feat: release v0.4.18 to fix IndentationError in v0.4.17

- Bump version to 0.4.18 across all version files
- Add comprehensive changelog documenting the fix for 0.4.17 issues
- Skip broken 0.4.17 release due to codegen-introduced syntax errors
- Restore working functionality for users affected by IndentationError
- Update release-please manifest for proper automation

This release fixes the critical IndentationError in openai.py that was
introduced in v0.4.17 and was breaking agent deployments.

Author: danielmillerp

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "0.4.16"
+  ".": "0.4.18"
 }

CHANGELOG.md

@@ -1,5 +1,21 @@
 # Changelog
 
+## 0.4.18 (2025-09-29)
+
+Full Changelog: [v0.4.16...v0.4.18](https://github.com/scaleapi/agentex-python/compare/v0.4.16...v0.4.18)
+
+### Bug Fixes
+
+* **openai.py:** Fix IndentationError that was introduced in 0.4.17 breaking agent deployments
+* Skip broken 0.4.17 release and jump directly to 0.4.18 with fixes
+* Resolve syntax errors in OpenAI provider that prevented module imports
+
+### Notes
+
+* Version 0.4.17 contained broken codegen changes that caused `IndentationError: unexpected indent` 
+* This release restores working functionality for users affected by the broken 0.4.17 release
+* Users should upgrade directly from 0.4.16 to 0.4.18, skipping 0.4.17
+
 ## 0.4.16 (2025-09-16)
 
 Full Changelog: [v0.4.15...v0.4.16](https://github.com/scaleapi/agentex-python/compare/v0.4.15...v0.4.16)

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "agentex-sdk"
-version = "0.4.16"
+version = "0.4.18"
 description = "The official Python library for the agentex API"
 dynamic = ["readme"]
 license = "Apache-2.0"

src/agentex/_version.py

@@ -1,4 +1,4 @@
 # File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 
 __title__ = "agentex"
-__version__ = "0.4.16"  # x-release-please-version
+__version__ = "0.4.18"  # x-release-please-version