Version 12.1, often referred to as the , introduced several refinements to the core user experience:
This specific build was designed for modern (at the time) 64-bit environments. Note that Adobe officially supports only the latest two versions of its software. Adobe InDesign CC 2017 12.1.0.56
Advanced OpenType features like fractions, ligatures, and stylistic sets are more accessible via a contextual "O" badge that appears under selected text. Version 12