Harlequin Core Documentation Manuals LDK FAQ (Harlequin Core) Current: General information General information Created Date: 09 Jan, 2023 14:36 Last Modifed Date: 09 Jan, 2023 14:36 Who is this document for? What is LDK? What kinds of license are available with LDK? What are Product Keys and Protection Key IDs? ×