diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index 0c0536cf..19e75f5e 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-12]
+        os: [macos-13]
         podspec: [GoogleSignIn.podspec, GoogleSignInSwiftSupport.podspec]
         flag: [
           "",
@@ -45,7 +45,7 @@ jobs:
           - sdk: 'macosx'
             destination: '"platform=OS X,arch=x86_64"'
           - sdk: 'iphonesimulator'
-            destination: '"platform=iOS Simulator,name=iPhone 14"'
+            destination: '"platform=iOS Simulator,name=iPhone 15"'
     steps:
     - uses: actions/checkout@v3
     - name: Build unit test target
diff --git a/GoogleSignIn/Sources/GIDVerifyAccountDetail/Implementations/GIDVerifyAccountDetail.m b/GoogleSignIn/Sources/GIDVerifyAccountDetail/Implementations/GIDVerifyAccountDetail.m
index 51bacc69..7ff865f4 100644
--- a/GoogleSignIn/Sources/GIDVerifyAccountDetail/Implementations/GIDVerifyAccountDetail.m
+++ b/GoogleSignIn/Sources/GIDVerifyAccountDetail/Implementations/GIDVerifyAccountDetail.m
@@ -149,8 +149,6 @@ - (void)verifyAccountDetailsInteractivelyWithOptions:(GIDSignInInternalOptions *
     return;
   }
 
-  [self assertValidCurrentUser];
-
   // Explicitly throw exception for missing client ID here. This must come before
   // scheme check because schemes rely on reverse client IDs.
   [self assertValidParameters:options];
@@ -231,15 +229,6 @@ - (void)processAuthorizationResponse:(OIDAuthorizationResponse *)authorizationRe
 
 #pragma mark - Helpers
 
-// Assert that a current user exists.
-- (void)assertValidCurrentUser {
-  if (!GIDSignIn.sharedInstance.currentUser) {
-    // NOLINTNEXTLINE(google-objc-avoid-throwing-exception)
-    [NSException raise:NSInvalidArgumentException
-                format:@"|currentUser| must be set to verify."];
-  }
-}
-
 // Asserts the parameters being valid.
 - (void)assertValidParameters:(GIDSignInInternalOptions *)options {
   if (![options.configuration.clientID length]) {
diff --git a/Package.swift b/Package.swift
index 95ccaaf2..4561e912 100644
--- a/Package.swift
+++ b/Package.swift
@@ -71,6 +71,7 @@ let package = Package(
       name: "GoogleSignIn",
       dependencies: [
         .product(name: "AppAuth", package: "AppAuth"),
+        .product(name: "AppAuthCore", package: "AppAuth"),
         .product(name: "AppCheckCore", package: "AppCheck"),
         .product(name: "GTMAppAuth", package: "GTMAppAuth"),
         .product(name: "GTMSessionFetcherCore", package: "GTMSessionFetcher"),
diff --git a/Samples/Swift/DaysUntilBirthday/DaysUntilBirthdayUITests(iOS)/DaysUntilBirthdayUITests_iOS.swift b/Samples/Swift/DaysUntilBirthday/DaysUntilBirthdayUITests(iOS)/DaysUntilBirthdayUITests_iOS.swift
index 7d05239f..7ec038f7 100644
--- a/Samples/Swift/DaysUntilBirthday/DaysUntilBirthdayUITests(iOS)/DaysUntilBirthdayUITests_iOS.swift
+++ b/Samples/Swift/DaysUntilBirthday/DaysUntilBirthdayUITests(iOS)/DaysUntilBirthdayUITests_iOS.swift
@@ -24,16 +24,33 @@ class DaysUntilBirthdayUITests_iOS: XCTestCase {
   private let signInDisclaimerHeaderText =
     "Sign in to Days Until Birthday"
   private let additionalAccessHeaderText = "Days Until Birthday wants additional access to your Google Account"
+  private let infoSharingHeaderText = "Share some info with Days Until Birthday"
   private let appTrustWarningText = "Make sure you trust Days Until Birthday"
   private let chooseAnAccountHeaderText = "Choose an account"
   private let notNowText = "Not Now"
-  private let timeout: TimeInterval = 5
+  private let timeout: TimeInterval = 30
 
   private let sampleApp = XCUIApplication()
   private let springboardApp = XCUIApplication(
     bundleIdentifier: "com.apple.springboard"
   )
 
+  func testSignInFetchVerificationSignalAndDisconnect() {
+    sampleApp.launch()
+    XCTAssertTrue(signIn())
+    XCTAssertTrue(navigateToVerifyMyAge())
+
+    XCTAssertTrue(navigateBackToUserProfileView())
+
+    sampleApp.navigationBars.buttons["Disconnect"].tap()
+
+    guard sampleApp
+            .buttons["GoogleSignInButton"]
+            .waitForExistence(timeout: timeout) else {
+      return XCTFail("Disconnecting should return user to sign in view")
+    }
+  }
+
   func testSignInNavigateToDaysUntilBirthdayAndDisconnect() {
     sampleApp.launch()
 
@@ -195,6 +212,75 @@ extension DaysUntilBirthdayUITests_iOS {
     return true
   }
 
+  func navigateToVerifyMyAge() -> Bool {
+    guard sampleApp.buttons["Verify My Age"]
+            .waitForExistence(timeout: timeout) else {
+      XCTFail("Failed to find button navigating to verify my age view")
+      return false
+    }
+    sampleApp.buttons["Verify My Age"].tap()
+
+    if springboardApp
+        .staticTexts[signInStaticText]
+        .waitForExistence(timeout: timeout) {
+      guard springboardApp
+              .buttons["Continue"]
+              .waitForExistence(timeout: timeout) else {
+        XCTFail("Failed to find 'Continue' button")
+        return false
+      }
+      springboardApp.buttons["Continue"].tap()
+
+      if sampleApp
+        .staticTexts[chooseAnAccountHeaderText]
+        .waitForExistence(timeout: timeout) {
+        guard findAndTapExistingSignedInEmail() else {
+          XCTFail("Failed to find signed-in account")
+          return false
+        }
+      }
+
+      handleInfoSharingRequestIfNeeded()
+    }
+
+    guard sampleApp.staticTexts["Verified Account!"]
+            .waitForExistence(timeout: 30) else {
+      XCTFail("Failed to show age verification view")
+      return false
+    }
+
+    let currentAccessTokenIdentifier = sampleApp.staticTexts["Access Token:"]
+
+    guard currentAccessTokenIdentifier.waitForExistence(timeout: timeout) else {
+        XCTFail("Access Token element did not appear")
+        return false
+    }
+
+    guard sampleApp.buttons["Fetch Age Verification Signal"]
+            .waitForExistence(timeout: timeout) else {
+      XCTFail("Failed to find button to refresh access token")
+      return false
+    }
+    sampleApp.buttons["Fetch Age Verification Signal"].tap()
+
+    guard sampleApp.staticTexts["User is verified over 18!"]
+            .waitForExistence(timeout: 30) else {
+      XCTFail("Failed to show age verification signal view")
+      return false
+    }
+
+    guard sampleApp
+            .navigationBars
+            .buttons["Close"]
+            .waitForExistence(timeout: timeout) else {
+      XCTFail("Failed to show close button back to age signal view")
+      return false
+    }
+    sampleApp.navigationBars.buttons["Close"].tap()
+
+    return true
+  }
+
   /// Navigates to the days until birthday view from the user profile view.
   /// - returns: `true` if the navigation was performed successfully.
   /// - note: This method will attempt to find a pop up asking for permission to
@@ -262,6 +348,17 @@ extension DaysUntilBirthdayUITests_iOS {
     return true
   }
 
+  func handleInfoSharingRequestIfNeeded(){
+    let currentlyShowingInfoSharingRequest = sampleApp.staticTexts[infoSharingHeaderText]
+      .waitForExistence(timeout: timeout) &&
+    sampleApp.buttons["Agree"]
+      .waitForExistence(timeout: timeout)
+
+    if currentlyShowingInfoSharingRequest {
+      sampleApp.buttons["Agree"].tap()
+    }
+  }
+
   /// Proceeds through the view with header "Days Until Birthday wants additional access to your Google Account" if needed.
   func handleAccessRequestIfNeeded() {
     let currentlyShowingAdditionalAccessRequest = sampleApp.staticTexts[additionalAccessHeaderText]