolloverButtonType:MMRolloverActionButton];
     [_addTabButton setBordered:NO];
+#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 140000
+    [_addTabButton setBezelStyle:NSBezelStyleSmallSquare];
+#else
     [_addTabButton setBezelStyle:NSBezelStyleShadowlessSquare];
+#endif
     
     if (_style && [_style respondsToSelector:@selector(updateAddButton:ofTabBarView:)])
         [_style updateAddButton:_addTabButton ofTabBarView:self];