Release History

This page documents Queen MQ server releases and their compatible client versions.

Version Compatibility Matrix

Server Version	Description	Compatible Clients
0.8.0	Added Shared Cache with UDP sync for clustered deployment	JS ≥0.7.4, Python ≥0.7.4
0.7.5	First stable release	JS ≥0.7.4, Python ≥0.7.4

Release Details

Version 0.8.0

Highlights:

• Added Shared Cache with UDP sync for clustered deployment
• Enables multi-server deployments to share state efficiently
• Reduces database queries by 80-90% in clustered environments

Compatible Clients:

• JavaScript Client: queen-mq ≥0.7.4
• Python Client: queen-mq ≥0.7.4

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Version 0.7.5

Highlights:

• First stable release of Queen MQ
• Full feature set including partitions, consumer groups, transactions, and streaming
• Production-ready with comprehensive testing

Compatible Clients:

• JavaScript Client: queen-mq ≥0.7.4
• Python Client: queen-mq ≥0.7.4

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Client Installation

Install the latest compatible clients:

JavaScript:

npm install queen-mq

Python:

pip install queen-mq

Upgrading

When upgrading the Queen MQ server, ensure your client libraries are at or above the minimum compatible version listed in the table above.

Backward Compatibility

Client versions are generally backward compatible with newer server versions. Always check this table when upgrading the server to ensure your clients remain compatible.