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Apache Jackrabbit: Board Report December 2022


The Apache Jackrabbit™ content repository is a fully conforming implementation of the Content Repository for Java™ Technology API (JCR, specified in JSR 170 and 283). The Jackrabbit content repository is stable, largely feature complete and actively being maintained.

Jackrabbit Oak is an effort to implement a scalable and performant hierarchical content repository as a modern successor to the Apache Jackrabbit content repository. It is targeted for use as the foundation of modern world-class websites and other demanding content applications. In contrast to its predecessor, Oak does not implement all optional features from the JSR specifications, and it is not a reference implementation.


There are no issues requiring board attention at this time.

Membership Data:

Apache Jackrabbit was founded 2006-03-15 (17 years ago) There are currently 58 committers and 58 PMC members in this project. The Committer-to-PMC ratio is 1:1.

Community changes, past quarter:

  • No new PMC members. Last addition was Joerg Hoh on 2022-07-01.
  • No new committers. Last addition was Joerg Hoh on 2022-07-01.

Project Activity:

Apache Jackrabbit Oak receives most attention nowadays. All maintenance branches and the main development branch are continuously seeing moderate to high activity.

Apache Jackrabbit itself is mostly in maintenance mode with most of the work going into bug fixing and tooling. New features are mainly driven by dependencies from Jackrabbit Oak.

Discussion started to require Java 11 as a minimum version, because is it getting more difficult to build and run Apache Jackrabbit with Java 8.

There is an increased interest in updating the Guava dependency. Unfortunately some Guava classes were used in OSGi packages exported by Jackrabbit. This means an update of Guava in Jackrabbit becomes a breaking change and must be done carefully. The plan is also to hide the Guava dependency from Jackrabbit consumers, so we can more easily update Guava in the future.

Community Health:

The project is healthy with a continuous stream of traffic mostly on the JIRA issues and GitHub pull requests reflecting the activity of the respective component.

Commit activity is moderate, mirroring the activity on the JIRA issues and the desire of the individual contributors to bring features and improvements in for the next Jackrabbit Oak release.


  • jackrabbit-filevault-3.6.4 was released on 2022-09-19
  • jackrabbit-2.21.13 was released on 2022-10-16
  • jackrabbit-oak-1.22.13 was released on 2022-10-17
  • jackrabbit-2.20.7 was released on 2022-11-10
  • jackrabbit-filevault-3.6.6 was released on 2022-12-05
  • jackrabbit-2.21.14 was released on 2022-12-08

JIRA activity:

  • 150 JIRA tickets created in the last 3 months
  • 144 JIRA tickets closed/resolved in the last 3 months