---
title: CSharp-SDK - v1.1.1
slug: feature-experimentation/release-notes/csharp-sdk-v1-1-1
createdAt: 2026-07-20T15:44:39.096Z
---

- Add .Net 4.0 build in nuget package.

[https://github.com/optimizely/csharp-sdk/releases/tag/v1.1.1](https://github.com/optimizely/csharp-sdk/releases/tag/v1.1.1)