diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
deleted file mode 100644
index 8ea34be9..00000000
--- a/.devcontainer/Dockerfile
+++ /dev/null
@@ -1,23 +0,0 @@
-# syntax=docker/dockerfile:1
-FROM debian:bookworm-slim AS stainless
-
-RUN apt-get update && apt-get install -y \
-  nodejs \
-  npm \
-  yarnpkg \
-  && apt-get clean autoclean
-
-# Ensure UTF-8 encoding
-ENV LANG=C.UTF-8
-ENV LC_ALL=C.UTF-8
-
-# Yarn
-RUN ln -sf /usr/bin/yarnpkg /usr/bin/yarn
-
-WORKDIR /workspace
-
-COPY package.json yarn.lock /workspace/
-
-RUN yarn install
-
-COPY . /workspace
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index ba56e37e..de6d98bb 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "5.37.2"
+  ".": "5.38.0"
 }
diff --git a/.stats.yml b/.stats.yml
index f7ecd1ab..36221097 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 118
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-7936e3f73bbe1d59d27fd7a8a226985927b38fdec1c936c77577381699fb6140.yml
-openapi_spec_hash: 1d3f9ed5fbdb0e40d56d6acd9d1736e2
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/orb%2Forb-03af7f658aed245cf7e230055de59fe92a78880f3719bf254ed9352bf89bad5e.yml
+openapi_spec_hash: c4703d217c25e8c02c248caed9e2d3be
 config_hash: 895e36fb2d717958770fd4cf883f4b74
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26fdf490..74391d32 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## 5.38.0 (2025-12-06)
+
+Full Changelog: [v5.37.2...v5.38.0](https://github.com/orbcorp/orb-node/compare/v5.37.2...v5.38.0)
+
+### Features
+
+* **api:** api update ([da063a7](https://github.com/orbcorp/orb-node/commit/da063a7d803817dffd3862d0a02a21db1b6c0947))
+
+
+### Chores
+
+* **internal:** codegen related update ([40d3a87](https://github.com/orbcorp/orb-node/commit/40d3a87edb6e7ec4ccafcbeaaf43e33fe9d524cd))
+
 ## 5.37.2 (2025-12-05)
 
 Full Changelog: [v5.37.1...v5.37.2](https://github.com/orbcorp/orb-node/compare/v5.37.1...v5.37.2)
diff --git a/package.json b/package.json
index b6131e00..115c52ca 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "orb-billing",
-  "version": "5.37.2",
+  "version": "5.38.0",
   "description": "The official TypeScript library for the Orb API",
   "author": "Orb <team@withorb.com>",
   "types": "dist/index.d.ts",
diff --git a/src/resources/subscription-changes.ts b/src/resources/subscription-changes.ts
index e93e26c0..53e425df 100644
--- a/src/resources/subscription-changes.ts
+++ b/src/resources/subscription-changes.ts
@@ -236,6 +236,11 @@ export interface MutatedSubscription {
 export interface SubscriptionChangeRetrieveResponse {
   id: string;
 
+  /**
+   * The type of change (e.g., 'schedule_plan_change', 'create_subscription').
+   */
+  change_type: string;
+
   /**
    * Subscription change will be cancelled at this time and can no longer be applied.
    */
@@ -250,10 +255,31 @@ export interface SubscriptionChangeRetrieveResponse {
    */
   applied_at?: string | null;
 
+  /**
+   * Billing cycle alignment for plan changes.
+   */
+  billing_cycle_alignment?: string | null;
+
   /**
    * When this change was cancelled.
    */
   cancelled_at?: string | null;
+
+  /**
+   * How the change is scheduled (e.g., 'immediate', 'end_of_subscription_term',
+   * 'requested_date').
+   */
+  change_option?: string | null;
+
+  /**
+   * When this change will take effect.
+   */
+  effective_date?: string | null;
+
+  /**
+   * The target plan ID for plan changes.
+   */
+  plan_id?: string | null;
 }
 
 /**
@@ -265,6 +291,11 @@ export interface SubscriptionChangeRetrieveResponse {
 export interface SubscriptionChangeApplyResponse {
   id: string;
 
+  /**
+   * The type of change (e.g., 'schedule_plan_change', 'create_subscription').
+   */
+  change_type: string;
+
   /**
    * Subscription change will be cancelled at this time and can no longer be applied.
    */
@@ -279,10 +310,31 @@ export interface SubscriptionChangeApplyResponse {
    */
   applied_at?: string | null;
 
+  /**
+   * Billing cycle alignment for plan changes.
+   */
+  billing_cycle_alignment?: string | null;
+
   /**
    * When this change was cancelled.
    */
   cancelled_at?: string | null;
+
+  /**
+   * How the change is scheduled (e.g., 'immediate', 'end_of_subscription_term',
+   * 'requested_date').
+   */
+  change_option?: string | null;
+
+  /**
+   * When this change will take effect.
+   */
+  effective_date?: string | null;
+
+  /**
+   * The target plan ID for plan changes.
+   */
+  plan_id?: string | null;
 }
 
 /**
@@ -294,6 +346,11 @@ export interface SubscriptionChangeApplyResponse {
 export interface SubscriptionChangeCancelResponse {
   id: string;
 
+  /**
+   * The type of change (e.g., 'schedule_plan_change', 'create_subscription').
+   */
+  change_type: string;
+
   /**
    * Subscription change will be cancelled at this time and can no longer be applied.
    */
@@ -308,10 +365,31 @@ export interface SubscriptionChangeCancelResponse {
    */
   applied_at?: string | null;
 
+  /**
+   * Billing cycle alignment for plan changes.
+   */
+  billing_cycle_alignment?: string | null;
+
   /**
    * When this change was cancelled.
    */
   cancelled_at?: string | null;
+
+  /**
+   * How the change is scheduled (e.g., 'immediate', 'end_of_subscription_term',
+   * 'requested_date').
+   */
+  change_option?: string | null;
+
+  /**
+   * When this change will take effect.
+   */
+  effective_date?: string | null;
+
+  /**
+   * The target plan ID for plan changes.
+   */
+  plan_id?: string | null;
 }
 
 export interface SubscriptionChangeApplyParams {
diff --git a/src/version.ts b/src/version.ts
index 18f1e75e..e3f68a1d 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const VERSION = '5.37.2'; // x-release-please-version
+export const VERSION = '5.38.0'; // x-release-please-version