DataNucleus provides Open Source products, and you can freely download any release of DataNucleus, together with the associated source code. DataNucleus downloads are subject to the Apache 2 License. Note that DataNucleus software versioning uses the versioning strategy defined here. We hope that you are successful in your use of DataNucleus, and if you have any problems or queries, please contact us using Groups.IO or Gitter. Be aware that we don’t have much time for this free support so you could make a donation to further development and pay for our time providing support.
The first thing to note is that all DataNucleus releases are "stable", in that they all pass all DataNucleus tests and the relevant TCKs, so any referral to some "stable branch" is a concept for other projects; the whole point of TDD is to guarantee stability. The principal DataNucleus releases are :-
DataNucleus AccessPlatform ZIP file : A zip of all DataNucleus plugin jars for a particular datastore and, optionally, jars for key dependencies. You can also check the dependencies for v5.2 and v5.1 separately if you wish. The zip is available from our SourceForge project home page.
DataNucleus Plugin JARs (individual) : DataNucleus products are made up of a selection of plugins, and each plugin is also an OSGi bundle. You can download plugins individually, if you wish, as they are released. Available from the Maven Central repository.
DataNucleus Eclipse Plugin : The Eclipse plugin provides enhancement of classes and the opportunity to manage the database schema. You can download this plugin by adding the DataNucleus "Eclipse Update" site of https://www.datanucleus.org/downloads/eclipse-update to your Eclipse configuration.
DataNucleus Samples : There are various samples of code for use with DataNucleus available, including the source files from the tutorial. Available from SourceForge for easy download, with the source code projects housed on GitHub for JDO and JPA.