On 29 January 2019, the Eclipse Foundation released GlassFish 5.1. This release is technically identical to Oracle's GlassFish 5.0 but is fully build from the source code that Oracle transferred to the Eclipse Foundation and which was subsequently relicensed to EPL. Like GlassFish 5.0, 5.1 is Java EE 8 certified, but does not have any RI status. The main goal of this release is to prove that all source code has been transferred and can indeed be built into a fully compliant product.