This document reports on the current state of core-services release, in particular the software underlying each service. This report, NEANIAS deliverable 6.3, comes out right after the first core-services release, deliverable 6.2. Services are the way NEANIAS delivers functionalities within its systems architecture, services are decoupled functionalities composed by software and documentation. Services interact with each other in order to exchange data and provide the user some combined, higher-level functionality. Core-services are fundamental functionalities laying the ground for the thematic services. Core-services address functionalities such as user authentication, processing infrastructure, data archives; Services that will be consumed by the thematics which are then able to focus specifically on their role on science products. A released service provides a point-of-access, an interface through which nteracts with other services and documentation explaining how to use it. Documentation, for instance, of all NEANIAS services is organized under NEANIAS Docs service at https://docs.neanias.eu/. Services reported here have gone through the first release round, most services have integrated to NEANIAS authentication system service, the documentation workflow, and integrated with GARR infrastructure services. As expected, this first core-services milestone uncovered some gaps in the services deployment stack which are being addressed for the next milestone, where operational cloud prototypes are being deployed.