Apache Pulsar End of Life (EOL) Dates & Support Timeline
Complete end-of-life dates, support windows, and security status for all Apache Pulsar versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
Apache Pulsar 4.2 is supported until September 24, 2026. It is also the next Apache Pulsar version to reach end of life. 12 of 14 tracked Apache Pulsar versions are past end of life; the most recent to reach it, 4.1, did so on March 8, 2026.
Running an EOL version? Get matched with support options — free ↓| Version | Latest Release | Release Date | EOL Date | Extended Support | Days | Status |
|---|---|---|---|---|---|---|
| 2.5 | 2.5.2 | Jan 15, 2020 | Jan 15, 2021 | — | 2060 days past EOL | EOL |
| 2.6 | 2.6.4 | Jun 17, 2020 | Jun 17, 2021 | — | 1907 days past EOL | EOL |
| 2.7 | 2.7.5 | Dec 3, 2020 | Dec 3, 2021 | — | 1738 days past EOL | EOL |
| 2.8 | 2.8.4 | Jun 15, 2021 | Jun 15, 2022 | — | 1544 days past EOL | EOL |
| 2.9 | 2.9.5 | Dec 20, 2021 | Dec 20, 2022 | — | 1356 days past EOL | EOL |
| 2.10 | 2.10.6 | Apr 18, 2022 | Apr 18, 2023 | — | 1237 days past EOL | EOL |
| 2.11 | 2.11.4 | Jan 11, 2023 | Jan 11, 2024 | — | 969 days past EOL | EOL |
| 3.0 LTS | 3.0.17 | May 2, 2023 | May 2, 2025 | May 2, 2026 Extended support (ended) |
492 days past EOL | EOL |
| 3.1 | 3.1.3 | Aug 10, 2023 | Feb 10, 2024 | — | 939 days past EOL | EOL |
| 3.2 | 3.2.4 | Feb 5, 2024 | Aug 5, 2024 | — | 762 days past EOL | EOL |
| 3.3 | 3.3.9 | Jun 5, 2024 | Dec 5, 2024 | — | 640 days past EOL | EOL |
| 4.0 LTS | 4.0.13 | Oct 21, 2024 | Oct 21, 2026 | Oct 21, 2027 Extended support |
45 days remaining | Warning |
| 4.1 | 4.1.3 | Sep 8, 2025 | Mar 8, 2026 | — | 182 days past EOL | EOL |
| 4.2 | 4.2.4 | Mar 24, 2026 | Sep 24, 2026 | — | 18 days remaining | Warning |
Live EOL badge for your README — updates automatically at every build.
[](https://endoflife.ai/apache-pulsar)
Apache Pulsar release and support pattern
Across the 14 release lines with a published release date, Apache Pulsar has shipped a new line roughly every 6 months (median interval). A line typically stays in standard support for about 1 year from its release to its standard-support end date. 2 of the 14 tracked lines are designated long-term support, which is where the longer windows sit.
Of the 14 release lines tracked, 12 are past end of life and 2 are still within support. The newest line, 4.2, was released March 24, 2026. The next scheduled end of life is 4.2 on September 24, 2026 — 17 days from this build. The longest-supported line currently published is 4.0, to October 21, 2026. Upstream also publishes an extended-support phase for 14 lines, shown in the table above.
Computed from the tracked release data at every build — the figures above are the dates in the table, restated, not an editorial estimate.
What does Apache Pulsar end of life mean for your organization?
When a version of Apache Pulsar reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the accumulation of unpatched vulnerabilities in EOL software. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no patch will ever exist. This is the most dangerous gap in enterprise security posture.
Organizations running EOL Apache Pulsar should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.
Your options when Apache Pulsar reaches end of life
There are four realistic paths. Which one is right depends far more on how long the system needs to keep running than on the version you are on today.
| Option | Best when | Watch out for |
|---|---|---|
| Move to a supported version | The system will outlive the current version's support window and you can schedule the work | Budget for compatibility testing, not just the upgrade itself — that is where the real cost sits |
| Replace the component | The project is unmaintained, or a better-supported alternative exists | The replacement has its own lifecycle and its own end-of-life date — you are changing vendors, not escaping the problem |
| Buy extended support | Migration is genuinely underway but cannot finish before the deadline, or the workload is frozen by certification or a third-party application | A bridge, not a destination — every year purchased is a year the migration still has to happen |
| Document accepted risk | The system is isolated, short-lived, or scheduled for retirement | Only defensible with real compensating controls and a written decision — auditors treat undocumented end-of-life software as a finding |
How to choose, in one question: how many more years does this system need to run? Under a year, extended support (where it exists) is usually cheaper than an emergency migration. One to three years, migrate — support purchased repeatedly costs more than doing the project once, and the project only gets harder as the version ages. Indefinitely, migrate now and plan the next migration before it surprises you.
Worth saying plainly, because vendors selling extended support rarely will: extended support is often the more expensive choice over a multi-year horizon. It is the right answer when a deadline is genuinely unreachable, not as a default. Compare the annual fee against the one-time cost of migrating before committing to either.
Formalizing decisions like this across your estate? Our free EOL policy template is a ready-to-adopt policy with risk tiers, remediation SLAs, and audit mapping — no signup, free to use and share.
Extended Support Options
If you cannot migrate immediately, extended support vendors provide continued security patches for EOL Apache Pulsar versions. This is a bridge, not a permanent solution — plan your migration in parallel.
Apache Pulsar has 12 versions past end of life — security patches have stopped, but CVE disclosures haven't. Extended support past the official date exists for many products in this position — whether it exists for Apache Pulsar is exactly what we check. Tell us where to reach you and we'll reply with matched options and pricing guidance — or an honest "no vendor covers this."