Refactoring

Sources/CardPayments/CardClient.swift

@@ -43,7 +43,7 @@ public class CardClient: NSObject {
     /// If `didAttempt3DSecureVerification` is `true`, check verification status with `/v3/vault/setup-token/{id}` in your server.
     /// - Parameters:
     ///   - vaultRequest: The request containing setupTokenID and card
-    @available(*, deprecated, message: "This method is deprecated and will be removed in a future release. Use the new completion handler-based approach instead.")
+    @available(*, deprecated, message: "This method is deprecated and will be removed in version 2.0.0. Please use the new completion handler-based approach instead. For more details, visit the v2 migration guide: https://github.com/paypal/paypal-ios/")
     public func vault(_ vaultRequest: CardVaultRequest) {
         analyticsService = AnalyticsService(coreConfig: config, setupToken: vaultRequest.setupTokenID)
         analyticsService?.sendEvent("card-payments:vault-wo-purchase:started")