diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8c96ca356..29e05db55 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
   lint:
     timeout-minutes: 10
     name: lint
-    runs-on: ${{ github.repository == 'stainless-sdks/agentex-sdk-python' && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
+    runs-on: ${{ startsWith(github.repository, 'stainless-sdks/') && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
     if: (github.event_name == 'push' || github.event.pull_request.head.repo.fork) && (github.event_name != 'push' || github.event.head_commit.message != 'codegen metadata')
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
@@ -44,7 +44,7 @@ jobs:
     permissions:
       contents: read
       id-token: write
-    runs-on: ${{ github.repository == 'stainless-sdks/agentex-sdk-python' && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
+    runs-on: ${{ startsWith(github.repository, 'stainless-sdks/') && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
@@ -87,7 +87,7 @@ jobs:
   test:
     timeout-minutes: 10
     name: test
-    runs-on: ${{ github.repository == 'stainless-sdks/agentex-sdk-python' && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
+    runs-on: ${{ startsWith(github.repository, 'stainless-sdks/') && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
     if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index fa12be2ab..f47357f55 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,4 +1,4 @@
 {
-  ".": "0.20.0",
-  "adk": "0.20.0"
+  ".": "0.21.0",
+  "adk": "0.21.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3fd212e16..8adaa5f9e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,14 @@
 
 * **tracing:** emit OTel metrics for async span queue depth, batch drain, and SGP export success/failure (HTTP status labels). Disable SDK-side recording with ``AGENTEX_TRACING_METRICS=0``.
 
+## 0.21.0 (2026-07-17)
+
+Full Changelog: [agentex-client-v0.20.0...agentex-client-v0.21.0](https://github.com/scaleapi/scale-agentex-python/compare/agentex-client-v0.20.0...agentex-client-v0.21.0)
+
+### Features
+
+* **stlc:** configurable CI runner and private-production-repo support in workflow templates ([23c1b6b](https://github.com/scaleapi/scale-agentex-python/commit/23c1b6b8dc60f16c5e19a1aab68d244d286caffc))
+
 ## 0.20.0 (2026-07-16)
 
 Full Changelog: [agentex-client-v0.19.0...agentex-client-v0.20.0](https://github.com/scaleapi/scale-agentex-python/compare/agentex-client-v0.19.0...agentex-client-v0.20.0)
diff --git a/adk/CHANGELOG.md b/adk/CHANGELOG.md
index 76e5d8779..ed2c86954 100644
--- a/adk/CHANGELOG.md
+++ b/adk/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.21.0 (2026-07-17)
+
+Full Changelog: [agentex-sdk-v0.20.0...agentex-sdk-v0.21.0](https://github.com/scaleapi/scale-agentex-python/compare/agentex-sdk-v0.20.0...agentex-sdk-v0.21.0)
+
+### Chores
+
+* **agentex-sdk:** Synchronize agentex versions
+
 ## 0.20.0 (2026-07-16)
 
 Full Changelog: [agentex-sdk-v0.19.0...agentex-sdk-v0.20.0](https://github.com/scaleapi/scale-agentex-python/compare/agentex-sdk-v0.19.0...agentex-sdk-v0.20.0)
diff --git a/adk/pyproject.toml b/adk/pyproject.toml
index 5fca1d619..808e2945f 100644
--- a/adk/pyproject.toml
+++ b/adk/pyproject.toml
@@ -4,7 +4,7 @@
 # (agentex/{__init__.py, _*.py, types/, resources/}) ships from the slim
 # sibling package `agentex-client` which is pinned as a runtime dep.
 name = "agentex-sdk"
-version = "0.20.0"
+version = "0.21.0"
 description = "Agent Development Kit (ADK) overlay for the Agentex API — FastACP server, Temporal workflows, LLM provider integrations, observability"
 license = "Apache-2.0"
 authors = [
diff --git a/pyproject.toml b/pyproject.toml
index 4a3fea3f2..6aa945921 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@
 # overlay (formerly `src/agentex/lib/*`) now lives in `adk/` and ships
 # as the sibling `agentex-sdk` package — see `adk/pyproject.toml`.
 name = "agentex-client"
-version = "0.20.0"
+version = "0.21.0"
 description = "The official Python REST client for the Agentex API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/agentex/_version.py b/src/agentex/_version.py
index a6c7a942b..9bc04e166 100644
--- a/src/agentex/_version.py
+++ b/src/agentex/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "agentex"
-__version__ = "0.20.0"  # x-release-please-version
+__version__ = "0.21.0"  # x-release-please-version