diff --git a/adyen.go b/adyen.go
index 86c0eef..f102b73 100644
--- a/adyen.go
+++ b/adyen.go
@@ -17,10 +17,10 @@ const (
 	DefaultClientTimeout = time.Second * 10
 
 	// PaymentAPIVersion - API version of current payment API
-	PaymentAPIVersion = "v30"
+	PaymentAPIVersion = "v52"
 
 	// RecurringAPIVersion - API version of current recurring API
-	RecurringAPIVersion = "v25"
+	RecurringAPIVersion = "v49"
 
 	// PaymentService is used to identify the standard payment workflow.
 	PaymentService = "Payment"
@@ -29,7 +29,7 @@ const (
 	RecurringService = "Recurring"
 
 	// CheckoutAPIVersion - API version of current checkout API
-	CheckoutAPIVersion = "v32"
+	CheckoutAPIVersion = "v52"
 )
 
 // Adyen - base structure with configuration options
diff --git a/avs.go b/avs.go
new file mode 100644
index 0000000..cf6e802
--- /dev/null
+++ b/avs.go
@@ -0,0 +1,37 @@
+package adyen
+
+// AVSResponse is a type definition for all possible responses from Adyen's AVS system
+//
+// https://docs.adyen.com/risk-management/avs-checks
+type AVSResponse string
+
+// AVSResponse hard-coded for easy comparison checking later
+const (
+	AVSResponse0  AVSResponse = "0 Unknown"
+	AVSResponse1  AVSResponse = "1 Address matches, postal code doesn't"
+	AVSResponse2  AVSResponse = "2 Neither postal code nor address match"
+	AVSResponse3  AVSResponse = "3 AVS unavailable"
+	AVSResponse4  AVSResponse = "4 AVS not supported for this card type"
+	AVSResponse5  AVSResponse = "5 No AVS data provided"
+	AVSResponse6  AVSResponse = "6 Postal code matches, but the address does not match"
+	AVSResponse7  AVSResponse = "7 Both postal code and address match"
+	AVSResponse8  AVSResponse = "8 Address not checked, postal code unknown"
+	AVSResponse9  AVSResponse = "9 Address matches, postal code unknown"
+	AVSResponse10 AVSResponse = "10 Address doesn't match, postal code unknown"
+	AVSResponse11 AVSResponse = "11 Postal code not checked, address unknown"
+	AVSResponse12 AVSResponse = "12 Address matches, postal code not checked"
+	AVSResponse13 AVSResponse = "13 Address doesn't match, postal code not checked"
+	AVSResponse14 AVSResponse = "14 Postal code matches, address unknown"
+	AVSResponse15 AVSResponse = "15 Postal code matches, address not checked"
+	AVSResponse16 AVSResponse = "16 Postal code doesn't match, address unknown"
+	AVSResponse17 AVSResponse = "17 Postal code doesn't match, address not checked."
+	AVSResponse18 AVSResponse = "18 Neither postal code nor address were checked"
+	AVSResponse19 AVSResponse = "19 Name and postal code matches"
+	AVSResponse20 AVSResponse = "20 Name, address and postal code matches"
+	AVSResponse21 AVSResponse = "21 Name and address matches"
+	AVSResponse22 AVSResponse = "22 Name matches"
+	AVSResponse23 AVSResponse = "23 Postal code matches, name doesn't match"
+	AVSResponse24 AVSResponse = "24 Both postal code and address matches, name doesn't match"
+	AVSResponse25 AVSResponse = "25 Address matches, name doesn't match"
+	AVSResponse26 AVSResponse = "26 Neither postal code, address nor name matches"
+)
diff --git a/cvv.go b/cvv.go
new file mode 100644
index 0000000..bd487f1
--- /dev/null
+++ b/cvv.go
@@ -0,0 +1,16 @@
+package adyen
+
+// CVCResult represents the Adyen translation of CVC codes from issuer
+// https://docs.adyen.com/development-resources/test-cards/cvc-cvv-result-testing
+type CVCResult string
+
+// Constants represented by numerical code they are assigned
+const (
+	CVCResult0 CVCResult = "0 Unknown"
+	CVCResult1 CVCResult = "1 Matches"
+	CVCResult2 CVCResult = "2 Doesn't Match"
+	CVCResult3 CVCResult = "3 Not Checked"
+	CVCResult4 CVCResult = "4 No CVC/CVV provided, but was required"
+	CVCResult5 CVCResult = "5 Issuer not certified for CVC/CVV"
+	CVCResult6 CVCResult = "6 No CVC/CVV provided"
+)
diff --git a/notification.go b/notification.go
index 49506c8..b1371b5 100644
--- a/notification.go
+++ b/notification.go
@@ -30,6 +30,13 @@ type NotificationRequestItemData struct {
 		AuthorisedAmountValue    string `json:"authorisedAmountValue,omitempty"`
 		AuthorisedAmountCurrency string `json:"authorisedAmountCurrency,omitempty"`
 		HmacSignature            string `json:"hmacSignature,omitempty"`
+		NOFReasonCode            string `json:"nofReasonCode,omitempty"`
+		NOFSchemeCode            string `json:"nofSchemeCode,omitempty"`
+		RFIReasonCode            string `json:"rfiReasonCode,omitempty"`
+		RFISchemeCode            string `json:"rfiSchemeCode,omitempty"`
+		ChargebackReasonCode     string `json:"chargebackReasonCode,omitempty"`
+		ChargebackSchemeCode     string `json:"chargebackSchemeCode,omitempty"`
+		ARN                      string `json:"arn,omitempty"`
 	} `json:"additionalData,omitempty"`
 	Amount              Amount     `json:"amount"`
 	PspReference        string     `json:"pspReference"`
diff --git a/payment.go b/payment.go
index 769d92d..87b6702 100644
--- a/payment.go
+++ b/payment.go
@@ -93,6 +93,10 @@ type AdditionalData struct {
 	FundingSource                     string      `json:"fundingSource,omitempty"`
 	CustomRoutingFlag                 string      `json:"customRoutingFlag,omitempty"`
 	RequestedTestAcquirerResponseCode int         `json:"RequestedTestAcquirerResponseCode,omitempty"` //Used for trigger error from adyen
+	CVCResult                         CVCResult   `json:"cvcResult,omitempty"`
+	CVCResultRaw                      string      `json:"cvcResultRaw,omitempty"`
+	AVSResult                         AVSResponse `json:"avsResult,omitempty"`
+	AVSResultRaw                      string      `json:"avsResultRaw,omitempty"`
 }
 
 // BrowserInfo hold information on the user browser