Deliverable D4.1 – “Software Release Procedures and Tools” aims to provide a detailed description of the procedures applied and tools used to manage releases of the gCube System within Work Package 4. GCube System is the software at the basis of all VREs applications, data management services and portals. Given the large size of the gCube system, its high degree of modularity and the number of developers involved in the implementation, a set of procedures that formalize and simplify the integration, test, documentation and distribution of the software have been defined within Work Package 4 (in particular within task T4.4 – “Software Integration and Release”). These procedures allow to coordinate the actions and the timing of the different actors to successfully release new versions of the gCube System respecting time and quality constraints.