---
title: CSharp-SDK - 3.11.3
slug: feature-experimentation/release-notes/csharp-sdk-3-11-3
docTags: 
createdAt: 2026-07-20T15:45:10.754Z
---

## [#3113](docId\:JO1NKcF02FP_corr7yQJ0)3.11.3

July 18, 2023

### [#bug-fix](docId\:JO1NKcF02FP_corr7yQJ0)Bug Fix

- Last-Modified in header not found and used to reduce polling payload ([#355](https://github.com/optimizely/csharp-sdk/pull/355)).

[https://github.com/optimizely/csharp-sdk/releases/tag/3.11.3](https://github.com/optimizely/csharp-sdk/releases/tag/3.11.3)