diff --git a/SDAutoLayout.podspec b/SDAutoLayout.podspec
index 163067f..5340900 100644
--- a/SDAutoLayout.podspec
+++ b/SDAutoLayout.podspec
@@ -1,8 +1,8 @@
 Pod::Spec.new do |s|
 
   s.name         = "SDAutoLayout"
-  s.version      = "2.1.3"
-  s.summary      = "The most easy way for autoLayout.    2.1.3版本更新内容：增加设置偏移量offset功能；修复用xib生成的view出现的部分约束失效问题；修复其他bug"
+  s.version      = "2.1.5"
+  s.summary      = "The most easy way for autoLayout.    2.1.5版本更新内容：实现在tableview插入新的cell数据时自动缓存管理"
 
   s.homepage     = "https://github.com/gsdios/SDAutoLayout"
   # s.screenshots  = "https://camo.githubusercontent.com/5d9e879c7006297b3d6e12c20c6cd1e15bf83016/687474703a2f2f7777332e73696e61696d672e636e2f626d6964646c652f39623831343665646777316578346d756b69787236673230396730376c6864742e676966"
@@ -14,7 +14,7 @@ Pod::Spec.new do |s|
   s.platform     = :ios
   s.platform     = :ios, "7.0"
 
-  s.source       = { :git => "https://github.com/gsdios/SDAutoLayout.git", :tag => "2.1.3"}
+  s.source       = { :git => "https://github.com/gsdios/SDAutoLayout.git", :tag => "2.1.5"}
 
   s.source_files  = "SDAutoLayoutDemo/SDAutoLayout/**/*.{h,m}"
 
diff --git a/SDAutoLayoutDemo.xcodeproj/project.xcworkspace/xcuserdata/aier.xcuserdatad/UserInterfaceState.xcuserstate b/SDAutoLayoutDemo.xcodeproj/project.xcworkspace/xcuserdata/aier.xcuserdatad/UserInterfaceState.xcuserstate
index 8f9f5eb..d2f2555 100644
Binary files a/SDAutoLayoutDemo.xcodeproj/project.xcworkspace/xcuserdata/aier.xcuserdatad/UserInterfaceState.xcuserstate and b/SDAutoLayoutDemo.xcodeproj/project.xcworkspace/xcuserdata/aier.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/SDAutoLayoutDemo/SDAutoLayout/UITableView+SDAutoTableViewCellHeight.m b/SDAutoLayoutDemo/SDAutoLayout/UITableView+SDAutoTableViewCellHeight.m
index e184028..0e54a60 100644
--- a/SDAutoLayoutDemo/SDAutoLayout/UITableView+SDAutoTableViewCellHeight.m
+++ b/SDAutoLayoutDemo/SDAutoLayout/UITableView+SDAutoTableViewCellHeight.m
@@ -392,7 +392,7 @@ - (void)sd_reloadRowsAtIndexPaths:(NSArray *)indexPaths withRowAnimation:(UITabl
     [self sd_reloadRowsAtIndexPaths:indexPaths withRowAnimation:animation];
 }
 
-- (void)sd_deleteRowsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation
+- (void)sd_deleteRowsAtIndexPaths:(NSArray *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation
 {
     for (NSIndexPath *indexPath in indexPaths) {
         [self.cellAutoHeightManager deleteThenResetHeightCache:indexPath];
@@ -401,7 +401,7 @@ - (void)sd_deleteRowsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths withRowAn
 }
 
 
-- (void)sd_insertRowsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation
+- (void)sd_insertRowsAtIndexPaths:(NSArray *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation
 {
     [self.cellAutoHeightManager insertNewDataAtIndexPaths:indexPaths];
     [self sd_insertRowsAtIndexPaths:indexPaths withRowAnimation:animation];