- Requires Erlang 24.2 or later; nodes on older Erlang versions will fail to start (breaking change).
- CLI `rabbitmq diagnostics status` now tolerates missing free‑disk‑space info during early boot and several plugins (Shovel, Windows installer) receive bug‑fixes.
- Management UI adds `rel="noopener noreferrer"` to external links to prevent reverse‑tabnabbing (security).