If you are looking specifically for the "17" series (originally released in 2017), key improvements included:
: Recent updates have addressed high-severity vulnerabilities (such as CVE-2025-5518 and CVE-2025-0411) that previously allowed malicious files to bypass Windows security warnings. Significant Updates in Version 17.00 Updates 1 7 zip
: The Linux version now utilizes 2MB "huge pages," which can increase compression speeds by up to 10% for formats like 7z and XZ. If you are looking specifically for the "17"
: A new -spo switch has been introduced to specify path generation modes for output directories during extraction. The latest version of 7-Zip is , released on April 27, 2026
The latest version of 7-Zip is , released on April 27, 2026 . While the software does not feature an automatic update system, manual updates are recommended to access new features and critical security patches. Latest Major Updates (Version 26.01)