diff --git a/video/out/cocoa_common.m b/video/out/cocoa_common.m
index 29f6eee026..4560dafe50 100644
--- a/video/out/cocoa_common.m
+++ b/video/out/cocoa_common.m
@@ -41,18 +41,6 @@
 
 #include "osdep/macosx_application.h"
 
-#ifndef NSOpenGLPFAOpenGLProfile
-#define NSOpenGLPFAOpenGLProfile 99
-#endif
-
-#ifndef NSOpenGLProfileVersionLegacy
-#define NSOpenGLProfileVersionLegacy 0x1000
-#endif
-
-#ifndef NSOpenGLProfileVersion3_2Core
-#define NSOpenGLProfileVersion3_2Core 0x3200
-#endif
-
 #define NSLeftAlternateKeyMask  (0x000020 | NSAlternateKeyMask)
 #define NSRightAlternateKeyMask (0x000040 | NSAlternateKeyMask)
 
@@ -68,23 +56,6 @@ static bool RightAltPressed(NSEvent *event)
             NSRightAlternateKeyMask;
 }
 
-// add methods not available on OSX versions prior to 10.7
-#ifndef MAC_OS_X_VERSION_10_7
-@interface NSView (IntroducedInLion)
-- (NSRect)convertRectToBacking:(NSRect)aRect;
-- (void)setWantsBestResolutionOpenGLSurface:(BOOL)aBool;
-@end
-@interface NSEvent (IntroducedInLion)
-- (BOOL)hasPreciseScrollingDeltas;
-@end
-#endif
-
-// add power management assertion not available on OSX versions prior to 10.7
-#ifndef kIOPMAssertionTypePreventUserIdleDisplaySleep
-#define kIOPMAssertionTypePreventUserIdleDisplaySleep \
-    CFSTR("PreventUserIdleDisplaySleep")
-#endif
-
 @interface GLMPlayerWindow : NSWindow <NSWindowDelegate>
 - (BOOL)canBecomeKeyWindow;
 - (BOOL)canBecomeMainWindow;
@@ -208,23 +179,11 @@ static struct vo_cocoa_state *vo_cocoa_init_state(struct vo *vo)
     return s;
 }
 
-static bool supports_hidpi(NSView *view)
-{
-    SEL hdpi_selector = @selector(setWantsBestResolutionOpenGLSurface:);
-    return is_osx_version_at_least(10, 7, 0) && view &&
-           [view respondsToSelector:hdpi_selector];
-}
-
 static NSRect to_pixels(struct vo *vo, NSRect frame)
 {
     struct vo_cocoa_state *s = vo->cocoa;
     NSView *view = [s->window contentView];
-
-    if (supports_hidpi(view)) {
-        return [view convertRectToBacking: frame];
-    } else {
-        return frame;
-    }
+    return [view convertRectToBacking: frame];
 }
 
 void *vo_cocoa_glgetaddr(const char *s)
@@ -252,13 +211,11 @@ static void disable_power_management(struct vo *vo)
 {
     struct vo_cocoa_state *s = vo->cocoa;
     if (s->power_mgmt_assertion) return;
-
-    CFStringRef assertion_type = kIOPMAssertionTypeNoDisplaySleep;
-    if (is_osx_version_at_least(10, 7, 0))
-        assertion_type = kIOPMAssertionTypePreventUserIdleDisplaySleep;
-
-    IOPMAssertionCreateWithName(assertion_type, kIOPMAssertionLevelOn,
-        CFSTR("io.mpv.power_management"), &s->power_mgmt_assertion);
+    IOPMAssertionCreateWithName(
+            kIOPMAssertionTypePreventUserIdleDisplaySleep,
+            kIOPMAssertionLevelOn,
+            CFSTR("io.mpv.power_management"),
+            &s->power_mgmt_assertion);
 }
 
 int vo_cocoa_init(struct vo *vo)
@@ -422,19 +379,15 @@ static int create_window(struct vo *vo, uint32_t d_width, uint32_t d_height,
     GLMPlayerOpenGLView *glView =
         [[GLMPlayerOpenGLView alloc] initWithFrame:glview_rect];
 
-    // check for HiDPI support and enable it (available on 10.7 +)
-    if (supports_hidpi(glView))
-        [glView setWantsBestResolutionOpenGLSurface:YES];
+    [glView setWantsBestResolutionOpenGLSurface:YES];
 
     int i = 0;
     NSOpenGLPixelFormatAttribute attr[32];
-    if (is_osx_version_at_least(10, 7, 0)) {
-      attr[i++] = NSOpenGLPFAOpenGLProfile;
-      if (gl3profile) {
-          attr[i++] = NSOpenGLProfileVersion3_2Core;
-      } else {
-          attr[i++] = NSOpenGLProfileVersionLegacy;
-      }
+    attr[i++] = NSOpenGLPFAOpenGLProfile;
+    if (gl3profile) {
+        attr[i++] = NSOpenGLProfileVersion3_2Core;
+    } else {
+        attr[i++] = NSOpenGLProfileVersionLegacy;
     }
     attr[i++] = NSOpenGLPFADoubleBuffer; // double buffered
     attr[i] = (NSOpenGLPixelFormatAttribute)0;
@@ -874,8 +827,7 @@ int vo_cocoa_cgl_color_size(struct vo *vo)
         delta = - [theEvent deltaX];
     }
 
-    if (is_osx_version_at_least(10, 7, 0) &&
-        [theEvent hasPreciseScrollingDeltas]) {
+    if ([theEvent hasPreciseScrollingDeltas]) {
         s->accumulated_scroll += delta;
         static const CGFloat threshold = 10;
         while (s->accumulated_scroll >= threshold) {
diff --git a/video/out/osx_common.h b/video/out/osx_common.h
index 8d2d70edc4..32bba12d21 100644
--- a/video/out/osx_common.h
+++ b/video/out/osx_common.h
@@ -22,7 +22,6 @@
 struct vo;
 
 int convert_key(unsigned key, unsigned charcode);
-int is_osx_version_at_least(int majorv, int minorv, int bugfixv);
 NSString *escape_loadfile_name(NSString *input);
 
 #endif /* MPLAYER_OSX_COMMON_H */
diff --git a/video/out/osx_common.m b/video/out/osx_common.m
index 93281ecb6e..5b5e4fbd8f 100644
--- a/video/out/osx_common.m
+++ b/video/out/osx_common.m
@@ -115,50 +115,6 @@ int convert_key(unsigned key, unsigned charcode)
     return charcode;
 }
 
-/**
- * Checks at runtime that OSX version is the same or newer than the one
- * provided as input.
- * Currently reads SystemVersion.plist file since Gestalt was deprecated.
- * This is supposedly the current way supported by Apple engineers. More info:
- * http://stackoverflow.com/a/11072974/499456
- */
-int is_osx_version_at_least(int majorv, int minorv, int bugfixv)
-{
-    // Initialize cache
-    static int c_majorv = -1, c_minorv = -1, c_bugfixv = -1;
-
-    // If version cache is empty, fill it
-    if (c_majorv < 0 && c_minorv < 0 && c_bugfixv < 0) {
-        NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-        NSString *plist = @"/System/Library/CoreServices/SystemVersion.plist";
-        NSDictionary *dict = [NSDictionary dictionaryWithContentsOfFile:plist];
-        NSString *version = [dict objectForKey:@"ProductVersion"];
-        NSArray *components = [version componentsSeparatedByString:@"."];
-
-        // All the  above code just sends messages to nil. If anything failed,
-        // we just end up with an invalid components array.
-        if ([components count] != 3) {
-            mp_msg(MSGT_VO, MSGL_ERR, "[osx] Failed to get your system version. "
-                    "Please open a bug report.\n");
-            [pool release];
-            return -1;
-        }
-
-        c_majorv  = [[components objectAtIndex:0] intValue];
-        c_minorv  = [[components objectAtIndex:1] intValue];
-        c_bugfixv = [[components objectAtIndex:2] intValue];
-
-        [pool release];
-    }
-
-    if(c_majorv > majorv ||
-        (c_majorv == majorv && (c_minorv > minorv ||
-            (c_minorv == minorv && c_bugfixv >= bugfixv))))
-        return 1;
-    else
-        return 0;
-}
-
 struct escape_couple {
     NSString *in;
     NSString *out;