diff --git a/.gitignore b/.gitignore
index 8260a9b7..5efc6f94 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,6 @@
 #OS X
 .DS_Store
 
-.build/*
-
 # Xcode
 build/*
 *.pbxuser
@@ -18,3 +16,7 @@ profile
 *.moved-aside
 *.playground
 *.framework
+DerivedData
+Index
+Build
+
diff --git a/Graph.podspec b/Graph.podspec
index 5d0153ff..d6dbfed8 100755
--- a/Graph.podspec
+++ b/Graph.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
     s.name = 'Graph'
-    s.version = '3.0.0'
+    s.version = '2.2.0'
     s.license = 'BSD-3-Clause'
     s.summary = 'Graph is a semantic database that is used to create data-driven applications.'
     s.homepage = 'http://graphswift.io'
diff --git a/Graph.xcodeproj/project.pbxproj b/Graph.xcodeproj/project.pbxproj
index 3bd75a36..bb73c728 100644
--- a/Graph.xcodeproj/project.pbxproj
+++ b/Graph.xcodeproj/project.pbxproj
@@ -921,7 +921,7 @@
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -969,7 +969,7 @@
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 				VERSIONING_SYSTEM = "apple-generic";
diff --git a/Graph.xcodeproj/xcshareddata/xcschemes/Graph iOS.xcscheme b/Graph.xcodeproj/xcshareddata/xcschemes/Graph iOS.xcscheme
index 20304c9d..2c382def 100644
--- a/Graph.xcodeproj/xcshareddata/xcschemes/Graph iOS.xcscheme	
+++ b/Graph.xcodeproj/xcshareddata/xcschemes/Graph iOS.xcscheme	
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0830"
+   LastUpgradeVersion = "0900"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
@@ -26,6 +26,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
          <TestableReference
@@ -55,6 +56,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
       launchStyle = "0"
       useCustomWorkingDirectory = "NO"
       ignoresPersistentStateOnLaunch = "NO"
diff --git a/Graph.xcodeproj/xcshareddata/xcschemes/Graph macOS.xcscheme b/Graph.xcodeproj/xcshareddata/xcschemes/Graph macOS.xcscheme
index c8b5594c..2017203e 100644
--- a/Graph.xcodeproj/xcshareddata/xcschemes/Graph macOS.xcscheme	
+++ b/Graph.xcodeproj/xcshareddata/xcschemes/Graph macOS.xcscheme	
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0830"
+   LastUpgradeVersion = "0900"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
@@ -26,6 +26,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
          <TestableReference
@@ -55,6 +56,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
       launchStyle = "0"
       useCustomWorkingDirectory = "NO"
       ignoresPersistentStateOnLaunch = "NO"
diff --git a/Sources/Info.plist b/Sources/Info.plist
index e0f4bf77..a60ea4a4 100644
--- a/Sources/Info.plist
+++ b/Sources/Info.plist
@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>3.0.0</string>
+	<string>2.2.0</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>