---
title: "DRM License Server 5.11.1"
description: "This release updates the PlayReady License Server with PlayReady Server SDK 4.7.8118 and migrates the server environment from Windows to Linux…"
---
> For the complete documentation index, see [llms.txt](/llms.txt).

- This release updates the PlayReady License Server with PlayReady Server SDK 4.7.8118 and migrates the server environment from Windows to Linux (Amazon Linux 2023).

- The migration to Linux infrastructure provides enhanced server performance and improved operational management capabilities.

- Comprehensive QA testing has been completed to maintain full backward compatibility with existing client implementations.