diff --git a/SensorsAnalyticsSDK.podspec b/SensorsAnalyticsSDK.podspec
index 22f927aa..6f5d4696 100644
--- a/SensorsAnalyticsSDK.podspec
+++ b/SensorsAnalyticsSDK.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "SensorsAnalyticsSDK"
-  s.version      = "4.7.0"
+  s.version      = "4.7.1"
   s.summary      = "The official iOS SDK of Sensors Analytics."
   s.homepage     = "http://www.sensorsdata.cn"
   s.source       = { :git => 'https://github.com/sensorsdata/sa-sdk-ios.git', :tag => "v#{s.version}" }
diff --git a/SensorsAnalyticsSDK/Core/HookDelegate/NSObject+SADelegateProxy.m b/SensorsAnalyticsSDK/Core/HookDelegate/NSObject+SADelegateProxy.m
index c67af4f4..784b2eb3 100644
--- a/SensorsAnalyticsSDK/Core/HookDelegate/NSObject+SADelegateProxy.m
+++ b/SensorsAnalyticsSDK/Core/HookDelegate/NSObject+SADelegateProxy.m
@@ -25,6 +25,10 @@
 #import "NSObject+SADelegateProxy.h"
 #import <objc/runtime.h>
 
+#if TARGET_OS_IOS
+#import <UIKit/UIKit.h>
+#endif
+
 static void *const kSANSObjectDelegateOptionalSelectorsKey = (void *)&kSANSObjectDelegateOptionalSelectorsKey;
 static void *const kSANSObjectDelegateObjectKey = (void *)&kSANSObjectDelegateObjectKey;
 
@@ -53,6 +57,16 @@ - (BOOL)sensorsdata_respondsToSelector:(SEL)aSelector {
     if ([self sensorsdata_respondsToSelector:aSelector]) {
         return YES;
     }
+
+#if TARGET_OS_IOS
+    if ([[UIDevice currentDevice].systemVersion floatValue] == 18.0) {
+        char cString = (char)sel_getName(aSelector);
+        if (cString == '\x01') {
+            return NO;
+        }
+    }
+#endif
+
     if ([self.sensorsdata_optionalSelectors containsObject:NSStringFromSelector(aSelector)]) {
         return YES;
     }
diff --git a/SensorsAnalyticsSDK/Core/SensorsAnalyticsSDK.m b/SensorsAnalyticsSDK/Core/SensorsAnalyticsSDK.m
index 5db6239d..6c123117 100755
--- a/SensorsAnalyticsSDK/Core/SensorsAnalyticsSDK.m
+++ b/SensorsAnalyticsSDK/Core/SensorsAnalyticsSDK.m
@@ -68,7 +68,7 @@
 #import <UIKit/UIApplication.h>
 #endif
 
-#define VERSION @"4.7.0"
+#define VERSION @"4.7.1"
 
 void *SensorsAnalyticsQueueTag = &SensorsAnalyticsQueueTag;
 
diff --git a/SensorsAnalyticsSDK/Core/Tracker/SAEventRecord.h b/SensorsAnalyticsSDK/Core/Tracker/SAEventRecord.h
index 904f1d35..07101d1d 100644
--- a/SensorsAnalyticsSDK/Core/Tracker/SAEventRecord.h
+++ b/SensorsAnalyticsSDK/Core/Tracker/SAEventRecord.h
@@ -62,7 +62,7 @@ typedef NS_ENUM(int, SAEventRecordStatus) {
 - (void)setSecretObject:(NSDictionary *)obj;
 
 - (void)removePayload;
-- (BOOL)mergeSameEKeyRecord:(SAEventRecord *)record;
+- (BOOL)mergeSameEKeyPayloadWithRecord:(SAEventRecord *)record;
 
 @end
 
diff --git a/SensorsAnalyticsSDK/Core/Tracker/SAEventRecord.m b/SensorsAnalyticsSDK/Core/Tracker/SAEventRecord.m
index b2ea9091..22e2ec6f 100644
--- a/SensorsAnalyticsSDK/Core/Tracker/SAEventRecord.m
+++ b/SensorsAnalyticsSDK/Core/Tracker/SAEventRecord.m
@@ -100,7 +100,7 @@ - (void)removePayload {
     [_event removeObjectForKey:kSAEncryptRecordKeyPayload];
 }
 
-- (BOOL)mergeSameEKeyRecord:(SAEventRecord *)record {
+- (BOOL)mergeSameEKeyPayloadWithRecord:(SAEventRecord *)record {
     if (![self.ekey isEqualToString:record.ekey]) {
         return NO;
     }
diff --git a/SensorsAnalyticsSDK/Encrypt/SAFlushJSONInterceptor+Encrypt.m b/SensorsAnalyticsSDK/Encrypt/SAFlushJSONInterceptor+Encrypt.m
index e8e39ac4..cfa55286 100644
--- a/SensorsAnalyticsSDK/Encrypt/SAFlushJSONInterceptor+Encrypt.m
+++ b/SensorsAnalyticsSDK/Encrypt/SAFlushJSONInterceptor+Encrypt.m
@@ -83,7 +83,7 @@ - (NSString *)buildEncryptJSONStringWithFlowData:(SAFlowData *)flowData {
 
             [ekeys addObject:record.ekey];
         } else {
-            [encryptRecords[index] mergeSameEKeyRecord:record];
+            [encryptRecords[index] mergeSameEKeyPayloadWithRecord:record];
         }
     }
     flowData.gzipCode = SAFlushGzipCodeEncrypt;