ArabBible for Mac runs on Apple's newest operating system: Tahoe (26.2), as well as on older versions:  Sequoia (macOS 15), Sonoma (macOS 14), Ventura (macOS 13), Monterey (macOS 12), Big Sur (macOS 11), Catalina (macOS 10.15), and Mojave (macOS 10.14). And remember, once you purchase ArabBible, updates are always free!