• Add PaymentMethodType enum
• Add PaymentMethodNonce#getType() method
• Add wallet enabled metadata tag to AndroidManifest.xml in google-pay module
• Bump browser-switch to 2.0.0-beta3
• Callback BraintreeException on user cancellation of payment flows
• Breaking Changes
  • Rename DownForMaintenanceException to ServiceUnavailableException
  • Remove GoogleApiClientException
  • Make BraintreeWalletConstants package-private
  • Make PaymentMethodNonceFactory package-private
  • Make GooglePayException constructor package-private
  • Make VisaCheckoutAccount package-private
  • Make VenmoAccount package-private
  • Return an IllegalArgumentException instead of GoogleApiClientException to GooglePayIsReadyToPayCallback#onResult() when activity is null
  • Refactor GetPaymentMethodNoncesCallback to have a single onResult() method instead of success() and failure()
  • Remove Context parameter from PaymentMethodClient#getPaymentMethodNonces
  • Rename PaymentMethodNonce#getNonce() to getString()
  • Move VenmoAccountNonce to Venmo module
  • Move AuthenticationInsight to Card module
  • Move BinData to Card module
  • Move Card to Card module
  • Move CardNonce to Card module
  • Move ThreeDSecureInfo to Card module
  • Move PayPalAccountNonce to PayPal module
  • Move PayPalCreditFinancing to PayPal module
  • Move PayPalCreditFinancingAmount to PayPal module
  • Move UnionPayCapabilities to UnionPay module
  • Move UnionPayCard to UnionPay module
  • Move VisaCheckoutAddress to VisaCheckout module
  • Move VisaCheckoutNonce to VisaCheckout module
  • Move VisaCheckoutUserData to VisaCheckout module
  • Remove PaymentMethodNonce#getTypeLabel() method
  • Remove PaymentMethodNoncesCallback
  • Remove PaymentMethodNonce#getDescription() method
  • BraintreeClient constructor no longer throws InvalidArgumentException
  • Make protected static member variables OPTIONS_KEY, OPERATION_NAME_KEY on PaymentMethod package-private
  • Make PaymentMethod constructor package-private
  • Rename setValidate to setShouldValidate and move it from PaymentMethod base class to Card subclass
  • Make buildJSON() package-private for PaymentMethod base class and all subclasses
  • Remove buildGraphQL() method from PaymentMethod base class and all subclasses
  • Make PaymentMethod Parcelable constructor package-private
  • Make PaymentMethod#writeToParcel() method package-private
  • Make PaymentMethod#getDefaultSource() method package-private
  • Make PaymentMethod#getDefaultIntegration() method package-private
  • Make getApiPath() method package-private in PaymentMethod base class and subclasses
  • Remove getResponsePaymentMethodType() method from PaymentMethod base class and subclasses
  • Make BaseCard class package-private