Change default transform profile to 'hermes-stable'

retyui · web-flow · commit 8cf30bcece8e · 2026-06-15T19:30:43.000+02:00
Issue: #57174
diff --git a/packages/react-native-babel-preset/src/configs/main.js b/packages/react-native-babel-preset/src/configs/main.js
@@ -45,7 +45,7 @@ function isFirstParty(fileName) {
 // getPreset, which is otherwise cached based on `options`. This must be pure,
 // and should be cheap.
 function getTransformProfile(caller) {
-  return caller?.unstable_transformProfile ?? 'default';
+  return caller?.unstable_transformProfile ?? 'hermes-stable';
 }
 
 // use `this.foo = bar` instead of `this.defineProperty('foo', ...)`

Original file line number	Diff line number	Diff line change
`@@ -45,7 +45,7 @@ function isFirstParty(fileName) {`
`45`	`45`	// getPreset, which is otherwise cached based on `options`. This must be pure,
`46`	`46`	`// and should be cheap.`
`47`	`47`	`function getTransformProfile(caller) {`
`48`		`- return caller?.unstable_transformProfile ?? 'default';`
	`48`	`+ return caller?.unstable_transformProfile ?? 'hermes-stable';`
`49`	`49`	`}`
`50`	`50`
`51`	`51`	// use `this.foo = bar` instead of `this.defineProperty('foo', ...)`