Please review "PIP-478: Asynchronous v5 client auth plugin interfaces and TLS material provider plugin interface" PR github.com/apache/pulsar/pull/25890. This is a large PIP for Pulsar 5.0. The vote has already been accepted. The PIP PR needs a review before merging. The draft implementation PRs are in my fork and I'll start pushing them to apache/pulsar one by one.