---
title: "DRM License Server 5.11.3"
description: "License Cipher Issuance Logic Improved: The internal logic responsible for issuing license ciphers has been refactored to improve reliability and…"
---
> For the complete documentation index, see [llms.txt](/llms.txt).

**Improvements**

- **License Cipher Issuance Logic Improved**: The internal logic responsible for issuing license ciphers has been refactored to improve reliability and consistency. This change reduces edge-case failures during the cipher issuance flow, particularly for sites where the license cipher service activation state is reflected in site configuration.

- **Enhanced PlayReady Error 7202 Diagnostics**: Previously, all internal PlayReady Server SDK failures were surfaced as a generic error code 7202 (`Server Internal Error`), making root cause analysis difficult without manually inspecting server logs. The server now captures and propagates the detailed SDK-level error message (e.g., KID mismatch, AES-CBC client incompatibility, ExpirationDate overflow) directly within the error response and log output, significantly reducing investigation time for support and operations teams.

- **Internal Log Processing Improvements**: Refactored internal log handling pipelines for cleaner, more structured log output. This improves log ingestion quality in observability platforms (e.g., OpenSearch) and reduces noise during high-throughput license issuance scenarios.


**Bug Fixes**

- **PlayReady License Duration Max Value Fix**: A bug was identified in the `expire_date` validation logic for PlayReady licenses where excessively large duration values caused a `System.OverflowException` in the PlayReady Server SDK during `UInt32` conversion of the `ExpirationDate` field. The maximum allowed duration is now enforced at **1,577,923,200 seconds (~50 years)**, consistent with the PlayReady SDK's safe operating range. This fix prevents license generation failures for long-lived or persistent license configurations.