RabbitMQ `3.9.5` is a maintenance release in the `3.9.x` release series. Please refer to the **Upgrading to 3.9** section from [v3.9.0 release notes](https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.9.0) if upgrading from a version prior to 3.9.0. This release requires at least Erlang 23.2, and supports the latest Erlang 24 version, 24.0.5 at the time of release. [RabbitMQ and Erlang/OTP Compatibility Matrix](https://www.rabbitmq.com/which-erlang.html) has more details on Erlang version requirements for RabbitMQ. ## Changes Worth Mentioning Release notes are kept under [rabbitmq-server/release-notes](https://github.com/rabbitmq/rabbitmq-server/tree/v3.9.x/release-notes). Contributors are encouraged to update them together with their changes. This helps with release automation and more consistent release schedule. ### Core Server #### Bug Fixes * Virtual host metadata (description, tags) was not imported from definitions. GitHub issue: [#3333](https://github.com/rabbitmq/rabbitmq-server/pull/3333) * Reduced unnecessary debug logging from streams. GitHub issue: [#3279](https://github.com/rabbitmq/rabbitmq-server/pull/3279) ### AWS Peer Discovery Plugin #### Enhancements * AWS API calls are now retried multiple times. Contributed by AWS. GitHub issue: [#3329](https://github.com/rabbitmq/rabbitmq-server/pull/3329) ### Management Plugin #### Enhancements * `PUT /api/vhosts/{name}` now can update metadata (tags and descriptions) for existing virtual hosts. GitHub issue: [#3319](https://github.com/rabbitmq/rabbitmq-server/pull/3319) ## Dependency Upgrades No dependency changes in this release. ## Source Code Archives To obtain source code of the entire distribution, please download the archive named `rabbitmq-server-3.9.5.tar.xz` instead of the source tarball produced by GitHub.