Reunion 14 is fully compatible with data from earlier versions (5-13), offering a direct upgrade path.
Knowing these details will help me tell you if that version will run or if you need a bridge to the current version. Reunion-0.55-mac.zip
To give you the best advice on that specific file ( Reunion-0.55-mac.zip ), could you let me know: What are you running? Are you trying to open old data from a vintage Mac? Reunion 14 is fully compatible with data from