Hi, I'd like to start the voting thread for PIP-460: Scalable Topics (Topics v5).
PIP-460 introduces a new topic type that uses range-based routing instead of modulo hashing, enabling transparent splitting and merging of streams without breaking key ordering or requiring downtime. This is a parent PIP that establishes the motivation, goals, and key challenges; detailed design for each area (segment model, producer protocol, consumer controller, message entry format, split/merge mechanics, consumer APIs, geo-replication, and more) will follow in dedicated sub-PIPs. Proposal PR: https://github.com/apache/pulsar/pull/25315 Rendered PIP document: https://github.com/lhotari/pulsar/blob/lh-pip-460/pip/pip-460.md Discussion thread: https://lists.apache.org/thread/kthcmtxzv678d1gn9f5vo3psmwz4j3yr Please review the PIP document and vote! Thanks, Lari
