OJS Versions
Open Journal Systems Version Status
A reference for which OJS branches are current, which are supported, and which need an upgrade plan. Verified against official PKP release information as of 2026-07-23.
| Branch | Latest Patch | Release Date | Support Status | Official Release Page |
|---|---|---|---|---|
| OJS 3.5 | 3.5.0-5 | 2026-06-30 | Current LTS release | PKP release page |
| OJS 3.4 | 3.4.0-10 | 2025-11-21 | Supported | PKP release page |
| OJS 3.3 | 3.3.0-22 | — | Supported until at least 2027-01-01 | PKP release page |
Last verified 2026-07-23. OJS release cadence and end-of-life dates are set by the Public Knowledge Project (PKP) — always confirm against the official PKP release notes before planning an upgrade.
Running an older, supported version?
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Unsupported versions no longer receive security patches. We can audit compatibility and plan a staged upgrade path.
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