The version is a legacy build. For many, it is considered a "golden version" because it was one of the last to support older hardware and specific plugin formats like RTAS (Real-Time AudioSuite), which is essential for users still running older versions of Avid Pro Tools (pre-AAX). Format Compatibility: AU, VST, and RTAS
The "7.0.8" or "6.0.8" versions often cited in searches refer to specific update iterations compatible with older macOS environments. antares autotune efx evo 708 au vst rtas mac osdmg hot
If you are looking for current, compatible versions for modern macOS (Big Sur, Sonoma, or later), Antares has overhauled its lineup: AutoTune Central Software Download Manager The version is a legacy build