The document summarizes 11 cases from the Court of Justice of the EU related to public procurement law. Key issues addressed include: - Whether a tender of EUR 0.00 can be automatically rejected or requires further assessment. - Whether subcontractors' exclusions can result in the main contractor's automatic exclusion. - The conditions under which in-house contracts are permitted. - Whether software transfers between public authorities fall under cooperation rules. - Whether modifications can be reviewed ex officio after time limits have expired. The Court provided interpretations balancing principles like proportionality, equal treatment, and legal certainty.