diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cc341d9..f79a4b2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ${{ github.repository == 'stainless-sdks/kernel-typescript' && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
     if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Node
         uses: actions/setup-node@v4
@@ -41,7 +41,7 @@ jobs:
       contents: read
       id-token: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Node
         uses: actions/setup-node@v4
@@ -74,7 +74,7 @@ jobs:
     runs-on: ${{ github.repository == 'stainless-sdks/kernel-typescript' && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
     if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Node
         uses: actions/setup-node@v4
diff --git a/.github/workflows/publish-npm.yml b/.github/workflows/publish-npm.yml
index 9032e71..a660478 100644
--- a/.github/workflows/publish-npm.yml
+++ b/.github/workflows/publish-npm.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Node
         uses: actions/setup-node@v3
diff --git a/.github/workflows/release-doctor.yml b/.github/workflows/release-doctor.yml
index 8e58775..588ae1b 100644
--- a/.github/workflows/release-doctor.yml
+++ b/.github/workflows/release-doctor.yml
@@ -12,7 +12,7 @@ jobs:
     if: github.repository == 'kernel/kernel-node-sdk' && (github.event_name == 'push' || github.event_name == 'workflow_dispatch' || startsWith(github.head_ref, 'release-please') || github.head_ref == 'next')
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Check release environment
         run: |
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index c84411f..2b11449 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.26.0"
+  ".": "0.27.0"
 }
diff --git a/.stats.yml b/.stats.yml
index 330b531..b78a34d 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 91
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/kernel%2Fkernel-4f5307643555b7917e8681b1966ae0b99f770cf59805e2f917ec7528edf11ba8.yml
-openapi_spec_hash: 873a9aa3a88b6cec1ad94f848eeb1c45
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/kernel%2Fkernel-fc2c80b398a8dd511010ae7cda5e21c353e388ee130aa288974b47af4208b5b8.yml
+openapi_spec_hash: 5e06586dbbb9fce12b907f4e32497006
 config_hash: 20337f7888852c165d099faa7589c90a
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 941a157..2a86a42 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## 0.27.0 (2026-01-17)
+
+Full Changelog: [v0.26.0...v0.27.0](https://github.com/kernel/kernel-node-sdk/compare/v0.26.0...v0.27.0)
+
+### Features
+
+* Auth agents auth check URL ([7c75e74](https://github.com/kernel/kernel-node-sdk/commit/7c75e7439229cb1a699d0eb25fd830ed72053fda))
+
+
+### Chores
+
+* **internal:** update `actions/checkout` version ([1ddf4de](https://github.com/kernel/kernel-node-sdk/commit/1ddf4de47a73022e392459109d17d25f80f38db9))
+
 ## 0.26.0 (2026-01-16)
 
 Full Changelog: [v0.24.0...v0.26.0](https://github.com/kernel/kernel-node-sdk/compare/v0.24.0...v0.26.0)
diff --git a/package.json b/package.json
index 56082e4..5e3707b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@kernel/sdk",
-  "version": "0.26.0",
+  "version": "0.27.0",
   "description": "The official TypeScript library for the Kernel API",
   "author": "Kernel <>",
   "types": "dist/index.d.ts",
diff --git a/src/resources/agents/auth/auth.ts b/src/resources/agents/auth/auth.ts
index a02a64f..ac69356 100644
--- a/src/resources/agents/auth/auth.ts
+++ b/src/resources/agents/auth/auth.ts
@@ -286,6 +286,12 @@ export interface AuthAgent {
    * When the last authentication check was performed
    */
   last_auth_check_at?: string;
+
+  /**
+   * URL where the browser landed after successful login. Query parameters and
+   * fragments are stripped for privacy.
+   */
+  post_login_url?: string;
 }
 
 /**
diff --git a/src/version.ts b/src/version.ts
index aa25151..288031c 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const VERSION = '0.26.0'; // x-release-please-version
+export const VERSION = '0.27.0'; // x-release-please-version