diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 93e2be7..f61d46c 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.69.0"
+  ".": "0.70.0"
 }
diff --git a/.stats.yml b/.stats.yml
index 4424fe7..316f1e8 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 120
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/kernel/kernel-cde481b2f320ce48f83db84ae96226b0e7568146c9387c4fefebf286ecb0dd0a.yml
-openapi_spec_hash: 6bd86d767290fcd7e2a6aae26dff5417
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/kernel/kernel-ab4e7c50c41fefd891648fa84ba0258986f192ba1bde9f42cbdf487f64c4cc27.yml
+openapi_spec_hash: b4bcd6557f7045ecff30b01e02d28ac5
 config_hash: 03c7e57f268c750e2415831662e95969
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a22e07..4d0c897 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.70.0 (2026-06-22)
+
+Full Changelog: [v0.69.0...v0.70.0](https://github.com/kernel/kernel-node-sdk/compare/v0.69.0...v0.70.0)
+
+### Features
+
+* Align browser-pool timeout/viewport/fill-rate contract with implementation; reject save_changes on update ([c3fe382](https://github.com/kernel/kernel-node-sdk/commit/c3fe38247a404a040812508e21c1252c9c421279))
+
 ## 0.69.0 (2026-06-18)
 
 Full Changelog: [v0.68.0...v0.69.0](https://github.com/kernel/kernel-node-sdk/compare/v0.68.0...v0.69.0)
diff --git a/package.json b/package.json
index 78cc415..ed4c30b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@onkernel/sdk",
-  "version": "0.69.0",
+  "version": "0.70.0",
   "description": "The official TypeScript library for the Kernel API",
   "author": "Kernel <>",
   "types": "dist/index.d.ts",
diff --git a/src/resources/browser-pools.ts b/src/resources/browser-pools.ts
index d403564..e4c0619 100644
--- a/src/resources/browser-pools.ts
+++ b/src/resources/browser-pools.ts
@@ -213,7 +213,9 @@ export namespace BrowserPool {
     extensions?: Array<Shared.BrowserExtension>;
 
     /**
-     * Percentage of the pool to fill per minute. Defaults to 10%.
+     * Percentage of the pool to fill per minute. Defaults to 10. The cap is 25 for
+     * most organizations but can be raised per-organization, so only the lower bound
+     * is enforced here.
      */
     fill_rate_per_minute?: number;
 
@@ -263,7 +265,7 @@ export namespace BrowserPool {
 
     /**
      * Default idle timeout in seconds for browsers acquired from this pool before they
-     * are destroyed. Defaults to 600 seconds if not specified
+     * are destroyed. Defaults to 600 seconds. Minimum 10, maximum 259200 (72 hours).
      */
     timeout_seconds?: number;
 
@@ -439,7 +441,9 @@ export interface BrowserPoolCreateParams {
   extensions?: Array<Shared.BrowserExtension>;
 
   /**
-   * Percentage of the pool to fill per minute. Defaults to 10%.
+   * Percentage of the pool to fill per minute. Defaults to 10. The cap is 25 for
+   * most organizations but can be raised per-organization, so only the lower bound
+   * is enforced here.
    */
   fill_rate_per_minute?: number;
 
@@ -489,7 +493,7 @@ export interface BrowserPoolCreateParams {
 
   /**
    * Default idle timeout in seconds for browsers acquired from this pool before they
-   * are destroyed. Defaults to 600 seconds if not specified
+   * are destroyed. Defaults to 600 seconds. Minimum 10, maximum 259200 (72 hours).
    */
   timeout_seconds?: number;
 
@@ -531,7 +535,9 @@ export interface BrowserPoolUpdateParams {
   extensions?: Array<Shared.BrowserExtension>;
 
   /**
-   * Percentage of the pool to fill per minute. Defaults to 10%.
+   * Percentage of the pool to fill per minute. Defaults to 10. The cap is 25 for
+   * most organizations but can be raised per-organization, so only the lower bound
+   * is enforced here.
    */
   fill_rate_per_minute?: number;
 
@@ -588,7 +594,7 @@ export interface BrowserPoolUpdateParams {
 
   /**
    * Default idle timeout in seconds for browsers acquired from this pool before they
-   * are destroyed. Defaults to 600 seconds if not specified
+   * are destroyed. Defaults to 600 seconds. Minimum 10, maximum 259200 (72 hours).
    */
   timeout_seconds?: number;
 
diff --git a/src/resources/shared.ts b/src/resources/shared.ts
index 8666f8a..e18de32 100644
--- a/src/resources/shared.ts
+++ b/src/resources/shared.ts
@@ -79,18 +79,18 @@ export interface BrowserProfile {
  */
 export interface BrowserViewport {
   /**
-   * Browser window height in pixels.
+   * Browser window height in pixels. Any positive integer is accepted.
    */
   height: number;
 
   /**
-   * Browser window width in pixels.
+   * Browser window width in pixels. Any positive integer is accepted.
    */
   width: number;
 
   /**
-   * Display refresh rate in Hz. If omitted, automatically determined from width and
-   * height.
+   * Display refresh rate in Hz. Any positive integer is accepted; if omitted,
+   * automatically determined from width and height.
    */
   refresh_rate?: number;
 }
diff --git a/src/version.ts b/src/version.ts
index f88b6d2..9d083b8 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const VERSION = '0.69.0'; // x-release-please-version
+export const VERSION = '0.70.0'; // x-release-please-version
diff --git a/tests/api-resources/browser-pools.test.ts b/tests/api-resources/browser-pools.test.ts
index 3d8e3eb..ff87070 100644
--- a/tests/api-resources/browser-pools.test.ts
+++ b/tests/api-resources/browser-pools.test.ts
@@ -38,7 +38,7 @@ describe('resource browserPools', () => {
       proxy_id: 'proxy_id',
       start_url: 'https://example.com',
       stealth: true,
-      timeout_seconds: 60,
+      timeout_seconds: 10,
       viewport: {
         height: 800,
         width: 1280,