Version 16.2.0 is specifically a critical update for who chose to continue using the CS6 version. It provides vital security patches and performance stability that the original 16.0 launch version lacked.
Native 64-bit support for both Windows and macOS. LINK Download Adobe Illustrator CS6 16.2.0 -32-64 Bit
The 16.2.0 update focused on refining the breakthrough features introduced in the initial CS6 launch: Illustrator (CS6) - Adobe Security Bulletin Version 16
2012 (Main version) with updates through 2014. LINK Download Adobe Illustrator CS6 16.2.0 -32-64 Bit