diff --git a/Sources/Engine/Engine.swift b/Sources/Engine/Engine.swift
index a60ef7e8..a8b723f2 100644
--- a/Sources/Engine/Engine.swift
+++ b/Sources/Engine/Engine.swift
@@ -14,7 +14,7 @@ public protocol EngineDelegate: class {
 
 public protocol Engine {
     func register(delegate: EngineDelegate)
-    func start(request: URLRequest)
+    func start(request: URLRequest, configuration: URLSessionConfiguration?)
     func stop(closeCode: UInt16)
     func forceStop()
     func write(data: Data, opcode: FrameOpCode, completion: (() -> ())?)
diff --git a/Sources/Engine/NativeEngine.swift b/Sources/Engine/NativeEngine.swift
index 1bd5b6a8..92dc1161 100644
--- a/Sources/Engine/NativeEngine.swift
+++ b/Sources/Engine/NativeEngine.swift
@@ -17,8 +17,9 @@ public class NativeEngine: NSObject, Engine, URLSessionDataDelegate, URLSessionW
         self.delegate = delegate
     }
 
-    public func start(request: URLRequest) {
-        let session = URLSession(configuration: URLSessionConfiguration.default, delegate: self, delegateQueue: nil)
+    public func start(request: URLRequest, configuration: URLSessionConfiguration?) {
+        let sessionConfiguration: URLSessionConfiguration = configuration ?? URLSessionConfiguration.default
+        let session = URLSession(configuration: sessionConfiguration, delegate: self, delegateQueue: nil)
         task = session.webSocketTask(with: request)
         doRead()
         task?.resume()
diff --git a/Sources/Engine/WSEngine.swift b/Sources/Engine/WSEngine.swift
index decca641..f6c36d1a 100644
--- a/Sources/Engine/WSEngine.swift
+++ b/Sources/Engine/WSEngine.swift
@@ -48,7 +48,7 @@ FrameCollectorDelegate, HTTPHandlerDelegate {
         self.delegate = delegate
     }
     
-    public func start(request: URLRequest) {
+    public func start(request: URLRequest, configuration: URLSessionConfiguration?) {
         mutex.wait()
         let isConnected = canSend
         mutex.signal()
diff --git a/Sources/Starscream/WebSocket.swift b/Sources/Starscream/WebSocket.swift
index f09df584..82018dbe 100644
--- a/Sources/Starscream/WebSocket.swift
+++ b/Sources/Starscream/WebSocket.swift
@@ -97,6 +97,7 @@ open class WebSocket: WebSocketClient, EngineDelegate {
     public var onEvent: ((WebSocketEvent) -> Void)?
     
     public var request: URLRequest
+    public var configuration: URLSessionConfiguration? = nil
     // Where the callback is executed. It defaults to the main UI thread queue.
     public var callbackQueue = DispatchQueue.main
     public var respondToPingWithPong: Bool {
@@ -127,7 +128,7 @@ open class WebSocket: WebSocketClient, EngineDelegate {
     
     public func connect() {
         engine.register(delegate: self)
-        engine.start(request: request)
+        engine.start(request: request, configuration: self.configuration)
     }
     
     public func disconnect(closeCode: UInt16 = CloseCode.normal.rawValue) {
diff --git a/Starscream.xcodeproj/project.pbxproj b/Starscream.xcodeproj/project.pbxproj
index 4379a960..d80dfcc7 100644
--- a/Starscream.xcodeproj/project.pbxproj
+++ b/Starscream.xcodeproj/project.pbxproj
@@ -447,14 +447,14 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = "$(SRCROOT)/Sources/Info.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				MARKETING_VERSION = 4.0.4;
 				OTHER_LDFLAGS = "-all_load";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.vluxe.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SKIP_INSTALL = YES;
+				SKIP_INSTALL = NO;
 				SUPPORTS_MACCATALYST = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
@@ -467,6 +467,11 @@
 		33CCF0911F5DDC030099B092 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				"ARCHS[sdk=iphoneos*]" = arm64;
+				"ARCHS[sdk=iphonesimulator*]" = (
+					x86_64,
+					arm64,
+				);
 				BITCODE_GENERATION_MODE = bitcode;
 				CLANG_ENABLE_MODULES = YES;
 				DEFINES_MODULE = YES;
@@ -475,14 +480,14 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = "$(SRCROOT)/Sources/Info.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				MARKETING_VERSION = 4.0.4;
 				OTHER_LDFLAGS = "-all_load";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.vluxe.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SKIP_INSTALL = YES;
+				SKIP_INSTALL = NO;
 				SUPPORTS_MACCATALYST = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
@@ -540,7 +545,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SUPPORTED_PLATFORMS = "iphonesimulator iphoneos macosx appletvos appletvsimulator watchsimulator watchos";
@@ -593,7 +598,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SUPPORTED_PLATFORMS = "iphonesimulator iphoneos macosx appletvos appletvsimulator watchsimulator watchos";
 				SWIFT_VERSION = 5.0;