diff --git a/arm/build/config/compiler/BUILD.gn b/arm/build/config/compiler/BUILD.gn
index c1541f8d..65fc0b5d 100644
--- a/arm/build/config/compiler/BUILD.gn
+++ b/arm/build/config/compiler/BUILD.gn
@@ -2364,10 +2364,12 @@ if (is_win) {
 
   if (current_cpu == "arm64") {
     common_optimize_on_cflags += [ "-march=armv8-a+simd", ]
-  }
-
-  if (is_raspi == true) {
-    common_optimize_on_cflags += [ "-mtune=cortex-a72", ]
+    if (is_raspi == true) {
+      common_optimize_on_cflags += [ "-mtune=cortex-a72", ]
+    }
+    if (is_mac) {
+      common_optimize_on_cflags += [ "-march=armv8.3-a+simd", ]
+    }
   }
 
   common_optimize_on_cflags += [
@@ -2376,6 +2378,9 @@ if (is_win) {
 
   if (current_cpu == "arm64") {
     common_optimize_on_ldflags += [ "-march=armv8-a+simd", ]
+    if (is_mac) {
+      common_optimize_on_ldflags += [ "-march=armv8.3-a+simd", ]
+    }
   }
 
   common_optimize_on_ldflags += [
diff --git a/logos/OLD/technetium1.png b/logos/OLD/technetium1.png
new file mode 100644
index 00000000..68630d39
Binary files /dev/null and b/logos/OLD/technetium1.png differ
diff --git a/logos/OLD/technetium.svg b/logos/OLD/technetium2.svg
similarity index 100%
rename from logos/OLD/technetium.svg
rename to logos/OLD/technetium2.svg
diff --git a/logos/OLD/technetium.png b/logos/OLD/technetium2_22px.png
similarity index 100%
rename from logos/OLD/technetium.png
rename to logos/OLD/technetium2_22px.png
diff --git a/logos/OLD/technetium3.png b/logos/OLD/technetium3.png
new file mode 100644
index 00000000..1dbda43a
Binary files /dev/null and b/logos/OLD/technetium3.png differ