To anyone who is using the multi advertised listeners feature, an important bugfix was merged into Pulsar 2.9 that may affect you.
> [Issue 12040][broker] Fix advertised listener confusion > https://github.com/apache/pulsar/pull/12353 You might have observed that version 2.8.1 had some surprising effects (see above PR for a detailed description and mitigation steps). Prepare for those effects to be undone in 2.9. Thanks, Eron Wright
