Adobe Illustrator CS6 version 16.2.0 was a significant update released for Creative Cloud (subscription) users, primarily adding support for High DPI (Retina) displays and various performance improvements. Key Version Details
If you cannot afford a subscription:
Since this specific release name is often associated with archived software or repackages, it is important to keep the instructions clear and the formatting clean. adobe illustrator cs6 1620 3264 bit chingliu fixed
CS6 is increasingly unstable on high-resolution displays (4K/5K) and modern hardware. Legal/Ethical: Adobe Illustrator CS6 version 16