Erlang/OTP 27 Is Currently Not Supported

Erlang/OTP 27.0 was released on May 20th, 2024. While it contains a lot of exciting features and improvements, unfortunately RabbitMQ currently doesn't work well with this version.

Our team has discovered significant performance regressions on Erlang 27, as high as 30% lower message throughput in many common workloads.

We are investigating the root cause of the regressions. Please do not use Erlang/OTP 27 with RabbitMQ at this time.

We will announce support for Erlang/OTP 27 when we are confident that it works well with RabbitMQ.