Initial commit

packages/stack/src/utils/ReactNativeFeatures.js

@@ -0,0 +1,10 @@
+import { NativeModules } from 'react-native';
+const { PlatformConstants } = NativeModules;
+
+export const supportsImprovedSpringAnimation = () => {
+  if (PlatformConstants && PlatformConstants.reactNativeVersion) {
+    const { major, minor } = PlatformConstants.reactNativeVersion;
+    return minor >= 50 || (major === 0 && minor === 0); // `master` has major + minor set to 0
+  }
+  return false;
+};