2002 7z (2025)

It used Unicode for filenames from the start, ensuring compatibility across different language systems—a feature not standard in many older archivers.

Even in 2002, it was designed to handle massive archives, theoretically up to 16 exbibytes (2^64 bytes). Historical Context 2002 7z

This feature allowed multiple files of a similar type to be treated as a single data stream, drastically improving efficiency for groups of small files. It used Unicode for filenames from the start,

While 7-Zip has evolved, the core features that defined the 7z format during its early 2000s rise include: 2002 7z