Apache Pulsar

Apache Pulsar

Server App

Apache Pulsar 4.2 is the newest actively maintained release, currently at patch 4.2.4. 2 of 14 tracked cycles remain supported. The next cycle scheduled to reach end-of-life is 4.2, on September 24, 2026.

Latest version

4.2.4

Aug 3, 2026

Actively maintained cycles

2

of 14 tracked

Total cycles tracked

14

since Jan 15, 2020

Support pattern

How Apache Pulsar has behaved across the cycles tracked here, rather than what its policy documents state. Useful for judging how much runway a version is likely to have before you commit to it.

Typical support window

12 months

median of 14 completed cycles

New cycle roughly every

6 months

median gap between releases

Compared with server app

−2 mo

shorter than the server app median

Next end of life

15 days

Apache Pulsar 4.2

Support windows are getting shorter: the most recent cycles run about 6 months less than the earlier ones.

Computed from release and end-of-life dates tracked for Apache Pulsar. Medians are used rather than averages so one unusually short or long release does not skew the figure. Cycles with no recorded end-of-life date are excluded from the support window.

Release lifecycle

Actively maintainedSecurity support onlyEnd of life
Today
4.2Latest
4.2.4 · Aug 3, 2026
4.1
EOL Mar 8, 2026
4.0
4.0.13 · Aug 3, 2026
3.3
EOL Dec 5, 2024
3.2
EOL Aug 5, 2024
3.1
EOL Feb 10, 2024
3.0
EOL May 2, 2025
2.11
EOL Jan 11, 2024
2.10
EOL Apr 18, 2023
2.9
EOL Dec 20, 2022
2.8
EOL Jun 15, 2022
2.7
EOL Dec 3, 2021
2.6
EOL Jun 17, 2021
2.5
EOL Jan 15, 2021
2020202120222023202420252026

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