Only version 2023.8 and newer, and specific Long-Term Maintenance (LTM) versions like 2022.12.5 and 2021.12.10, remain available. How to Access Avid Media Composer 8.4.5
Check the My Products section of your account. If you previously registered a perpetual license or an active subscription during that era, it may still appear in your personal download list, though this is not guaranteed after the 2023 purge. avid media composer 8.4.5 download
No longer available on the official Avid Download Center. Only version 2023