diff --git a/CHANGELOG.md b/CHANGELOG.md
index d3ab0f1..5c0ee97 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+## [2.0.0]
+
+### Changed
+- Refactored DirectDebit to new REST API.
+
+### Removed
+- Deprecated endpoints and dependencies, see UPGRADING.md for details.
+
 ## [1.2.0]
 
 ### Added
diff --git a/README.md b/README.md
index f094530..0039acb 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ const payNL = createPayNLClient({ apiToken: '***********************************
 
 ## Orders
 
-Orders use the new Transaction Gateway Unit API. View the [examples](https://github.com/paynl/nodejs-sdk/tree/master/src/examples/connect) or [online documentation](https://developer.pay.nl/reference/api_create_order-1) for a complete overview of what is possible.
+Orders use the new Transaction Gateway Unit API. View the [examples](https://github.com/paynl/nodejs-sdk/tree/master/examples) or [online documentation](https://developer.pay.nl/reference/api_create_order-1) for a complete overview of what is possible.
 
 ### Creating an order
 
@@ -66,186 +66,34 @@ const order = await payNL.Orders.get(orderId);
 const orderStatus = await payNL.Orders.status(orderId);
 ```
 
-## Basic transactions
-
-> [!IMPORTANT]
-> Orders created with the transaction API will not be available in the new transaction gateway unit.
-> In the upcoming v2.0 release the `payNL.Transaction` methods will no longer be available. The transaction status endpoint will be kept for backwards compatibility.
-> We recommend that you start using orders instead of transactions.
-
-### Getting the available payment methods
-This example shows how to fetch a list of the available payment methods.
-The method ``` payNL.Paymentmethods.getList() ``` returns an observable array.
-For more information about observables see [reactivex.io](http://reactivex.io/rxjs/)
-
-```typescript
-payNL.Paymentmethods.getList().forEach(
-    function(paymentmethod) {
-        console.log(paymentmethod.id + ' ' + paymentmethod.visibleName);
-    }
-)
-.catch(error => {
-    console.error(error)
-});
-```
-### Starting a transaction
-This example shows the minimum required attributes to start a transaction.
-The full version with all supported options is located [here](https://github.com/paynl/nodejs-sdk/tree/master/src/samples/transaction/start.ts)
-
-```typescript
-payNL.Transaction.start({
-    //the amount in euro
-    amount: 19.95,
-    
-    //we redirect the user back to this url after the payment
-    returnUrl: "https://my-return-url.com/return",
-    
-    //the ip address of the user
-    ipAddress: '10.20.30.40' 
-})
-.subscribe(
-  function (result) {
-    //redirect the user to this url to complete the payment
-    console.log(result.paymentURL); 
-    
-    // the transactionId, use this to fetch the transaction later
-    console.log(result.transactionId);
-  }, 
-  function (error) {
-    console.error(error); 
-  }
-);
-```
-
-### Fetching a transaction
-The following example shows how to fetch a transaction.
-```typescript
-payNL.Transaction.get('123456789X12345e').subscribe(
-  function(result){
-    // some examples of what you can do with the result
-    if (result.isPaid()) {
-        console.log('The transaction is paid');
-        // refund a part of the transaction
-        result.refund({
-            amount: 0.5,
-            description: '50 cents refund'
-        });
-    }
-    if (result.isCanceled()) {
-        console.log('Tranasaction is canceled, restock the items');
-    }
-    if (result.isBeingVerified()) {
-        console.log('Transaction needs to be verified first, possible fraud');
-        result.decline(); //decline the transaction
-        result.approve(); //approve the transaction 
-    }
-  },
-  function(error){
-    console.error(error);
-  }
-);
-```
-
-## Instore payments (pin)
-
-### Fetching available terminals
-
-Before you can send a transaction, you need to know which terminal to send the transaction to.
-
-```typescript
-payNL.Instore.getTerminals()
-    .forEach(function (terminal) {
-    console.log(terminal.id + ' ' + terminal.name);
-})
-    .catch(function (error) { return console.error(error); });
-```
-
-### Starting an instore transaction
-An instore transaction is started in the same way as a normal transaction with the addition of a terminalId.
-After the transaction has been started, you can use the terminalStatusUrl to get the status of the transaction.
-
-```typescript
-// Start transaction and send to the terminal
-payNL.Transaction.start({
-    amount: 0.01,
-    paymentMethodId: 1927,
-    //returnUrl and ipAddres are not used for instore payments, but are mandatory
-    returnUrl: "not_applicable",
-    ipAddress: "10.20.30.40",
-    terminalId: "TH-####-####"
-}).subscribe(
-    //when the transaction is started, get the status
-    function (transaction) { 
-        getStatus(transaction.terminalStatusUrl); 
-    }
-);
-function getStatus(statusUrl) {
-    payNL.Instore.getTransactionStatus(statusUrl).subscribe(function (status) {
-        console.log("isFinal: ", status.isFinal);
-        console.log("status: ", status.status);
-        console.log("txId: ", status.txId);
-        console.log("terminal: ", status.terminal);
-        console.log("ssai: ", status.ssai);
-        console.log("isCanceled: ", status.isCanceled);
-        console.log("isApproved: ", status.isApproved);
-        console.log("isError: ", status.isError);
-        console.log("needsSignature: ", status.needsSignature);
-        console.log("amount: ", status.amount);
-        console.log("approvalId: ", status.approvalId);
-        console.log("cardBrandIdentifier: ", status.cardBrandIdentifier);
-        console.log("cardBrandLabelName: ", status.cardBrandLabelName);
-        console.log("incidentCode: ", status.incidentCode);
-        console.log("incidentCodeText: ", status.incidentCodeText);
-        console.log("receipt: ", status.receipt);
-    }, function (error) { 
-        console.error(error); 
-    }, function () {
-        console.log("Completed");
-    });
-}
-```
-
 ## Direct Debit (Incasso)
 
 ### Creating a new Direct Debit
 
-This SDK can also add direct debit transactions.
-Only amount, bankaccountHolder and bankaccountNumber are mandatory, the rest of the arguments are optional.
+This SDK can also add direct debit transactions. In order to do so, you need to create a mandate first.
 
 ```typescript
-payNL.DirectDebit.add({
-    amount: 0.01,
-    bankaccountHolder: "N Name",
-    bankaccountNumber: "NL00RABO0000012345678",
-    // optional
-    bankaccountBic: "RABONL2U",
-    processDate: new Date("2018-03-01"),
-    description: "Uw omschrijving",
-    ipAddress: "192.168.10.1",
-    email: "a@a.nl",
-    promotorId: 1234,
-    tool: "tool",
-    info: "info",
-    object: "object",
-    extra1: "extra1",
-    extra2: "extra2",
-    extra3: "extra3",
-    currency: "EUR",
-    exchangeUrl: "https://your-exchange.url",
-}).subscribe(function (mandateId) {
-    console.log("The mandateId is: " + mandateId);
-}, function (error) {
-    console.error("Error " + error);
+const mandate = await payNL.DirectDebit.createMandate({
+    amount: { value: 1000, currency: 'EUR' },
+    description: 'example description',
+    type: 'FLEXIBLE',
 });
 
+const directDebit = await payNL.DirectDebit.add({
+    mandateId: mandate.code,
+    processDate: new Date('2025-10-10'),
+    description: 'Test direct debit',
+    amount: {
+        value: 1000,
+        currency: 'EUR',
+    },
+});
 ```
 
 ### Fetching a Direct Debit transaction
 
-Fetch a DirectDebit transaction to fetch the status.
+Fetch a DirectDebit transaction to check the status.
 
 ```typescript
-payNL.DirectDebit.get('IO-####-####-####').subscribe(function (transaction) {
-    console.log(transaction);
-});
+const directDebit = await payNL.DirectDebit.get('IO-####-####-####');
 ```
diff --git a/UPGRADING.md b/UPGRADING.md
index c609252..f916f1a 100644
--- a/UPGRADING.md
+++ b/UPGRADING.md
@@ -2,6 +2,26 @@
 
 All notable (breaking) changes to this project will be documented in this file.
 
+## From 1.2.0 to 2.0.0
+
+As of version 2.0.0, the SDK can no longer create or update transactions using the old REST API.
+All orders need to be created using the new [order API](https://developer.pay.nl/reference/api_create_order-1).
+The `payNL.Orders.status()` method still supports fetching the status of a transaction.
+
+To upgrade, all calls to the following methods need to be replaced with new Order API calls or are no longer available:
+* `payNL.Transaction.start()`
+* `payNL.Transaction.getStatus()`
+* `payNL.Transaction.approve()`
+* `payNL.Transaction.decline()`
+* `payNL.Transaction.refund()`
+* `payNL.Transaction.get()`
+* `payNL.Instore.getTerminals()`
+
+The following have different in- and outputs:
+* `payNL.PaymentMethods.all()` (previously called `payNL.Paymentmethods.getList()`)
+* `payNL.DirectDebit.add()`
+* `payNL.DirectDebit.get()` 
+
 ## From 1.1.4 to 1.2.0
 
 Pay.nl is moving from transaction operations to a Transaction Gateway Unit.
diff --git a/examples/directDebit.ts b/examples/directDebit.ts
index 2b2fa7b..ae6ff09 100644
--- a/examples/directDebit.ts
+++ b/examples/directDebit.ts
@@ -8,7 +8,7 @@ const payNL = createPayNLClient({
 
 const mandate = await payNL.DirectDebit.createMandate({
     amount: { value: 1000, currency: 'EUR' },
-    description: 'Jeroens test',
+    description: 'example description',
     type: 'FLEXIBLE',
 });
 
diff --git a/package-lock.json b/package-lock.json
index 9f005b7..c721148 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "paynl-sdk",
-  "version": "1.2.0",
+  "version": "2.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "paynl-sdk",
-      "version": "1.2.0",
+      "version": "2.0.0",
       "license": "MIT",
       "devDependencies": {
         "@eslint/js": "^9.33.0",
diff --git a/package.json b/package.json
index 69e3b01..c644fab 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "paynl-sdk",
-  "version": "1.2.0",
+  "version": "2.0.0",
   "repository": {
     "type": "git",
     "url": "https://github.com/paynl/nodejs-sdk.git"