The Austrian Transition to Open Access 2 (AT2OA²) project, like its predecessor AT2OA (https://www.at2oa.at/, https://zenodo.org/communities/at2oa), has the primary goal of advancing the transformation from closed to open access (OA) in Austria. AT2OA² comprises the following five sub-projects: SP1 More transformative contracts for Austria, SP2 Austrian Datahub for Open Access Negotiations and Monitoring, SP3 Survey and analysis of publication costs at Austrian universities, SP4 Predatory Publishing, and SP5 Visibility of Open Access publications.