diff --git a/Example/update.json b/Example/update.json
new file mode 100644
index 0000000..509a406
--- /dev/null
+++ b/Example/update.json
@@ -0,0 +1,6 @@
+{
+    "android": {
+        "appId": 28605,
+        "appKey": "5gbQes9blswLW_jv8dnp8QBz"
+    }
+}
\ No newline at end of file
diff --git a/android/src/main/java/cn/reactnative/modules/update/DownloadTask.java b/android/src/main/java/cn/reactnative/modules/update/DownloadTask.java
index bee09fa..d37eb56 100644
--- a/android/src/main/java/cn/reactnative/modules/update/DownloadTask.java
+++ b/android/src/main/java/cn/reactnative/modules/update/DownloadTask.java
@@ -430,6 +430,9 @@ class DownloadTask extends AsyncTask<DownloadTaskParams, long[], Void> {
             if (sub.getName().charAt(0) == '.') {
                 continue;
             }
+            if (isFileUpdatedWithinDays(sub, 7)) {
+                continue;
+            }
             if (sub.isFile()) {
                 sub.delete();
             } else {
@@ -441,6 +444,13 @@ class DownloadTask extends AsyncTask<DownloadTaskParams, long[], Void> {
         }
     }
 
+    private boolean isFileUpdatedWithinDays(File file, int days) {
+        long currentTime = System.currentTimeMillis();
+        long lastModified = file.lastModified();
+        long daysInMillis = days * 24 * 60 * 60 * 1000L;
+        return (currentTime - lastModified) < daysInMillis;
+    }
+
     @Override
     protected Void doInBackground(DownloadTaskParams... params) {
         int taskType = params[0].type;
diff --git a/ios/RCTPushy/RCTPushy.mm b/ios/RCTPushy/RCTPushy.mm
index d02a5cb..18a2156 100644
--- a/ios/RCTPushy/RCTPushy.mm
+++ b/ios/RCTPushy/RCTPushy.mm
@@ -536,7 +536,15 @@ RCT_EXPORT_METHOD(markSuccess:(RCTPromiseResolveBlock)resolve
     
     for(NSString *fileName in list) {
         if (![fileName isEqualToString:curVersion]) {
-            [_fileManager removeFile:[downloadDir stringByAppendingPathComponent:fileName] completionHandler:nil];
+            NSString *filePath = [downloadDir stringByAppendingPathComponent:fileName];
+            NSDictionary *attributes = [[NSFileManager defaultManager] attributesOfItemAtPath:filePath error:&error];
+            if (error) {
+                continue;
+            }
+            NSDate *modificationDate = [attributes fileModificationDate];
+            if ([[NSDate date] timeIntervalSinceDate:modificationDate] > 7 * 24 * 60 * 60) {
+                [_fileManager removeFile:filePath completionHandler:nil];
+            }
         }
     }
 }
diff --git a/src/core.ts b/src/core.ts
index 53e4d6c..0ab65df 100644
--- a/src/core.ts
+++ b/src/core.ts
@@ -21,14 +21,14 @@ const PushyConstants = isTurboModuleEnabled
   ? PushyModule.getConstants()
   : PushyModule;
 
-export const downloadRootDir = PushyConstants.downloadRootDir;
-export const packageVersion = PushyConstants.packageVersion;
-export const currentVersion = PushyConstants.currentVersion;
-export const isFirstTime = PushyConstants.isFirstTime;
-export const rolledBackVersion = PushyConstants.rolledBackVersion;
-export const isRolledBack = typeof rolledBackVersion === 'string';
+export const downloadRootDir: string = PushyConstants.downloadRootDir;
+export const packageVersion: string = PushyConstants.packageVersion;
+export const currentVersion: string = PushyConstants.currentVersion;
+export const isFirstTime: boolean = PushyConstants.isFirstTime;
+export const rolledBackVersion: string = PushyConstants.rolledBackVersion;
+export const isRolledBack: boolean = typeof rolledBackVersion === 'string';
 
-export const buildTime = PushyConstants.buildTime;
+export const buildTime: string = PushyConstants.buildTime;
 let uuid = PushyConstants.uuid;
 
 if (Platform.OS === 'android' && !PushyConstants.isUsingBundleUrl) {
diff --git a/src/provider.tsx b/src/provider.tsx
index 15d373d..6432354 100644
--- a/src/provider.tsx
+++ b/src/provider.tsx
@@ -166,7 +166,7 @@ export const PushyProvider = ({
       if (!info) {
         return;
       }
-      const rollout = info.config?.rollout;
+      const rollout = info.config?.rollout?.[packageVersion];
       if (rollout) {
         if (!isInRollout(rollout)) {
           log(`not in ${rollout}% rollout, ignored`);
diff --git a/src/type.ts b/src/type.ts
index eb03107..39b761f 100644
--- a/src/type.ts
+++ b/src/type.ts
@@ -8,7 +8,9 @@ export interface CheckResult {
   description?: string;
   metaInfo?: string;
   config?: {
-    rollout?: number;
+    rollout?: {
+      [packageVersion: string]: number;
+    };
     [key: string]: any;
   };
   pdiff?: string;