---
title: CSharp-SDK - 3.9.0
slug: feature-experimentation/release-notes/csharp-sdk-3-9-0
docTags: 
createdAt: 2026-07-20T15:44:59.358Z
---

### Bug Fixes:

\- When no error handler is given for HttpProjectConfigManager, then default error handler should be used without raise exception. \[#260]\([https://github.com/optimizely/csharp-sdk/pull/260](https://github.com/optimizely/csharp-sdk/pull/260))
\- .Net Standard 2.0 was missing Configuration manager library in nugget package. \[#262]\([https://github.com/optimizely/csharp-sdk/pull/262](https://github.com/optimizely/csharp-sdk/pull/262))

[https://github.com/optimizely/csharp-sdk/releases/tag/v3.9.0](https://github.com/optimizely/csharp-sdk/releases/tag/v3.9.0)