. If your hardware is older, such as pre-2016 Macs or early Intel/AMD chips, you may be "out of luck" with the latest updates and must rely on legacy builds.
Note: CS6 won’t install on modern macOS 10.15+ without workarounds. adobe premiere pro old version
Perhaps the biggest reason of all. Before 2013, Adobe sold Premiere Pro via a perpetual license (CS6). You paid once, and you owned it forever. When Adobe switched to the Creative Cloud subscription model, thousands of users refused to switch. Today, many freelancers and small studios still run because they refuse to pay $20–$50 per month for software they used to buy outright. Perhaps the biggest reason of all
—projects saved in newer versions cannot be opened in older ones. To address this, you can develop a "Version Downgrader" feature as a custom UXP plugin When Adobe switched to the Creative Cloud subscription