diff --git a/Pragmatic.xcodeproj/project.pbxproj b/Pragmatic.xcodeproj/project.pbxproj
index fb5a28d..33d6b03 100644
--- a/Pragmatic.xcodeproj/project.pbxproj
+++ b/Pragmatic.xcodeproj/project.pbxproj
@@ -209,17 +209,19 @@
 			attributes = {
 				CLASSPREFIX = "";
 				LastSwiftUpdateCheck = 0820;
-				LastUpgradeCheck = 0820;
+				LastUpgradeCheck = 0920;
 				ORGANIZATIONNAME = "";
 				TargetAttributes = {
 					D2AAF87E1E465838000EFE1F = {
 						CreatedOnToolsVersion = 8.2.1;
 						DevelopmentTeam = UPXU4CQZ5P;
+						LastSwiftMigration = 0920;
 						ProvisioningStyle = Automatic;
 					};
 					D2AAF8921E465877000EFE1F = {
 						CreatedOnToolsVersion = 8.2.1;
 						DevelopmentTeam = UPXU4CQZ5P;
+						LastSwiftMigration = 0920;
 						ProvisioningStyle = Automatic;
 					};
 				};
@@ -318,7 +320,9 @@
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
@@ -326,7 +330,11 @@
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
@@ -351,6 +359,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.11;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
+				RUN_CLANG_STATIC_ANALYZER = YES;
 				SDKROOT = macosx;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
@@ -366,7 +375,9 @@
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
@@ -374,7 +385,11 @@
 				CLANG_WARN_ENUM_CONVERSION = YES;
 				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
@@ -392,6 +407,7 @@
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				MACOSX_DEPLOYMENT_TARGET = 10.11;
 				MTL_ENABLE_DEBUG_INFO = NO;
+				RUN_CLANG_STATIC_ANALYZER = YES;
 				SDKROOT = macosx;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 			};
@@ -407,7 +423,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.infinitenexus.PragmaticXcode;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -421,7 +437,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.infinitenexus.PragmaticXcode;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};
@@ -436,7 +452,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.infinitenexus.PragmaticXcode.Pragmatic;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -451,7 +467,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.infinitenexus.PragmaticXcode.Pragmatic;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};
diff --git a/Pragmatic/AppDelegate.swift b/Pragmatic/AppDelegate.swift
index bd779dc..a2b8dc6 100644
--- a/Pragmatic/AppDelegate.swift
+++ b/Pragmatic/AppDelegate.swift
@@ -23,12 +23,12 @@ class AppDelegate: NSObject, NSApplicationDelegate
 	
 	@IBAction func openGH(_ sender: Any)
 	{
-		NSWorkspace.shared().open(URL.init(string: "https://github.com/bgannin/Pragmatic")!)
+		NSWorkspace.shared.open(URL.init(string: "https://github.com/bgannin/Pragmatic")!)
 	}
 	
 	@IBAction func openWiki(_ sender: Any)
 	{
-		NSWorkspace.shared().open(URL.init(string: "https://github.com/bgannin/Pragmatic/wiki")!)
+		NSWorkspace.shared.open(URL.init(string: "https://github.com/bgannin/Pragmatic/wiki")!)
 	}
 }