May 24, 2018 (v6.6.300). A hotfix (v6.6.300.1) followed in June 2018 to address initial bugs.
macOS Sierra (10.12) through macOS Sonoma (14). ESET Cyber Security Pro 6.6.300.1
Transitioned to support 64-bit architecture only . May 24, 2018 (v6
After November 18, 2025, the application will no longer download module updates, will show a red error status, and will become inactive against new threats. 2. Key Features (Version 6.6.300.1) will show a red error status
Required 300 MB of RAM and 200 MB of free disk space. 4. Performance and Independent Testing
Intel 64-bit and Apple Silicon (M1, M2, M3). Note that older builds like 6.6 originally prioritized Intel 64-bit during their 2018 launch.
The 6.6.x branch introduced critical architectural changes and modern features: