diff --git a/.gitignore b/.gitignore
index a33eb7a..f5df177 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,7 @@ DerivedData/
 *.perspectivev3
 !default.perspectivev3
 xcuserdata/
+.DS_Store
 
 ## Other
 *.moved-aside
diff --git a/SimpleImageViewer.xcodeproj/project.pbxproj b/SimpleImageViewer.xcodeproj/project.pbxproj
index a918b3c..bdcce18 100644
--- a/SimpleImageViewer.xcodeproj/project.pbxproj
+++ b/SimpleImageViewer.xcodeproj/project.pbxproj
@@ -281,7 +281,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 0830;
-				LastUpgradeCheck = 0900;
+				LastUpgradeCheck = 1010;
 				ORGANIZATIONNAME = aFrogleap;
 				TargetAttributes = {
 					A02EE5D31EF1897D000EAB41 = {
@@ -447,6 +447,7 @@
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_EMPTY_BODY = YES;
@@ -454,6 +455,7 @@
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
@@ -504,6 +506,7 @@
 				CLANG_WARN_BOOL_CONVERSION = YES;
 				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_EMPTY_BODY = YES;
@@ -511,6 +514,7 @@
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
diff --git a/SimpleImageViewer.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/SimpleImageViewer.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/SimpleImageViewer.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/SimpleImageViewer.xcodeproj/xcshareddata/xcschemes/SimpleImageViewer.xcscheme b/SimpleImageViewer.xcodeproj/xcshareddata/xcschemes/SimpleImageViewer.xcscheme
index bf75f27..a3b5d14 100644
--- a/SimpleImageViewer.xcodeproj/xcshareddata/xcschemes/SimpleImageViewer.xcscheme
+++ b/SimpleImageViewer.xcodeproj/xcshareddata/xcschemes/SimpleImageViewer.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0830"
+   LastUpgradeVersion = "1010"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"