The v9r4 release was a significant milestone for Waves. It was one of the early versions to move away from the physical iLok dongle requirement, transitioning to the "Waves License Center" (cloud-based/USB stick licensing).
Many users prefer the older, static interfaces before Waves moved to resizable High-DPI graphics, which can sometimes feel "cluttered." Risks and Compatibility Issues Waves All Plugins Bundle v9r4-peace-out -DJ Vagan-
Downloading legacy software from unverified sources carries the risk of malware or "crackers" embedded in the installer. The Modern Alternative The v9r4 release was a significant milestone for Waves
Older plugins were designed for much weaker computers. If you are running an older machine or a massive session with 100+ tracks, v9 plugins often use significantly less CPU than their V15 counterparts. Waves All Plugins Bundle v9r4-peace-out -DJ Vagan-
The R-Compressor and R-Vox are still industry standards.