Merge branch 'drop-ios-12-support'

35 files changed, 67 insertions, 545 deletions

diff --git a/ios/CHANGELOG.md b/ios/CHANGELOG.md
index 695bf14a17..73eca63dda 100644
--- a/ios/CHANGELOG.md
+++ b/ios/CHANGELOG.md
@@ -45,6 +45,9 @@ with the option to buy more time.
 - Fix invalid map camera position during the app launch and keep it up to date when multitasking.
 - Fix animation glitch when expanding partially visible cell in location picker.
 
+## Removed
+- Remove iOS 12 support.
+
 
 ## [2022.2] - 2022-04-28
 ### Added
diff --git a/ios/MullvadVPN.xcodeproj/project.pbxproj b/ios/MullvadVPN.xcodeproj/project.pbxproj
index 35842fcd3a..e86d8aab37 100644
--- a/ios/MullvadVPN.xcodeproj/project.pbxproj
+++ b/ios/MullvadVPN.xcodeproj/project.pbxproj
@@ -53,11 +53,9 @@
 		5820675E26E6839900655B05 /* PresentAlertOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5820675D26E6839900655B05 /* PresentAlertOperation.swift */; };
 		5820676226E75D8500655B05 /* REST.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5820674D26E6510200655B05 /* REST.swift */; };
 		5820676426E771DB00655B05 /* TunnelManagerErrors.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5820676326E771DB00655B05 /* TunnelManagerErrors.swift */; };
-		5820676826E79E7B00655B05 /* Result+UIBackgroundFetchResult.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5820676726E79E7B00655B05 /* Result+UIBackgroundFetchResult.swift */; };
 		5820EDA9288FE064006BF4E4 /* DeviceManagementInteractor.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5820EDA8288FE064006BF4E4 /* DeviceManagementInteractor.swift */; };
 		5820EDAB288FF0D2006BF4E4 /* DeviceRowView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5820EDAA288FF0D2006BF4E4 /* DeviceRowView.swift */; };
 		5823FA5426CE49F700283BF8 /* TunnelObserver.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5823FA5326CE49F600283BF8 /* TunnelObserver.swift */; };
-		58289082286B590900478596 /* UIFont+Monospaced.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58289081286B590900478596 /* UIFont+Monospaced.swift */; };
 		58293FAE2510CA58005D0BB5 /* ProblemReportViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58293FAC2510CA58005D0BB5 /* ProblemReportViewController.swift */; };
 		58293FB125124117005D0BB5 /* CustomTextField.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58293FB025124117005D0BB5 /* CustomTextField.swift */; };
 		58293FB3251241B4005D0BB5 /* CustomTextView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58293FB2251241B3005D0BB5 /* CustomTextView.swift */; };
@@ -119,7 +117,6 @@
 		58554F7D280D6FE000013055 /* RESTURLSession.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58554F7C280D6FE000013055 /* RESTURLSession.swift */; };
 		58561C99239A5D1500BD6B5E /* IPEndpoint.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58561C98239A5D1500BD6B5E /* IPEndpoint.swift */; };
 		58561C9A239A5D1500BD6B5E /* IPEndpoint.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58561C98239A5D1500BD6B5E /* IPEndpoint.swift */; };
-		5856D13727450A8A00DFD627 /* UIImage+TintColor.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5856D13627450A8A00DFD627 /* UIImage+TintColor.swift */; };
 		5857F23424C8443700CF6F47 /* AsyncOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 58E973DD24850EB600096F90 /* AsyncOperation.swift */; };
 		5857F23824C8446700CF6F47 /* AsyncBlockOperation.swift in Sources */ = {isa = PBXBuildFile; fileRef = 580EE22324B3243100F9D8A1 /* AsyncBlockOperation.swift */; };
 		5857F24324C8662600CF6F47 /* SelectLocationHeaderView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5857F24224C8662600CF6F47 /* SelectLocationHeaderView.swift */; };
@@ -401,7 +398,6 @@
 		5820675A26E6576800655B05 /* RelayCache.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RelayCache.swift; sourceTree = "<group>"; };
 		5820675D26E6839900655B05 /* PresentAlertOperation.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PresentAlertOperation.swift; sourceTree = "<group>"; };
 		5820676326E771DB00655B05 /* TunnelManagerErrors.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TunnelManagerErrors.swift; sourceTree = "<group>"; };
-		5820676726E79E7B00655B05 /* Result+UIBackgroundFetchResult.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Result+UIBackgroundFetchResult.swift"; sourceTree = "<group>"; };
 		5820EDA8288FE064006BF4E4 /* DeviceManagementInteractor.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DeviceManagementInteractor.swift; sourceTree = "<group>"; };
 		5820EDAA288FF0D2006BF4E4 /* DeviceRowView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DeviceRowView.swift; sourceTree = "<group>"; };
 		58218E1428B65058000C624F /* IPv4Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = IPv4Header.h; sourceTree = "<group>"; };
@@ -409,7 +405,6 @@
 		58218E1628B65396000C624F /* ICMPHeader.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = ICMPHeader.h; sourceTree = "<group>"; };
 		5823FA4F26CA690600283BF8 /* OSLogHandler.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OSLogHandler.swift; sourceTree = "<group>"; };
 		5823FA5326CE49F600283BF8 /* TunnelObserver.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TunnelObserver.swift; sourceTree = "<group>"; };
-		58289081286B590900478596 /* UIFont+Monospaced.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UIFont+Monospaced.swift"; sourceTree = "<group>"; };
 		58293FAC2510CA58005D0BB5 /* ProblemReportViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ProblemReportViewController.swift; sourceTree = "<group>"; };
 		58293FB025124117005D0BB5 /* CustomTextField.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CustomTextField.swift; sourceTree = "<group>"; };
 		58293FB2251241B3005D0BB5 /* CustomTextView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CustomTextView.swift; sourceTree = "<group>"; };
@@ -452,7 +447,6 @@
 		58554F7A280B125F00013055 /* RESTAccountsProxy.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RESTAccountsProxy.swift; sourceTree = "<group>"; };
 		58554F7C280D6FE000013055 /* RESTURLSession.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RESTURLSession.swift; sourceTree = "<group>"; };
 		58561C98239A5D1500BD6B5E /* IPEndpoint.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = IPEndpoint.swift; sourceTree = "<group>"; };
-		5856D13627450A8A00DFD627 /* UIImage+TintColor.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UIImage+TintColor.swift"; sourceTree = "<group>"; };
 		5857F24224C8662600CF6F47 /* SelectLocationHeaderView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SelectLocationHeaderView.swift; sourceTree = "<group>"; };
 		5857F24624C882D700CF6F47 /* SelectLocationNavigationController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SelectLocationNavigationController.swift; sourceTree = "<group>"; };
 		585CA70E25F8C44600B47C62 /* UIMetrics.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UIMetrics.swift; sourceTree = "<group>"; };
@@ -965,7 +959,6 @@
 				58781CD422AFBA39009B9D8E /* RelaySelector.swift */,
 				585DA87F26B0268500B8C587 /* REST */,
 				58F1311427E0B2AB007AC5BC /* Result+Extensions.swift */,
-				5820676726E79E7B00655B05 /* Result+UIBackgroundFetchResult.swift */,
 				580909D22876D09A0078138D /* RevokedDeviceViewController.swift */,
 				587425C02299833500CA2045 /* RootContainerViewController.swift */,
 				58E25F802837BBBB002CFB2C /* SceneDelegate.swift */,
@@ -1005,8 +998,6 @@
 				5891BF5025E66B1E006D6FB0 /* UIBarButtonItem+KeyboardNavigation.swift */,
 				587CBFE222807F530028DED3 /* UIColor+Helpers.swift */,
 				58CCA0152242560B004F3011 /* UIColor+Palette.swift */,
-				58289081286B590900478596 /* UIFont+Monospaced.swift */,
-				5856D13627450A8A00DFD627 /* UIImage+TintColor.swift */,
 				585CA70E25F8C44600B47C62 /* UIMetrics.swift */,
 				58F7CA872692E34000FC59FD /* WireguardKeysContentView.swift */,
 				58E511E028DDB7F100B0BCDE /* WrappingError.swift */,
@@ -1377,7 +1368,6 @@
 				58A1AA8C23F5584C009F7EA6 /* ConnectionPanelView.swift in Sources */,
 				582BB1B3229574F40055B6EF /* SettingsAccountCell.swift in Sources */,
 				588527B2276B3F0700BAA373 /* LoadTunnelConfigurationOperation.swift in Sources */,
-				58289082286B590900478596 /* UIFont+Monospaced.swift in Sources */,
 				58F1311527E0B2AB007AC5BC /* Result+Extensions.swift in Sources */,
 				5872631B283F6EAB00E14ADF /* Intents.intentdefinition in Sources */,
 				585DA88426B0270700B8C587 /* ServerRelaysResponse.swift in Sources */,
@@ -1416,7 +1406,6 @@
 				58F2E146276A2C9900A79513 /* StopTunnelOperation.swift in Sources */,
 				E1187ABC289BBB850024E748 /* OutOfTimeViewController.swift in Sources */,
 				58DF5B762852108E00E92647 /* InputInjectionBuilder.swift in Sources */,
-				5856D13727450A8A00DFD627 /* UIImage+TintColor.swift in Sources */,
 				58CB0EE024B86751001EF0D8 /* RESTAPIProxy.swift in Sources */,
 				58095C532760EEC700890776 /* RESTNetworkOperation.swift in Sources */,
 				58293FB125124117005D0BB5 /* CustomTextField.swift in Sources */,
@@ -1480,7 +1469,6 @@
 				585DA89326B0323E00B8C587 /* TunnelProviderMessage.swift in Sources */,
 				5891BF1C25E3E3EB006D6FB0 /* Bundle+ProductVersion.swift in Sources */,
 				588BCF26280FE79A009ADCEC /* RESTProxy.swift in Sources */,
-				5820676826E79E7B00655B05 /* Result+UIBackgroundFetchResult.swift in Sources */,
 				5807E2C02432038B00F5FF30 /* String+Split.swift in Sources */,
 				58CE5E66224146200008646E /* LoginViewController.swift in Sources */,
 				58EF580B25D69D7A00AEBA94 /* ProblemReportSubmissionOverlayView.swift in Sources */,
@@ -1737,7 +1725,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
@@ -1794,7 +1782,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				SDKROOT = iphoneos;
diff --git a/ios/MullvadVPN/AccountContentView.swift b/ios/MullvadVPN/AccountContentView.swift
index b0ff256dbc..13c78226e7 100644
--- a/ios/MullvadVPN/AccountContentView.swift
+++ b/ios/MullvadVPN/AccountContentView.swift
@@ -197,7 +197,7 @@ class AccountNumberRow: UIView {
     private let accountNumberLabel: UILabel = {
         let textLabel = UILabel()
         textLabel.translatesAutoresizingMaskIntoConstraints = false
-        textLabel.font = UIFont.backport_monospacedSystemFont(ofSize: 17, weight: .regular)
+        textLabel.font = UIFont.monospacedSystemFont(ofSize: 17, weight: .regular)
         textLabel.textColor = .white
         return textLabel
     }()
@@ -323,12 +323,10 @@ class AccountNumberRow: UIView {
                 )
             )
         } else {
-            var attributes: [NSAttributedString.Key: Any]?
-            if #available(iOS 13.0, *) {
-                attributes = [.accessibilitySpeechSpellOut: true]
-            }
-
-            return NSAttributedString(string: accountNumber, attributes: attributes)
+            return NSAttributedString(
+                string: accountNumber,
+                attributes: [.accessibilitySpeechSpellOut: true]
+            )
         }
     }
 
diff --git a/ios/MullvadVPN/AccountInputGroupView.swift b/ios/MullvadVPN/AccountInputGroupView.swift
index 39ece2f367..3644069c6c 100644
--- a/ios/MullvadVPN/AccountInputGroupView.swift
+++ b/ios/MullvadVPN/AccountInputGroupView.swift
@@ -330,14 +330,9 @@ class AccountInputGroupView: UIView {
         if let accountNumber = accountNumber {
             let formattedNumber = StringFormatter.formattedAccountNumber(from: accountNumber)
 
-            var attributes: [NSAttributedString.Key: Any]?
-            if #available(iOS 13.0, *) {
-                attributes = [.accessibilitySpeechSpellOut: true]
-            }
-
             lastUsedAccountButton.accessibilityAttributedValue = NSAttributedString(
                 string: accountNumber,
-                attributes: attributes
+                attributes: [.accessibilitySpeechSpellOut: true]
             )
 
             UIView.performWithoutAnimation {
@@ -411,7 +406,7 @@ class AccountInputGroupView: UIView {
     // MARK: - Private
 
     private static func accountNumberFont() -> UIFont {
-        return UIFont.backport_monospacedSystemFont(ofSize: 20, weight: .regular)
+        return UIFont.monospacedSystemFont(ofSize: 20, weight: .regular)
     }
 
     private func addTextFieldNotificationObservers() {
diff --git a/ios/MullvadVPN/AccountViewController.swift b/ios/MullvadVPN/AccountViewController.swift
index 5719328c27..88b8654fc8 100644
--- a/ios/MullvadVPN/AccountViewController.swift
+++ b/ios/MullvadVPN/AccountViewController.swift
@@ -151,9 +151,8 @@ class AccountViewController: UIViewController, AppStorePaymentObserver, TunnelOb
         contentView.logoutButton.isEnabled = isInteractionEnabled
 
         view.isUserInteractionEnabled = isInteractionEnabled
-        if #available(iOS 13.0, *) {
-            isModalInPresentation = !isInteractionEnabled
-        }
+        isModalInPresentation = !isInteractionEnabled
+
         navigationItem.setHidesBackButton(!isInteractionEnabled, animated: animated)
     }
 
diff --git a/ios/MullvadVPN/AppButton.swift b/ios/MullvadVPN/AppButton.swift
index 7704fbe49f..7aa404b7f4 100644
--- a/ios/MullvadVPN/AppButton.swift
+++ b/ios/MullvadVPN/AppButton.swift
@@ -287,21 +287,6 @@ class CustomButton: UIButton {
         }
     }
 
-    override func layoutSubviews() {
-        super.layoutSubviews()
-
-        if #available(iOS 13, *) {
-            // no-op
-        } else {
-            // Fix: on iOS 12 the image view frame is not always set, even though the `UIButton`
-            // calls `imageRect` to compute the image layout frame.
-            let imageRect = imageRect(forContentRect: contentRect(forBounds: bounds))
-            if imageView?.frame != imageRect {
-                imageView?.frame = imageRect
-            }
-        }
-    }
-
     private func computeLayout(forContentRect contentRect: CGRect) -> (CGRect, CGRect) {
         var imageRect = super.imageRect(forContentRect: contentRect)
         var titleRect = super.titleRect(forContentRect: contentRect)
diff --git a/ios/MullvadVPN/AppDelegate.swift b/ios/MullvadVPN/AppDelegate.swift
index 10d44fd99b..66a99cc302 100644
--- a/ios/MullvadVPN/AppDelegate.swift
+++ b/ios/MullvadVPN/AppDelegate.swift
@@ -27,9 +27,6 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         return operationQueue
     }()
 
-    // An instance of scene delegate used on iOS 12 or earlier.
-    private var sceneDelegate: SceneDelegate?
-
     // MARK: - Application lifecycle
 
     func application(
@@ -45,14 +42,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         SimulatorTunnelProvider.shared.delegate = simulatorTunnelProvider
         #endif
 
-        if #available(iOS 13.0, *) {
-            registerBackgroundTasks()
-        } else {
-            application.setMinimumBackgroundFetchInterval(
-                ApplicationConfiguration.minimumBackgroundFetchInterval
-            )
-        }
-
+        registerBackgroundTasks()
         setupPaymentHandler()
         setupNotificationHandler()
 
@@ -74,13 +64,6 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
 
         operationQueue.addOperation(setupTunnelManagerOperation)
 
-        if #available(iOS 13, *) {
-            // no-op
-        } else {
-            sceneDelegate = SceneDelegate()
-            sceneDelegate?.setupScene(windowFactory: ClassicWindowFactory())
-        }
-
         return true
     }
 
@@ -97,97 +80,8 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         }
     }
 
-    func application(
-        _ application: UIApplication,
-        performFetchWithCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult)
-            -> Void
-    ) {
-        logger.debug("Start background refresh.")
-
-        let updateAddressCacheOperation = ResultBlockOperation<Bool, Error> { operation in
-            let handle = AddressCache.Tracker.shared.updateEndpoints { completion in
-                operation.finish(completion: completion)
-            }
-
-            operation.addCancellationBlock {
-                handle.cancel()
-            }
-        }
-
-        let updateRelaysOperation = ResultBlockOperation<RelayCache.FetchResult, Error>
-        { operation in
-            let handle = RelayCache.Tracker.shared.updateRelays { completion in
-                operation.finish(completion: completion)
-            }
-
-            operation.addCancellationBlock {
-                handle.cancel()
-            }
-        }
-
-        let rotatePrivateKeyOperation = ResultBlockOperation<Bool, Error> { operation in
-            let handle = TunnelManager.shared.rotatePrivateKey(forceRotate: false) { completion in
-                operation.finish(completion: completion)
-            }
-
-            operation.addCancellationBlock {
-                handle.cancel()
-            }
-        }
-        rotatePrivateKeyOperation.addDependencies([
-            updateRelaysOperation,
-            updateAddressCacheOperation,
-        ])
-
-        let operations = [
-            updateAddressCacheOperation,
-            updateRelaysOperation,
-            rotatePrivateKeyOperation,
-        ]
-
-        let completeOperation = TransformOperation<UIBackgroundFetchResult, Void, Never>(
-            dispatchQueue: .main
-        )
-
-        completeOperation.setExecutionBlock { backgroundFetchResult in
-            self.logger.debug("Finish background refresh. Status: \(backgroundFetchResult).")
-
-            completionHandler(backgroundFetchResult)
-        }
-
-        completeOperation.injectMany(context: [UIBackgroundFetchResult]())
-            .injectCompletion(from: updateAddressCacheOperation, via: { results, completion in
-                results.append(completion.backgroundFetchResult { $0 })
-            })
-            .injectCompletion(from: updateRelaysOperation, via: { results, completion in
-                results.append(completion.backgroundFetchResult { $0 == .newContent })
-            })
-            .injectCompletion(from: rotatePrivateKeyOperation, via: { results, completion in
-                results.append(completion.backgroundFetchResult { $0 })
-            })
-            .reduce { operationResults in
-                let initialResult = operationResults.first ?? .failed
-                let backgroundFetchResult = operationResults
-                    .reduce(initialResult) { partialResult, other in
-                        return partialResult.combine(with: other)
-                    }
-
-                return backgroundFetchResult
-            }
-
-        let groupOperation = GroupOperation(operations: operations)
-        groupOperation.addObserver(
-            BackgroundObserver(name: "Background refresh", cancelUponExpiration: true)
-        )
-
-        let operationQueue = AsyncOperationQueue()
-        operationQueue.addOperation(groupOperation)
-        operationQueue.addOperation(completeOperation)
-    }
-
     // MARK: - UISceneSession lifecycle
 
-    @available(iOS 13.0, *)
     func application(
         _ application: UIApplication,
         configurationForConnecting connectingSceneSession: UISceneSession,
@@ -204,7 +98,6 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         return sceneConfiguration
     }
 
-    @available(iOS 13.0, *)
     func application(
         _ application: UIApplication,
         didDiscardSceneSessions sceneSessions: Set<UISceneSession>
@@ -216,14 +109,12 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
 
     // MARK: - Background tasks
 
-    @available(iOS 13, *)
     private func registerBackgroundTasks() {
         registerAppRefreshTask()
         registerAddressCacheUpdateTask()
         registerKeyRotationTask()
     }
 
-    @available(iOS 13.0, *)
     private func registerAppRefreshTask() {
         let isRegistered = BGTaskScheduler.shared.register(
             forTaskWithIdentifier: ApplicationConfiguration.appRefreshTaskIdentifier,
@@ -247,7 +138,6 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         }
     }
 
-    @available(iOS 13.0, *)
     private func registerKeyRotationTask() {
         let isRegistered = BGTaskScheduler.shared.register(
             forTaskWithIdentifier: ApplicationConfiguration.privateKeyRotationTaskIdentifier,
@@ -271,7 +161,6 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         }
     }
 
-    @available(iOS 13.0, *)
     private func registerAddressCacheUpdateTask() {
         let isRegistered = BGTaskScheduler.shared.register(
             forTaskWithIdentifier: ApplicationConfiguration.addressCacheUpdateTaskIdentifier,
@@ -295,14 +184,12 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         }
     }
 
-    @available(iOS 13.0, *)
     func scheduleBackgroundTasks() {
         scheduleAppRefreshTask()
         scheduleKeyRotationTask()
         scheduleAddressCacheUpdateTask()
     }
 
-    @available(iOS 13.0, *)
     private func scheduleAppRefreshTask() {
         do {
             let date = RelayCache.Tracker.shared.getNextUpdateDate()
@@ -323,7 +210,6 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         }
     }
 
-    @available(iOS 13.0, *)
     private func scheduleKeyRotationTask() {
         do {
             guard let date = TunnelManager.shared.getNextKeyRotationDate() else {
@@ -347,7 +233,6 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         }
     }
 
-    @available(iOS 13.0, *)
     private func scheduleAddressCacheUpdateTask() {
         do {
             let date = AddressCache.Tracker.shared.nextScheduleDate()
@@ -411,14 +296,10 @@ extension AppDelegate: UNUserNotificationCenterDelegate {
             if response.notification.request.identifier == accountExpiryNotificationIdentifier,
                response.actionIdentifier == UNNotificationDefaultActionIdentifier
             {
-                if #available(iOS 13.0, *) {
-                    let sceneDelegate = UIApplication.shared.connectedScenes
-                        .first?.delegate as? SceneDelegate
+                let sceneDelegate = UIApplication.shared.connectedScenes
+                    .first?.delegate as? SceneDelegate
 
-                    sceneDelegate?.showUserAccount()
-                } else {
-                    self.sceneDelegate?.showUserAccount()
-                }
+                sceneDelegate?.showUserAccount()
             }
 
             completionHandler()
diff --git a/ios/MullvadVPN/AutomaticKeyboardResponder.swift b/ios/MullvadVPN/AutomaticKeyboardResponder.swift
index ee3a97bfa8..553b9d948a 100644
--- a/ios/MullvadVPN/AutomaticKeyboardResponder.swift
+++ b/ios/MullvadVPN/AutomaticKeyboardResponder.swift
@@ -171,10 +171,12 @@ extension AutomaticKeyboardResponder {
         self.init(targetView: targetView) { scrollView, offset in
             if scrollView.canBecomeFirstResponder {
                 scrollView.contentInset.bottom = targetView.isFirstResponder ? offset : 0
-                scrollView.scrollIndicatorInsets.bottom = targetView.isFirstResponder ? offset : 0
+                scrollView.verticalScrollIndicatorInsets.bottom = targetView.isFirstResponder
+                    ? offset
+                    : 0
             } else {
                 scrollView.contentInset.bottom = offset
-                scrollView.scrollIndicatorInsets.bottom = offset
+                scrollView.verticalScrollIndicatorInsets.bottom = offset
             }
         }
     }
diff --git a/ios/MullvadVPN/ConnectContentView.swift b/ios/MullvadVPN/ConnectContentView.swift
index f158aa90eb..faa54413b7 100644
--- a/ios/MullvadVPN/ConnectContentView.swift
+++ b/ios/MullvadVPN/ConnectContentView.swift
@@ -108,10 +108,7 @@ class ConnectContentView: UIView {
 
         backgroundColor = .primaryColor
         layoutMargins = UIMetrics.contentLayoutMargins
-
-        if #available(iOS 13.0, *) {
-            accessibilityContainerType = .semanticGroup
-        }
+        accessibilityContainerType = .semanticGroup
 
         addSubviews()
     }
diff --git a/ios/MullvadVPN/ConnectViewController.swift b/ios/MullvadVPN/ConnectViewController.swift
index e3da0fe159..078edaf8f0 100644
--- a/ios/MullvadVPN/ConnectViewController.swift
+++ b/ios/MullvadVPN/ConnectViewController.swift
@@ -501,10 +501,8 @@ class ConnectViewController: UIViewController, MKMapViewDelegate, RootContainmen
             forAnnotationViewWithReuseIdentifier: Self.locationMarkerReuseIdentifier
         )
 
-        if #available(iOS 13.0, *) {
-            // Use dark style for the map to dim the map grid
-            contentView.mapView.overrideUserInterfaceStyle = .dark
-        }
+        // Use dark style for the map to dim the map grid
+        contentView.mapView.overrideUserInterfaceStyle = .dark
 
         addTileOverlay()
         loadGeoJSONData()
diff --git a/ios/MullvadVPN/CustomNavigationBar.swift b/ios/MullvadVPN/CustomNavigationBar.swift
index 5d56f92e5b..f326dd57da 100644
--- a/ios/MullvadVPN/CustomNavigationBar.swift
+++ b/ios/MullvadVPN/CustomNavigationBar.swift
@@ -18,28 +18,12 @@ class CustomNavigationBar: UINavigationBar {
         .foregroundColor: UIColor.NavigationBar.backButtonTitleColor,
     ]
 
-    private static let setupAppearanceForIOS12Once: Void = {
-        if #available(iOS 13, *) {
-            // no-op
-        } else {
-            let buttonAppearance = UIBarButtonItem
-                .appearance(whenContainedInInstancesOf: [CustomNavigationBar.self])
-            buttonAppearance.setBackButtonTitlePositionAdjustment(
-                CustomNavigationBar.backButtonTitlePositionOffset,
-                for: .default
-            )
-            buttonAppearance.setTitleTextAttributes(
-                CustomNavigationBar.titleTextAttributes,
-                for: .normal
-            )
-        }
-    }()
-
     private let customBackIndicatorImage = UIImage(named: "IconBack")?
-        .backport_withTintColor(
+        .withTintColor(
             UIColor.NavigationBar.backButtonIndicatorColor,
             renderingMode: .alwaysOriginal
         )
+
     private let customBackIndicatorTransitionMask = UIImage(named: "IconBackTransitionMask")
 
     // Returns the distance from the title label to the bottom of navigation bar
@@ -62,8 +46,6 @@ class CustomNavigationBar: UINavigationBar {
     }
 
     override init(frame: CGRect) {
-        Self.setupAppearanceForIOS12Once
-
         super.init(frame: frame)
 
         var margins = layoutMargins
@@ -83,21 +65,10 @@ class CustomNavigationBar: UINavigationBar {
         backgroundColor = UIColor.NavigationBar.backgroundColor
         isTranslucent = false
 
-        if #available(iOS 13, *) {
-            standardAppearance = makeNavigationBarAppearance()
-            scrollEdgeAppearance = makeNavigationBarAppearance()
-        } else {
-            backIndicatorImage = customBackIndicatorImage
-            backIndicatorTransitionMaskImage = customBackIndicatorTransitionMask
-            barTintColor = UIColor.NavigationBar.backgroundColor
-
-            titleTextAttributes = Self.titleTextAttributes
-            largeTitleTextAttributes = Self.titleTextAttributes
-            shadowImage = UIImage()
-        }
+        standardAppearance = makeNavigationBarAppearance()
+        scrollEdgeAppearance = makeNavigationBarAppearance()
     }
 
-    @available(iOS 13, *)
     private func makeNavigationBarAppearance() -> UINavigationBarAppearance {
         let navigationBarAppearance = UINavigationBarAppearance()
         navigationBarAppearance.configureWithTransparentBackground()
diff --git a/ios/MullvadVPN/CustomSplitViewController.swift b/ios/MullvadVPN/CustomSplitViewController.swift
index 752eae49e9..a73441bd46 100644
--- a/ios/MullvadVPN/CustomSplitViewController.swift
+++ b/ios/MullvadVPN/CustomSplitViewController.swift
@@ -32,24 +32,11 @@ class CustomSplitViewController: UISplitViewController, RootContainment {
     }
 
     override var childForStatusBarStyle: UIViewController? {
-        if #available(iOS 13, *) {
-            return super.childForStatusBarStyle
-        } else {
-            return viewControllers.last
-        }
+        super.childForStatusBarStyle
     }
 
     override var childForStatusBarHidden: UIViewController? {
-        if #available(iOS 13, *) {
-            return super.childForStatusBarHidden
-        } else {
-            return viewControllers.last
-        }
-    }
-
-    override var shouldAutomaticallyForwardAppearanceMethods: Bool {
-        // iOS 12: force split view controller to forward appearance events.
-        return true
+        super.childForStatusBarHidden
     }
 
     override func viewDidLayoutSubviews() {
diff --git a/ios/MullvadVPN/CustomSwitch.swift b/ios/MullvadVPN/CustomSwitch.swift
index fb3d5bc3eb..0172441489 100644
--- a/ios/MullvadVPN/CustomSwitch.swift
+++ b/ios/MullvadVPN/CustomSwitch.swift
@@ -29,10 +29,7 @@ class CustomSwitch: UISwitch {
 
         tintColor = .clear
         onTintColor = .clear
-
-        if #available(iOS 13.0, *) {
-            overrideUserInterfaceStyle = .light
-        }
+        overrideUserInterfaceStyle = .light
 
         updateThumbColor(isOn: isOn, animated: false)
 
@@ -63,13 +60,6 @@ class CustomSwitch: UISwitch {
     }
 
     @objc private func valueChanged(_ sender: Any) {
-        if #available(iOS 13, *) {
-            updateThumbColor(isOn: isOn, animated: true)
-        } else {
-            // Wait for animations to finish before changing the thumb color to prevent the jumpy behaviour.
-            CATransaction.setCompletionBlock {
-                self.updateThumbColor(isOn: self.isOn, animated: false)
-            }
-        }
+        updateThumbColor(isOn: isOn, animated: true)
     }
 }
diff --git a/ios/MullvadVPN/CustomSwitchContainer.swift b/ios/MullvadVPN/CustomSwitchContainer.swift
index 55316f2929..6fdf06a2a3 100644
--- a/ios/MullvadVPN/CustomSwitchContainer.swift
+++ b/ios/MullvadVPN/CustomSwitchContainer.swift
@@ -15,9 +15,7 @@ class CustomSwitchContainer: UIView {
         let shapeLayer = CAShapeLayer()
         shapeLayer.borderColor = UIColor.Switch.borderColor.cgColor
         shapeLayer.borderWidth = 2
-        if #available(iOS 13.0, *) {
-            shapeLayer.cornerCurve = .continuous
-        }
+        shapeLayer.cornerCurve = .continuous
         return shapeLayer
     }()
 
diff --git a/ios/MullvadVPN/DeviceRowView.swift b/ios/MullvadVPN/DeviceRowView.swift
index c35f2f78db..ac638f47ab 100644
--- a/ios/MullvadVPN/DeviceRowView.swift
+++ b/ios/MullvadVPN/DeviceRowView.swift
@@ -28,7 +28,7 @@ class DeviceRowView: UIView {
 
     let removeButton: UIButton = {
         let image = UIImage(named: "IconClose")?
-            .backport_withTintColor(
+            .withTintColor(
                 .white.withAlphaComponent(0.4),
                 renderingMode: .alwaysOriginal
             )
diff --git a/ios/MullvadVPN/HeaderBarView.swift b/ios/MullvadVPN/HeaderBarView.swift
index d27fb6ef6c..467bdb37da 100644
--- a/ios/MullvadVPN/HeaderBarView.swift
+++ b/ios/MullvadVPN/HeaderBarView.swift
@@ -11,7 +11,7 @@ import UIKit
 
 class HeaderBarView: UIView {
     private let brandNameImage = UIImage(named: "LogoText")?
-        .backport_withTintColor(UIColor.HeaderBar.brandNameColor, renderingMode: .alwaysOriginal)
+        .withTintColor(UIColor.HeaderBar.brandNameColor, renderingMode: .alwaysOriginal)
 
     let logoImageView: UIImageView = {
         let imageView = UIImageView(image: UIImage(named: "LogoIcon"))
@@ -30,9 +30,9 @@ class HeaderBarView: UIView {
 
     class func makeSettingsButton() -> HeaderBarButton {
         let settingsImage = UIImage(named: "IconSettings")?
-            .backport_withTintColor(UIColor.HeaderBar.buttonColor, renderingMode: .alwaysOriginal)
+            .withTintColor(UIColor.HeaderBar.buttonColor, renderingMode: .alwaysOriginal)
         let disabledSettingsImage = UIImage(named: "IconSettings")?
-            .backport_withTintColor(
+            .withTintColor(
                 UIColor.HeaderBar.disabledButtonColor,
                 renderingMode: .alwaysOriginal
             )
@@ -77,9 +77,7 @@ class HeaderBarView: UIView {
             right: UIMetrics.contentLayoutMargins.right
         )
 
-        if #available(iOS 13.0, *) {
-            accessibilityContainerType = .semanticGroup
-        }
+        accessibilityContainerType = .semanticGroup
 
         let imageSize = brandNameImage?.size ?? .zero
         let brandNameAspectRatio = imageSize.width / max(imageSize.height, 1)
diff --git a/ios/MullvadVPN/NotificationBannerView.swift b/ios/MullvadVPN/NotificationBannerView.swift
index bd74ee3dbf..325230d8a6 100644
--- a/ios/MullvadVPN/NotificationBannerView.swift
+++ b/ios/MullvadVPN/NotificationBannerView.swift
@@ -66,9 +66,7 @@ class NotificationBannerView: UIView {
         view.translatesAutoresizingMaskIntoConstraints = false
         view.backgroundColor = .dangerColor
         view.layer.cornerRadius = NotificationBannerView.indicatorViewSize.width * 0.5
-        if #available(iOS 13.0, *) {
-            view.layer.cornerCurve = .circular
-        }
+        view.layer.cornerCurve = .circular
         return view
     }()
 
diff --git a/ios/MullvadVPN/OutOfTimeViewController.swift b/ios/MullvadVPN/OutOfTimeViewController.swift
index b37a1b0eb5..6c7700a6f2 100644
--- a/ios/MullvadVPN/OutOfTimeViewController.swift
+++ b/ios/MullvadVPN/OutOfTimeViewController.swift
@@ -185,9 +185,8 @@ private extension OutOfTimeViewController {
         }
 
         view.isUserInteractionEnabled = isInteractionEnabled
-        if #available(iOS 13.0, *) {
-            isModalInPresentation = !isInteractionEnabled
-        }
+        isModalInPresentation = !isInteractionEnabled
+
         navigationItem.setHidesBackButton(!isInteractionEnabled, animated: animated)
     }
 
diff --git a/ios/MullvadVPN/PreferencesViewController.swift b/ios/MullvadVPN/PreferencesViewController.swift
index 152545b20d..4b148a5556 100644
--- a/ios/MullvadVPN/PreferencesViewController.swift
+++ b/ios/MullvadVPN/PreferencesViewController.swift
@@ -54,12 +54,8 @@ class PreferencesViewController: UITableViewController, PreferencesDataSourceDel
 
         navigationItem.setHidesBackButton(editing, animated: animated)
 
-        if #available(iOS 13.0, *) {
-            // Disable swipe to dismiss when editing
-            isModalInPresentation = editing
-        } else {
-            // no-op
-        }
+        // Disable swipe to dismiss when editing
+        isModalInPresentation = editing
 
         super.setEditing(editing, animated: animated)
     }
diff --git a/ios/MullvadVPN/ProblemReportReviewViewController.swift b/ios/MullvadVPN/ProblemReportReviewViewController.swift
index cbe2956746..9a4d69b5d8 100644
--- a/ios/MullvadVPN/ProblemReportReviewViewController.swift
+++ b/ios/MullvadVPN/ProblemReportReviewViewController.swift
@@ -43,7 +43,7 @@ class ProblemReportReviewViewController: UIViewController {
         textView.translatesAutoresizingMaskIntoConstraints = false
         textView.text = reportString
         textView.isEditable = false
-        textView.font = UIFont.backport_monospacedSystemFont(
+        textView.font = UIFont.monospacedSystemFont(
             ofSize: UIFont.systemFontSize,
             weight: .regular
         )
diff --git a/ios/MullvadVPN/ProblemReportViewController.swift b/ios/MullvadVPN/ProblemReportViewController.swift
index 1c20ddedc0..c2e4958004 100644
--- a/ios/MullvadVPN/ProblemReportViewController.swift
+++ b/ios/MullvadVPN/ProblemReportViewController.swift
@@ -218,9 +218,7 @@ class ProblemReportViewController: UIViewController, UITextFieldDelegate, Condit
         scrollViewKeyboardResponder = AutomaticKeyboardResponder(targetView: scrollView)
 
         // Make sure that the user can't easily dismiss the controller on iOS 13 and above
-        if #available(iOS 13.0, *) {
-            isModalInPresentation = true
-        }
+        isModalInPresentation = true
 
         // Set hugging & compression priorities so that description text view wants to grow
         emailTextField.setContentHuggingPriority(.defaultHigh, for: .vertical)
diff --git a/ios/MullvadVPN/REST/HTTP.swift b/ios/MullvadVPN/REST/HTTP.swift
index 85995c43ce..f6e8ff247d 100644
--- a/ios/MullvadVPN/REST/HTTP.swift
+++ b/ios/MullvadVPN/REST/HTTP.swift
@@ -48,18 +48,3 @@ enum HTTPHeader {
     static let etag = "ETag"
     static let ifNoneMatch = "If-None-Match"
 }
-
-extension HTTPURLResponse {
-    func value(forCaseInsensitiveHTTPHeaderField headerField: String) -> String? {
-        if #available(iOS 13.0, *) {
-            return self.value(forHTTPHeaderField: headerField)
-        } else {
-            for case let key as String in allHeaderFields.keys {
-                if case .orderedSame = key.caseInsensitiveCompare(headerField) {
-                    return self.allHeaderFields[key] as? String
-                }
-            }
-            return nil
-        }
-    }
-}
diff --git a/ios/MullvadVPN/REST/RESTAPIProxy.swift b/ios/MullvadVPN/REST/RESTAPIProxy.swift
index a53b95b8ac..9d94038f87 100644
--- a/ios/MullvadVPN/REST/RESTAPIProxy.swift
+++ b/ios/MullvadVPN/REST/RESTAPIProxy.swift
@@ -81,8 +81,7 @@ extension REST {
                                 ServerRelaysResponse.self,
                                 from: data
                             )
-                            let newEtag = response
-                                .value(forCaseInsensitiveHTTPHeaderField: HTTPHeader.etag)
+                            let newEtag = response.value(forHTTPHeaderField: HTTPHeader.etag)
 
                             return .newContent(newEtag, serverRelays)
                         }
diff --git a/ios/MullvadVPN/Result+UIBackgroundFetchResult.swift b/ios/MullvadVPN/Result+UIBackgroundFetchResult.swift
deleted file mode 100644
index e9bcf01c62..0000000000
--- a/ios/MullvadVPN/Result+UIBackgroundFetchResult.swift
+++ /dev/null
@@ -1,53 +0,0 @@
-//
-//  Result+UIBackgroundFetchResult.swift
-//  Result+UIBackgroundFetchResult
-//
-//  Created by pronebird on 07/09/2021.
-//  Copyright © 2021 Mullvad VPN AB. All rights reserved.
-//
-
-import UIKit
-
-extension OperationCompletion {
-    func backgroundFetchResult(_ hasNewData: (Success) -> Bool) -> UIBackgroundFetchResult {
-        switch self {
-        case let .success(value):
-            return hasNewData(value) ? .newData : .noData
-        case .cancelled:
-            return .noData
-        case .failure:
-            return .failed
-        }
-    }
-}
-
-extension UIBackgroundFetchResult: CustomStringConvertible {
-    public var description: String {
-        switch self {
-        case .newData:
-            return "new data"
-        case .noData:
-            return "no data"
-        case .failed:
-            return "failed"
-        @unknown default:
-            return "unknown (rawValue: \(rawValue)"
-        }
-    }
-
-    func combine(with others: [UIBackgroundFetchResult]) -> UIBackgroundFetchResult {
-        return others.reduce(self) { partialResult, other in
-            return partialResult.combine(with: other)
-        }
-    }
-
-    func combine(with other: UIBackgroundFetchResult) -> UIBackgroundFetchResult {
-        if self == .failed || other == .failed {
-            return .failed
-        } else if self == .newData || other == .newData {
-            return .newData
-        } else {
-            return .noData
-        }
-    }
-}
diff --git a/ios/MullvadVPN/SceneDelegate.swift b/ios/MullvadVPN/SceneDelegate.swift
index fc6951e0d5..a12513d6b8 100644
--- a/ios/MullvadVPN/SceneDelegate.swift
+++ b/ios/MullvadVPN/SceneDelegate.swift
@@ -30,12 +30,6 @@ class SceneDelegate: UIResponder {
     private var accountDataThrottling = AccountDataThrottling()
     private var outOfTimeTimer: Timer?
 
-    override init() {
-        super.init()
-
-        addSceneEvents()
-    }
-
     deinit {
         clearOutOfTimeTimer()
     }
@@ -106,33 +100,6 @@ class SceneDelegate: UIResponder {
         }
     }
 
-    private func addSceneEvents() {
-        if #available(iOS 13, *) {
-            // no-op
-        } else {
-            let notificationCenter = NotificationCenter.default
-
-            notificationCenter.addObserver(
-                self,
-                selector: #selector(sceneDidBecomeActive),
-                name: UIApplication.didBecomeActiveNotification,
-                object: nil
-            )
-            notificationCenter.addObserver(
-                self,
-                selector: #selector(sceneDidEnterBackground),
-                name: UIApplication.didEnterBackgroundNotification,
-                object: nil
-            )
-            notificationCenter.addObserver(
-                self,
-                selector: #selector(sceneWillResignActive),
-                name: UIApplication.willResignActiveNotification,
-                object: nil
-            )
-        }
-    }
-
     @objc private func sceneDidBecomeActive() {
         TunnelManager.shared.refreshTunnelStatus()
 
@@ -161,17 +128,14 @@ class SceneDelegate: UIResponder {
     }
 
     @objc private func sceneDidEnterBackground() {
-        if #available(iOS 13, *) {
-            let appDelegate = UIApplication.shared.delegate as? AppDelegate
+        let appDelegate = UIApplication.shared.delegate as? AppDelegate
 
-            appDelegate?.scheduleBackgroundTasks()
-        }
+        appDelegate?.scheduleBackgroundTasks()
     }
 }
 
 // MARK: - UIWindowSceneDelegate
 
-@available(iOS 13.0, *)
 extension SceneDelegate: UIWindowSceneDelegate {
     func scene(
         _ scene: UIScene,
@@ -366,10 +330,7 @@ extension SceneDelegate {
         modalRootContainer.preferredContentSize = CGSize(width: 480, height: 600)
         modalRootContainer.modalPresentationStyle = .formSheet
         modalRootContainer.presentationController?.delegate = self
-
-        if #available(iOS 13.0, *) {
-            modalRootContainer.isModalInPresentation = true
-        }
+        modalRootContainer.isModalInPresentation = true
 
         if modalRootContainer.presentingViewController == nil {
             rootContainer.present(modalRootContainer, animated: animated)
@@ -473,9 +434,7 @@ extension SceneDelegate {
 
         if UIDevice.current.userInterfaceIdiom == .pad {
             controller.modalPresentationStyle = .formSheet
-            if #available(iOS 13.0, *) {
-                controller.isModalInPresentation = true
-            }
+            controller.isModalInPresentation = true
         }
 
         controller.completionHandler = { controller in
@@ -1019,7 +978,6 @@ struct ClassicWindowFactory: WindowFactory {
     }
 }
 
-@available(iOS 13.0, *)
 struct SceneWindowFactory: WindowFactory {
     let windowScene: UIWindowScene
 
diff --git a/ios/MullvadVPN/SelectLocationCell.swift b/ios/MullvadVPN/SelectLocationCell.swift
index c2050560c7..7622433925 100644
--- a/ios/MullvadVPN/SelectLocationCell.swift
+++ b/ios/MullvadVPN/SelectLocationCell.swift
@@ -18,9 +18,7 @@ class SelectLocationCell: UITableViewCell {
     let statusIndicator: UIView = {
         let view = UIView()
         view.layer.cornerRadius = kRelayIndicatorSize * 0.5
-        if #available(iOS 13.0, *) {
-            view.layer.cornerCurve = .circular
-        }
+        view.layer.cornerCurve = .circular
         return view
     }()
 
diff --git a/ios/MullvadVPN/SelectLocationNavigationController.swift b/ios/MullvadVPN/SelectLocationNavigationController.swift
index b2e6605aec..a88c87c907 100644
--- a/ios/MullvadVPN/SelectLocationNavigationController.swift
+++ b/ios/MullvadVPN/SelectLocationNavigationController.swift
@@ -24,12 +24,6 @@ class SelectLocationNavigationController: UINavigationController {
         viewControllers = [contentController]
     }
 
-    override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
-        // This initializer exists to prevent crash on iOS 12.
-        // See: https://stackoverflow.com/a/38335090/351305
-        super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
-    }
-
     required init?(coder aDecoder: NSCoder) {
         fatalError("init(coder:) has not been implemented")
     }
diff --git a/ios/MullvadVPN/SettingsCell.swift b/ios/MullvadVPN/SettingsCell.swift
index 99fe94d4d7..b642549d5a 100644
--- a/ios/MullvadVPN/SettingsCell.swift
+++ b/ios/MullvadVPN/SettingsCell.swift
@@ -37,7 +37,7 @@ class SettingsCell: UITableViewCell {
         didSet {
             accessoryType = .none
 
-            let image = disclosureType.image?.backport_withTintColor(
+            let image = disclosureType.image?.withTintColor(
                 UIColor.Cell.disclosureIndicatorColor,
                 renderingMode: .alwaysOriginal
             )
@@ -115,16 +115,6 @@ class SettingsCell: UITableViewCell {
         setLayoutMargins()
     }
 
-    override func layoutSubviews() {
-        super.layoutSubviews()
-
-        if #available(iOS 13, *) {
-            // no-op
-        } else {
-            layoutSubviews_iOS12()
-        }
-    }
-
     private func setLayoutMargins() {
         // Set layout margins for standard acceessories added into the cell (reorder control, etc..)
         layoutMargins = UIMetrics.settingsCellLayoutMargins
@@ -132,40 +122,4 @@ class SettingsCell: UITableViewCell {
         // Set layout margins for cell content
         contentView.layoutMargins = UIMetrics.settingsCellLayoutMargins
     }
-
-    /// On iOS 12, standard edit and reorder controls do not respect layout margins.
-    /// This method does layout adjustments to fix that.
-    private func layoutSubviews_iOS12() {
-        guard isEditing || showsReorderControl else { return }
-
-        var leftOffset: CGFloat = 0
-        var rightOffset: CGFloat = 0
-
-        for subview in subviews {
-            // Detect the edit control and move it, so that the nested image view is aligned along the left edge of the
-            // layout margins.
-            if subview.description.starts(with: "<UITableViewCellEditControl"),
-               let imageView = subview.subviews.first
-            {
-                let imageOffset = imageView.frame.minX
-                var pos = subview.frame.origin
-                pos.x = layoutMargins.left - imageOffset
-                subview.frame.origin = pos
-                leftOffset = pos.x
-            }
-
-            // Detect the reorder control and move it, so that its right edge is aligned along the right edge of the
-            // layout margins.
-            if subview.description.starts(with: "<UITableViewCellReorderControl") {
-                var pos = subview.frame.origin
-                pos.x -= layoutMargins.right
-                subview.frame.origin = pos
-                rightOffset = layoutMargins.right
-            }
-        }
-
-        // Adjust the content view to account for the adjustments to the edit and reorder controls.
-        let contentInset = UIEdgeInsets(top: 0, left: leftOffset, bottom: 0, right: rightOffset)
-        contentView.frame = contentView.frame.inset(by: contentInset)
-    }
 }
diff --git a/ios/MullvadVPN/SettingsDNSTextCell.swift b/ios/MullvadVPN/SettingsDNSTextCell.swift
index dd1a97ccd3..83764fe9ee 100644
--- a/ios/MullvadVPN/SettingsDNSTextCell.swift
+++ b/ios/MullvadVPN/SettingsDNSTextCell.swift
@@ -56,9 +56,7 @@ class SettingsDNSTextCell: SettingsCell, UITextFieldDelegate {
         backgroundView?.backgroundColor = UIColor.TextField.backgroundColor
         contentView.addSubview(textField)
 
-        if #available(iOS 13.0, *) {
-            overrideUserInterfaceStyle = .light
-        }
+        overrideUserInterfaceStyle = .light
 
         NSLayoutConstraint.activate([
             textField.topAnchor.constraint(equalTo: contentView.topAnchor),
diff --git a/ios/MullvadVPN/SettingsNavigationController.swift b/ios/MullvadVPN/SettingsNavigationController.swift
index 0476ac23fa..58993fc6c4 100644
--- a/ios/MullvadVPN/SettingsNavigationController.swift
+++ b/ios/MullvadVPN/SettingsNavigationController.swift
@@ -56,12 +56,6 @@ class SettingsNavigationController: CustomNavigationController, SettingsViewCont
         pushViewController(makeViewController(for: .root), animated: false)
     }
 
-    override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: Bundle?) {
-        // This initializer exists to prevent crash on iOS 12.
-        // See: https://stackoverflow.com/a/38335090/351305
-        super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
-    }
-
     required init?(coder aDecoder: NSCoder) {
         super.init(coder: aDecoder)
     }
diff --git a/ios/MullvadVPN/SpinnerActivityIndicatorView.swift b/ios/MullvadVPN/SpinnerActivityIndicatorView.swift
index f09cd507e7..344c46e125 100644
--- a/ios/MullvadVPN/SpinnerActivityIndicatorView.swift
+++ b/ios/MullvadVPN/SpinnerActivityIndicatorView.swift
@@ -104,21 +104,11 @@ class SpinnerActivityIndicatorView: UIView {
     }
 
     private func registerSceneActivationObserver() {
-        let name: NSNotification.Name
-        var object: Any?
-
-        if #available(iOS 13, *) {
-            name = UIScene.willEnterForegroundNotification
-            object = window?.windowScene
-        } else {
-            name = UIApplication.willEnterForegroundNotification
-        }
-
         unregisterSceneActivationObserver()
 
         sceneActivationObserver = NotificationCenter.default.addObserver(
-            forName: name,
-            object: object,
+            forName: UIScene.willEnterForegroundNotification,
+            object: window?.windowScene,
             queue: .main, using: { [weak self] _ in
                 self?.restartAnimationIfNeeded()
             }
diff --git a/ios/MullvadVPN/TranslucentButtonBlurView.swift b/ios/MullvadVPN/TranslucentButtonBlurView.swift
index d10e606baf..496dd1e100 100644
--- a/ios/MullvadVPN/TranslucentButtonBlurView.swift
+++ b/ios/MullvadVPN/TranslucentButtonBlurView.swift
@@ -57,11 +57,7 @@ private extension AppButton.Style {
     var blurEffectStyle: UIBlurEffect.Style {
         switch self {
         case .translucentDangerSplitLeft, .translucentDangerSplitRight, .translucentDanger:
-            if #available(iOS 13.0, *) {
-                return .systemUltraThinMaterialDark
-            } else {
-                return .dark
-            }
+            return .systemUltraThinMaterialDark
         default:
             return .light
         }
diff --git a/ios/MullvadVPN/UIBarButtonItem+KeyboardNavigation.swift b/ios/MullvadVPN/UIBarButtonItem+KeyboardNavigation.swift
index f42e7a2f7b..ca17e2510a 100644
--- a/ios/MullvadVPN/UIBarButtonItem+KeyboardNavigation.swift
+++ b/ios/MullvadVPN/UIBarButtonItem+KeyboardNavigation.swift
@@ -31,7 +31,6 @@ extension UIBarButtonItem {
             }
         }
 
-        @available(iOS 13, *)
         fileprivate var systemImage: UIImage? {
             switch self {
             case .previous:
@@ -47,21 +46,13 @@ extension UIBarButtonItem {
         target: Any?,
         action: Selector?
     ) {
-        if #available(iOS 13, *) {
-            self.init(
-                image: keyboardNavigationItemType.systemImage,
-                style: .plain,
-                target: target,
-                action: action
-            )
-        } else {
-            self.init(
-                title: keyboardNavigationItemType.localizedTitle,
-                style: .plain,
-                target: target,
-                action: action
-            )
-        }
+        self.init(
+            image: keyboardNavigationItemType.systemImage,
+            style: .plain,
+            target: target,
+            action: action
+        )
+
         accessibilityLabel = keyboardNavigationItemType.localizedTitle
     }
 
@@ -82,13 +73,9 @@ extension UIBarButtonItem {
 
         configurationBlock(prevButton, nextButton)
 
-        if #available(iOS 13, *) {
-            let spacer = UIBarButtonItem(barButtonSystemItem: .fixedSpace, target: nil, action: nil)
-            spacer.width = 8
+        let spacer = UIBarButtonItem(barButtonSystemItem: .fixedSpace, target: nil, action: nil)
+        spacer.width = 8
 
-            return [prevButton, spacer, nextButton]
-        } else {
-            return [prevButton, nextButton]
-        }
+        return [prevButton, spacer, nextButton]
     }
 }
diff --git a/ios/MullvadVPN/UIFont+Monospaced.swift b/ios/MullvadVPN/UIFont+Monospaced.swift
deleted file mode 100644
index 0690070e01..0000000000
--- a/ios/MullvadVPN/UIFont+Monospaced.swift
+++ /dev/null
@@ -1,27 +0,0 @@
-//
-//  UIFont+Monospaced.swift
-//  MullvadVPN
-//
-//  Created by pronebird on 28/06/2022.
-//  Copyright © 2022 Mullvad VPN AB. All rights reserved.
-//
-
-import UIKit
-
-extension UIFont {
-    class func backport_monospacedSystemFont(ofSize size: CGFloat, weight: UIFont.Weight) -> UIFont
-    {
-        if #available(iOS 13, *) {
-            return UIFont.monospacedSystemFont(ofSize: size, weight: weight)
-        } else {
-            let fontDescriptor = UIFontDescriptor(fontAttributes: [
-                .name: "Menlo",
-                .traits: [
-                    UIFontDescriptor.TraitKey.weight: weight,
-                ],
-            ])
-
-            return UIFont(descriptor: fontDescriptor, size: size)
-        }
-    }
-}
diff --git a/ios/MullvadVPN/UIImage+TintColor.swift b/ios/MullvadVPN/UIImage+TintColor.swift
deleted file mode 100644
index 46fd6326bf..0000000000
--- a/ios/MullvadVPN/UIImage+TintColor.swift
+++ /dev/null
@@ -1,32 +0,0 @@
-//
-//  UIImage+TintColor.swift
-//  MullvadVPN
-//
-//  Created by pronebird on 17/11/2021.
-//  Copyright © 2021 Mullvad VPN AB. All rights reserved.
-//
-
-import UIKit
-
-extension UIImage {
-    func backport_withTintColor(_ tintColor: UIColor) -> UIImage {
-        return backport_withTintColor(tintColor, renderingMode: renderingMode)
-    }
-
-    func backport_withTintColor(_ tintColor: UIColor, renderingMode: RenderingMode) -> UIImage {
-        if #available(iOS 13, *) {
-            return withTintColor(tintColor, renderingMode: renderingMode)
-        }
-
-        let rect = CGRect(origin: .zero, size: size)
-        let renderer = UIGraphicsImageRenderer(size: size)
-
-        let renderedImage = renderer.image { context in
-            tintColor.setFill()
-            context.fill(rect)
-            draw(in: rect, blendMode: .destinationIn, alpha: 1)
-        }
-
-        return renderedImage.withRenderingMode(renderingMode)
-    }
-}