Upgrade rabbitmq 3.7.11 > 4.2.2
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Johan Prieur
Dec 19, 2025, 10:53:10 AM (yesterday) Dec 19
to rabbitmq-users
Hello,
I have two RabbitMQ servers in a cluster running version 3.7.11 on Windows Server.
If I understand correctly, I cannot perform a Rolling (in‑place) Upgrade to the latest version?
Could you please confirm the actions to take:
- Export configuration to .json
- Stop the RabbitMQ service on the first server
- Upgrade Erlang
- Install RabbitMQ
- Start the service
- Enable the feature flags
- Enable the plugins
- Import the .json configuration file
- Repeat the same operation on the second server
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