An effort to update the CDIO Standards from version 2.1 to 3.0 was started in 2017 (Malmqvist et al., 2017) and further outlined in 2019 (Malmqvist et at., 2019). The aims were to incorporate external changes to the context of engineering education, to address the critique that had been raised against earlier versions of the standards, and to establish an extendable CDIO framework architecture. The work has resulted in that the original twelve CDIO standards, from now on named “core” CDIO standards, will be complemented by “optional” CDIO standards, that codify additional educational best practices that have been developed within the CDIO community in the same format as the original CDIO standards. This paper accounts for the changes made to the core CDIO standards. It includes the full definitions of the CDIO Standards 3.0, including descriptions, rationale and rubrics. The modifications are made to address mainly the following topics: sustainability, digitalization, services and faculty competences.