# Apache Pulsar 5.0.0-M1: A Preview of the Next Major Release

DevFeed: [Apache Pulsar 5.0.0-M1: A Preview of the Next Major Release](<https://devfeed.tech/articles/apache-pulsar-5-0-0-m1-a-preview-of-the-next-major-release-12767.md>)

Original publisher: [Read original article](<https://pulsar.apache.org/blog/2026/06/23/announcing-apache-pulsar-5-0-m1/>)

Author: Matteo Merli, Lari Hotari

Published: 2026-06-23T00:00:00Z

Content type: release

Language: en

Sources: [Apache Pulsar Blog](<https://devfeed.tech/sources/apache-pulsar-blog.md>)

Topics: [Apache Pulsar](<https://devfeed.tech/topics/pulsar.md>), [Availability](<https://devfeed.tech/topics/availability.md>), [GitHub](<https://devfeed.tech/topics/github.md>)

Tags: [announce](<https://devfeed.tech/tags/announce.md>), [apache](<https://devfeed.tech/tags/apache.md>), [features](<https://devfeed.tech/tags/features.md>), [github](<https://devfeed.tech/tags/github.md>), [next](<https://devfeed.tech/tags/next.md>), [production](<https://devfeed.tech/tags/production.md>), [release](<https://devfeed.tech/tags/release.md>)

## AI overview

Apache Pulsar 5.0.0-M1 is an early preview of the next major release, intended for testing with real workloads and feedback before general availability. The milestone introduces Scalable Topics, which automatically adjust capacity to actual load while preserving per-key ordering, and promotes Oxia to Pulsar's recommended metadata store.

## Source excerpt

The Apache Pulsar community is pleased to announce Apache Pulsar 5.0.0-M1, the first milestone on the road to Pulsar 5.0. It is a preview: an early build that puts the major new features of 5.0 in your hands so you can try them against real workloads and send feedback well ahead of the general-availability (GA) release. It is not meant for production.