Apache Pulsar 4.2 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Supported
Apache Pulsar 4.2 is actively supported. It reaches end of life on 24 Sept 2026.
46 days of security support left
4.2.4 latest release
75% of this branch's supported lifetime has elapsed — 24 Mar 2026 → 24 Sept 2026.
Support timeline
Official dates from the Apache Pulsar release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 24 Mar 2026 | — |
| End of life (scheduled) | 24 Sept 2026 | in 46 days |
| Extended support ends | 24 Sept 2026 | 46 days left |
| Latest release | 4.2.4 · 3 Aug 2026 | current |
How much runway a newer branch buys
Apache Pulsar 4.2 is the newest branch — this is the longest runway currently available.
| Branch | End of life | Days left | vs 4.2 |
|---|---|---|---|
| Apache Pulsar 4.2 | 24 Sept 2026 | 46 | this branch |
| Apache Pulsar 4.0 | 21 Oct 2026 | 73 | +27 days |
Frequently asked questions
When does Apache Pulsar 4.2 reach end of life?
Apache Pulsar 4.2 reaches end of life on 24 Sept 2026 — 46 days from now. After that date it receives no security fixes.
Is Apache Pulsar 4.2 still supported?
Yes. Apache Pulsar 4.2 is currently maintained. Latest release: 4.2.4, published 3 Aug 2026.
What happens when Apache Pulsar 4.2 reaches end of life?
Security fixes stop. After 24 Sept 2026 this branch receives no further updates under standard support, though extended support runs to 24 Sept 2026.
How long do I have to upgrade from Apache Pulsar 4.2?
46 days. This is already the newest branch, so this is the longest runway currently available.