diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 762bfff4..0cbefce6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
     timeout-minutes: 10
     name: lint
     runs-on: ${{ github.repository == 'stainless-sdks/retell-python' && 'depot-ubuntu-24.04' || 'ubuntu-latest' }}
-    if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
+    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@v6
 
@@ -38,7 +38,7 @@ jobs:
         run: ./scripts/lint
 
   build:
-    if: github.event_name == 'push' || github.event.pull_request.head.repo.fork
+    if: (github.event_name == 'push' || github.event.pull_request.head.repo.fork) && (github.event_name != 'push' || github.event.head_commit.message != 'codegen metadata')
     timeout-minutes: 10
     name: build
     permissions:
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index c17e0b97..09aab9a4 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "5.22.2"
+  ".": "5.23.0"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e9e256ed..13ed2f37 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,18 @@
 # Changelog
 
+## 5.23.0 (2026-03-27)
+
+Full Changelog: [v5.22.2...v5.23.0](https://github.com/RetellAI/retell-python-sdk/compare/v5.22.2...v5.23.0)
+
+### Features
+
+* **internal:** implement indices array format for query and form serialization ([47b841a](https://github.com/RetellAI/retell-python-sdk/commit/47b841a1bf585620190b69e685d5f6e01a36cd55))
+
+
+### Chores
+
+* **ci:** skip lint on metadata-only changes ([73e065b](https://github.com/RetellAI/retell-python-sdk/commit/73e065b3bc7d6cd7a85356dd4856efd3883d0a84))
+
 ## 5.22.2 (2026-03-24)
 
 Full Changelog: [v5.22.1...v5.22.2](https://github.com/RetellAI/retell-python-sdk/compare/v5.22.1...v5.22.2)
diff --git a/pyproject.toml b/pyproject.toml
index 9ea47bad..a1a21e07 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "retell-sdk"
-version = "5.22.2"
+version = "5.23.0"
 description = "The official Python library for the retell API"
 dynamic = ["readme"]
 license = "Apache-2.0"
diff --git a/src/retell/_qs.py b/src/retell/_qs.py
index ada6fd3f..de8c99bc 100644
--- a/src/retell/_qs.py
+++ b/src/retell/_qs.py
@@ -101,7 +101,10 @@ def _stringify_item(
                     items.extend(self._stringify_item(key, item, opts))
                 return items
             elif array_format == "indices":
-                raise NotImplementedError("The array indices format is not supported yet")
+                items = []
+                for i, item in enumerate(value):
+                    items.extend(self._stringify_item(f"{key}[{i}]", item, opts))
+                return items
             elif array_format == "brackets":
                 items = []
                 key = key + "[]"
diff --git a/src/retell/_version.py b/src/retell/_version.py
index 189b047f..26761ae3 100644
--- a/src/retell/_version.py
+++ b/src/retell/_version.py
@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "retell"
-__version__ = "5.22.2"  # x-release-please-version
+__version__ = "5.23.0"  # x-release-please-version