diff --git a/CHANGELOG.md b/CHANGELOG.md
index 37a2d1d..6a17397 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+# 5.5.1    
+-将部分文件与 FCUUID 作区分
+    
 # 5.5.0
 - 增加了后台上传的功能，当 APP 切到后台时，仍然可以继续上传。
 - EndPoint中可以使用自定义的 ServerURL, 如加速上传域名等。
diff --git a/QCloudCOSXML.podspec b/QCloudCOSXML.podspec
index 0073bc2..641745c 100644
--- a/QCloudCOSXML.podspec
+++ b/QCloudCOSXML.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = "QCloudCOSXML"
-s.version              = "5.5.0"
+s.version              = "5.5.1"
   s.summary          = "QCloudCOSXML 腾讯云iOS-SDK组件"
 
   s.homepage         = "https://cloud.tencent.com/"
@@ -9,12 +9,12 @@ s.version              = "5.5.0"
   s.source           = { :git => "https://github.com/tencentyun/qcloud-sdk-ios.git", :tag => s.version.to_s }
   s.ios.deployment_target = '8.0'
   s.source_files = 'QCloudCOSXML/Classes/**/*'
-  s.dependency "QCloudCore",'5.5.0'
+  s.dependency "QCloudCore",'5.5.1'
   s.static_framework = true
 
   s.subspec 'Transfer' do |sbt|
     sbt.source_files = 'QCloudCOSXML/Classes/Transfer/**/*','QCloudCOSXML/Classes/Base/*'
-    sbt.dependency "QCloudCore",'5.5.0'
+    sbt.dependency "QCloudCore",'5.5.1'
  #   sbt.static_framework=true
   end
 end
diff --git a/QCloudCOSXML/Classes/Base/QCloudCOSXMLService.m b/QCloudCOSXML/Classes/Base/QCloudCOSXMLService.m
index f4f89a8..7621cd0 100644
--- a/QCloudCOSXML/Classes/Base/QCloudCOSXMLService.m
+++ b/QCloudCOSXML/Classes/Base/QCloudCOSXMLService.m
@@ -29,7 +29,7 @@
 #import "QCloudCOSXMLService+Private.h"
 #import <QCloudCore/QCloudThreadSafeMutableDictionary.h>
 #import <QCloudCore/QCLoudError.h>
-#import "UIDevice+FCUUID.h"
+#import "UIDevice+QCloudFCUUID.h"
 QCloudThreadSafeMutableDictionary* QCloudCOSXMLServiceCache()
 {
     static QCloudThreadSafeMutableDictionary* CloudcosxmlService = nil;
diff --git a/QCloudCOSXML/Classes/QCloudCOSXMLVersion.h b/QCloudCOSXML/Classes/QCloudCOSXMLVersion.h
index f729abe..451a3c8 100644
--- a/QCloudCOSXML/Classes/QCloudCOSXMLVersion.h
+++ b/QCloudCOSXML/Classes/QCloudCOSXMLVersion.h
@@ -6,11 +6,11 @@
 
 #ifndef QCloudCOSXMLModuleVersion_h
 #define QCloudCOSXMLModuleVersion_h
-#define QCloudCOSXMLModuleVersionNumber 505000
+#define QCloudCOSXMLModuleVersionNumber 505001
 
 //dependency
-#if QCloudCoreModuleVersionNumber != 505000 
-    #error "库QCloudCOSXML依赖QCloudCore最小版本号为5.5.0，当前引入的QCloudCore版本号过低，请及时升级后使用" 
+#if QCloudCoreModuleVersionNumber != 505001 
+    #error "库QCloudCOSXML依赖QCloudCore最小版本号为5.5.1，当前引入的QCloudCore版本号过低，请及时升级后使用" 
 #endif
 
 //
diff --git a/QCloudCOSXML/Classes/QCloudCOSXMLVersion.m b/QCloudCOSXML/Classes/QCloudCOSXMLVersion.m
index f5705a1..589b2cc 100644
--- a/QCloudCOSXML/Classes/QCloudCOSXMLVersion.m
+++ b/QCloudCOSXML/Classes/QCloudCOSXMLVersion.m
@@ -1,5 +1,5 @@
 #import "QCloudCOSXMLVersion.h"
-NSString * const QCloudCOSXMLModuleVersion = @"5.5.0";
+NSString * const QCloudCOSXMLModuleVersion = @"5.5.1";
 NSString * const QCloudCOSXMLModuleName = @"QCloudCOSXML";
 @interface QCloudQCloudCOSXMLLoad : NSObject
 @end
diff --git a/QCloudCore.podspec b/QCloudCore.podspec
index 4bdab7e..27ea98b 100644
--- a/QCloudCore.podspec
+++ b/QCloudCore.podspec
@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = "QCloudCore"
-s.version              = "5.5.0"
+s.version              = "5.5.1"
   s.summary          = "QCloudCore--腾讯云iOS-SDK Foundation"
 
 # This description is used to generate tags and improve search results.
diff --git a/QCloudCore/Classes/FCUUID/UIDevice+FCUUID.h b/QCloudCore/Classes/FCUUID/UIDevice+QCloudFCUUID.h
similarity index 100%
rename from QCloudCore/Classes/FCUUID/UIDevice+FCUUID.h
rename to QCloudCore/Classes/FCUUID/UIDevice+QCloudFCUUID.h
diff --git a/QCloudCore/Classes/FCUUID/UIDevice+FCUUID.m b/QCloudCore/Classes/FCUUID/UIDevice+QCloudFCUUID.m
similarity index 88%
rename from QCloudCore/Classes/FCUUID/UIDevice+FCUUID.m
rename to QCloudCore/Classes/FCUUID/UIDevice+QCloudFCUUID.m
index b6c4001..6ea0c3d 100755
--- a/QCloudCore/Classes/FCUUID/UIDevice+FCUUID.m
+++ b/QCloudCore/Classes/FCUUID/UIDevice+QCloudFCUUID.m
@@ -5,7 +5,7 @@
 //  Copyright © 2015 Fabio Caccamo. All rights reserved.
 //
 
-#import "UIDevice+FCUUID.h"
+#import "UIDevice+QCloudFCUUID.h"
 
 @implementation UIDevice (QCloudFCUUID)
 
diff --git a/QCloudCore/Classes/QCLOUDRestNet/SessionSupport/QCloudHTTPSessionManager.m b/QCloudCore/Classes/QCLOUDRestNet/SessionSupport/QCloudHTTPSessionManager.m
index 41a99ed..cb974fd 100644
--- a/QCloudCore/Classes/QCLOUDRestNet/SessionSupport/QCloudHTTPSessionManager.m
+++ b/QCloudCore/Classes/QCLOUDRestNet/SessionSupport/QCloudHTTPSessionManager.m
@@ -25,7 +25,7 @@
 #import "QCloudFileOffsetBody.h"
 #import "QCloudRequestData.h"
 #import "QCloudService.h"
-#import "UIDevice+FCUUID.h"
+#import "UIDevice+QCloudFCUUID.h"
 #import "QCloudThreadSafeMutableDictionary.h"
 #import "QCloudWeakProxy.h"
 NSString* TaskDataKey(int64_t identifier){
diff --git a/QCloudCore/Classes/QCloudCoreVersion.h b/QCloudCore/Classes/QCloudCoreVersion.h
index 6d8c06c..16560c9 100644
--- a/QCloudCore/Classes/QCloudCoreVersion.h
+++ b/QCloudCore/Classes/QCloudCoreVersion.h
@@ -5,7 +5,7 @@
 
 #ifndef QCloudCoreModuleVersion_h
 #define QCloudCoreModuleVersion_h
-#define QCloudCoreModuleVersionNumber 505000
+#define QCloudCoreModuleVersionNumber 505001
 
 //dependency
 
diff --git a/QCloudCore/Classes/QCloudCoreVersion.m b/QCloudCore/Classes/QCloudCoreVersion.m
index 1aaa4f0..ee9ebfd 100644
--- a/QCloudCore/Classes/QCloudCoreVersion.m
+++ b/QCloudCore/Classes/QCloudCoreVersion.m
@@ -1,5 +1,5 @@
 #import "QCloudCoreVersion.h"
-NSString * const QCloudCoreModuleVersion = @"5.5.0";
+NSString * const QCloudCoreModuleVersion = @"5.5.1";
 NSString * const QCloudCoreModuleName = @"QCloudCore";
 @interface QCloudQCloudCoreLoad : NSObject
 @end