ANN RabbitMQ AMQP 0.9.1 Java Client 5.27.0 is released

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Arnaud Cogoluegnes

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Oct 17, 2025, 9:38:42 AMOct 17
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On behalf of the RabbitMQ team I'm happy to announce that the RabbitMQ
AMQP 0.9.1 Java Client library 5.27.0 is available..

This is a maintenance release with a new feature, a bug fix,
dependency upgrades, and some internal refactoring. It is compatible
with 5.26.0. All users are encouraged to upgrade.

This release introduces a Netty-based frame handler [1] and deprecates
the NIO-based one. Users of NIO are encouraged to switch to Netty.
This does not change anything for users of the default frame handler
(socket-based, blocking IO).

Please review the release notes for more details [2].

[1] https://www.rabbitmq.com/client-libraries/java-api-guide#netty
[2] https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.27.0
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