Equinox is an implementation of the OSGi R4 core framework specification, a set of bundles that implement various optional OSGi services and other infrastructure for running OSGi-based systems.
More generally, the goal of the Equinox project is to be a first class OSGi community and foster the vision of Eclipse as a landscape of bundles. As part of this, it is responsible for developing and delivering the OSGi framework implementation used for all of Eclipse. In addition. the project is open to:
As a peer of the Platform, JDT and PDE projects, the Equinox OSGi code is managed by the Eclipse PMC and ships with the Eclipse project major releases. The various other bundles developed here may ship independently and on different schedules.