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OpenAleph Versions

github.com/openaleph/openaleph

OpenAleph is the actively developed and maintained open source fork of it's discontinued predecessor, Aleph.

5.x

The current versions for OpenAleph, forked off from the 3.x branch (see below)

5.1.0

Released: 2025-11-07

If upgrading from 5.0.x to 5.1.0, a reindex is still required due to:

  • Reduced Elasticsearch ingest and analysis pipeline complexity introduced in 5.0
  • New dedicated Page index for document pages

5.0.0

Released: 2025-09-01

Requires reindexing and upgrading configuration, see upgrading from 3.x or upgrading from 4.x.

4.x

This (discontinued) version line was developed by the original maintainer (OCCRP) and introduced RabbitMQ as a task queue. Upgrading from this version might require manual database migration fixes, see migration notes.

3.x

OpenAleph was forked off from the 3.17 Aleph version. Upgrades from this versions to 5.x is straight forward.