EULYNX is an European initiative by 12 Infrastructure Managers to standardise interfaces and elements of the signalling systems. The first phase of the project did provide a full set of specifications. The project was started spring 2014, with a three year lifespan for this stage. After three years the project organization has evolved into a standing organization for standardisation of interfaces, based on a full baseline, with the publication on 15 December 2017 of Baseline 2. The EULYNX Consortium welcomes any initiative from other entities in the sector to improve its standards.