diff --git a/CHANGELOG.md b/CHANGELOG.md
index 347d4218..a0f2ce74 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,22 @@
 <!-- This file is generated, please add to it using `knope document-change` in the client-library-templates repo -->
 # Changelog
 
+## 10.0.0 (2026-09-14)
+
+### Breaking Changes
+
+#### Add typed nullable references for billing request template fields
+
+`mandate_request_verify`, `mandate_currency`, and `payment_currency` on
+`billing_request_template` are now generated as typed nullable fields instead
+of untyped objects. For example, `mandate_request_verify` is now typed as
+`MandateRequestVerify` (or the language equivalent) rather than a generic
+object type.
+
+This is a breaking change — code that accesses these fields using untyped
+patterns (e.g. casting from `Object` in Java) will need to be updated to
+use the new typed accessors.
+
 ## 9.1.0 (2026-09-11)
 
 ### Features
diff --git a/package-lock.json b/package-lock.json
index fa5c2dff..7d674b8c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "gocardless-nodejs",
-  "version": "9.1.0",
+  "version": "10.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "gocardless-nodejs",
-      "version": "9.1.0",
+      "version": "10.0.0",
       "license": "MIT",
       "dependencies": {
         "got": "^11.8.6",
@@ -1808,9 +1808,9 @@
       }
     },
     "node_modules/@tybys/wasm-util": {
-      "version": "0.10.3",
-      "resolved": "https://registry.npmjs.org/@tybys/wasm-util/-/wasm-util-0.10.3.tgz",
-      "integrity": "sha512-F3fo1MYrRJYL3zER0OUOmkutjr1Vp23m7OsSgp7nq4SP6OqX6C/56XFIPAl5bt3zaBRjmW7SGz3u/6LwFpYcOg==",
+      "version": "0.10.4",
+      "resolved": "https://registry.npmjs.org/@tybys/wasm-util/-/wasm-util-0.10.4.tgz",
+      "integrity": "sha512-W3c4gRigFS0T/Ma4qIYF3GDAc5AQdHb1yL5znJT1Zv1YaD9Kitx656wBjvr19qbiosmZT8lWDM5BEMynUqX65A==",
       "dev": true,
       "license": "MIT",
       "optional": true,
@@ -2773,9 +2773,9 @@
       }
     },
     "node_modules/baseline-browser-mapping": {
-      "version": "2.11.22",
-      "resolved": "https://registry.npmjs.org/baseline-browser-mapping/-/baseline-browser-mapping-2.11.22.tgz",
-      "integrity": "sha512-pWc4w51fBFd7mav43/zKRC+RI6f4yfzQoVlfvE8dECePyfkn1bzLp01Fj0QACcyCZyFhiEMyD2qScfKRWgWibA==",
+      "version": "2.11.23",
+      "resolved": "https://registry.npmjs.org/baseline-browser-mapping/-/baseline-browser-mapping-2.11.23.tgz",
+      "integrity": "sha512-le521dGVfxM7yRX0EikCoSz+rOK+hHzdDt/E7mG1jOJB/6WAAUuwVroLwaB7ApaUsz5Q0kFlDXLSA9MheUIfRQ==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
diff --git a/package.json b/package.json
index 7b209128..94bfd0fd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gocardless-nodejs",
-  "version": "9.1.0",
+  "version": "10.0.0",
   "description": "Node.js client for the GoCardless API - a powerful, simple solution for the collection of recurring bank-to-bank payments",
   "author": "GoCardless Ltd <client-libraries@gocardless.com>",
   "repository": {
diff --git a/src/constants.ts b/src/constants.ts
index 70998c0f..8df59712 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -3,7 +3,7 @@ enum Environments {
   Sandbox = 'SANDBOX',
 }
 
-const CLIENT_VERSION = '9.1.0';
+const CLIENT_VERSION = '10.0.0';
 const API_VERSION = '2015-07-06';
 
 export { Environments, CLIENT_VERSION, API_VERSION };