If you have this version on an old iMac or Windows 10 tower, treat it with respect. You are holding a classic.
: Adobe's official documentation for this specific version (12.0) highlights improvements in product stability, bug fixes (particularly in version 12.1), and new UI features like the updated "New Document" dialog box. Complete Guide to What's New : A comprehensive InDesign Features Guidebook Adobe InDesign CC 2017 -12.0.0.81-