diff --git a/Assets/IsoTools/Addons/Physics/IsoRigidbody.cs b/Assets/IsoTools/Addons/Physics/IsoRigidbody.cs
index 951c407..6ad6a46 100644
--- a/Assets/IsoTools/Addons/Physics/IsoRigidbody.cs
+++ b/Assets/IsoTools/Addons/Physics/IsoRigidbody.cs
@@ -125,7 +125,6 @@ namespace IsoTools.Physics {
 			}
 		}
 
-	#if UNITY_5_4_OR_NEWER
 		public int solverIterations {
 			get { return realRigidbody ? realRigidbody.solverIterations : 0; }
 			set {
@@ -143,25 +142,6 @@ namespace IsoTools.Physics {
 				}
 			}
 		}
-	#else
-		public int solverIterationCount {
-			get { return realRigidbody ? realRigidbody.solverIterationCount : 0; }
-			set {
-				if ( realRigidbody ) {
-					realRigidbody.solverIterationCount = value;
-				}
-			}
-		}
-
-		public int solverVelocityIterationCount {
-			get { return realRigidbody ? realRigidbody.solverVelocityIterationCount : 0; }
-			set {
-				if ( realRigidbody ) {
-					realRigidbody.solverVelocityIterationCount = value;
-				}
-			}
-		}
-	#endif
 
 		public Vector3 velocity {
 			get { return realRigidbody ? realRigidbody.velocity : Vector3.zero; }
diff --git a/Assets/IsoTools/Docs/README.md b/Assets/IsoTools/Docs/README.md
index f22c1a3..05072f4 100644
--- a/Assets/IsoTools/Docs/README.md
+++ b/Assets/IsoTools/Docs/README.md
@@ -22,7 +22,7 @@ Make 2.5D isometric game easy!
 * Physics support! (Colliders, Rigidbodies, Trigger and Collision events)
 * Full PlayMaker support.
 
-Supports Unity 5.3 and newer, both Personal and Pro. Full C# source code included.
+Supports Unity 5.5 and newer, both Personal and Pro. Full C# source code included.
 
 Leave your rating for this Asset. It is very important for me and the development of the project :) Thank you!
 
diff --git a/ProjectSettings/ProjectSettings.asset b/ProjectSettings/ProjectSettings.asset
index 3c39eb3..c742ce3 100644
--- a/ProjectSettings/ProjectSettings.asset
+++ b/ProjectSettings/ProjectSettings.asset
@@ -66,7 +66,7 @@ PlayerSettings:
   disableDepthAndStencilBuffers: 0
   defaultIsFullScreen: 1
   defaultIsNativeResolution: 1
-  runInBackground: 1
+  runInBackground: 0
   captureSingleScreen: 0
   muteOtherAudioSources: 0
   Prepare IOS For Recording: 0
@@ -191,6 +191,9 @@ PlayerSettings:
   iOSBackgroundModes: 0
   iOSMetalForceHardShadows: 0
   appleDeveloperTeamID: 
+  iOSManualSigningProvisioningProfileID: 
+  tvOSManualSigningProvisioningProfileID: 
+  appleEnableAutomaticSigning: 0
   AndroidTargetDevice: 0
   AndroidSplashScreenScale: 0
   androidSplashScreen: {fileID: 0}
@@ -320,6 +323,7 @@ PlayerSettings:
   ps4ParamSfxPath: 
   ps4VideoOutPixelFormat: 0
   ps4VideoOutInitialWidth: 1920
+  ps4VideoOutBaseModeInitialWidth: 1920
   ps4VideoOutReprojectionRate: 120
   ps4PronunciationXMLPath: 
   ps4PronunciationSIGPath: 
@@ -342,6 +346,7 @@ PlayerSettings:
   ps4ApplicationParam4: 0
   ps4DownloadDataSize: 0
   ps4GarlicHeapSize: 2048
+  ps4ProGarlicHeapSize: 2560
   ps4Passcode: KgSnOxla5PMvVHtMgwLFr7qLEJsRxHBI
   ps4UseDebugIl2cppLibs: 0
   ps4pnSessions: 1
@@ -367,6 +372,9 @@ PlayerSettings:
   ps4attribShareSupport: 0
   ps4attribExclusiveVR: 0
   ps4disableAutoHideSplash: 0
+  ps4videoRecordingFeaturesUsed: 0
+  ps4contentSearchFeaturesUsed: 0
+  ps4attribEyeToEyeDistanceSettingVR: 0
   ps4IncludedModules: []
   monoEnv: 
   psp2Splashimage: {fileID: 0}