Apache Pulsar End of Life Dates

Developers rely on Apache Pulsar for its distributed messaging and streaming capabilities, which have been available since its inception. The Apache Software Foundation maintains this project, ensuring it remains a viable solution for building scalable and fault-tolerant systems. Apache Pulsar has gained popularity among developers due to its flexibility and performance, making it an essential component in various applications. By tracking the end-of-life dates and supported versions of Apache Pulsar, developers can plan upgrades and ensure the long-term maintainability of their systems.

The current landscape of Apache Pulsar versions reveals that out of 14 total versions, 12 have already reached their end-of-life, leaving only 2 active versions. The latest stable version, 4.2.2, is the recommended choice for new deployments. However, version 4.2 is approaching its end-of-life, scheduled for September 24, 2026, which means that developers should start planning their upgrade to a newer version to avoid potential security risks and lack of support. The most recent version to reach end-of-life was 4.1, which occurred on March 8, 2026, marking the end of support for that particular release.

Given the current security posture of Apache Pulsar, with 0 tracked CVEs and 0 critical vulnerabilities, the project presents a relatively low-risk profile. Since there are no known vulnerabilities, there is no most affected version, and no Key Encryption Vulnerabilities status applies. Despite this favorable security situation, developers should remain vigilant and continue to monitor the project's security timeline to ensure they are always running a secure and supported version of Apache Pulsar. By staying informed about upcoming end-of-life dates and potential security issues, developers can take proactive measures to protect their systems and maintain the integrity of their applications.