diff --git a/CHANGELOG.md b/CHANGELOG.md
index 82f6d65..d3a01cd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,15 @@
 <!-- This file is generated, please add to it using `knope document-change` in the client-library-templates repo -->
 # Changelog
 
+## 6.18.0 (2026-10-06)
+
+### Features
+
+#### Add previously undocumented fields to billing_request
+
+Add `payment_request.retry_if_possible` - On failure, automatically retry payments using intelligent retries.
+Add `actions.available_country_codes` - list of currencies the current mandate supports
+
 ## 6.17.0 (2026-10-06)
 
 ### Features
diff --git a/README.md b/README.md
index 661c855..2c2e7e3 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ toolchain will resolve and fetch the gocardless-pro-go module automatically.
 Alternatively, you can also explicitly `go get` the package into a project:
 
 ```
-go get -u github.com/gocardless/gocardless-pro-go@v6.17.0
+go get -u github.com/gocardless/gocardless-pro-go@v6.18.0
 ```
 
 ## Initializing the client
diff --git a/VERSION b/VERSION
index 4e19b1d..de35ee7 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-6.17.0
\ No newline at end of file
+6.18.0
\ No newline at end of file
diff --git a/useragent.go b/useragent.go
index 37024ed..bdc7945 100644
--- a/useragent.go
+++ b/useragent.go
@@ -7,7 +7,7 @@ import (
 
 const (
 	// client library version
-	ClientLibVersion = "6.17.0"
+	ClientLibVersion = "6.18.0"
 )
 
 var userAgent string