This is very similar to what Microsoft is currently doing to its Windows operating system itself. When Windows 11 first came out, it officially could not be installed on a system without TPM 2.0 support. Although there is a modification that permitted installation of that OS on some older PCs, the next major servicing update will completely block most PCs released prior to 2009 from ever having Windows 11 installed because they lack certain CPU hardware features that the OS installation and operation now requires. As for your Mac Pro, it is just about obsolete: Intel had completely discontinued all support and servicing for the 2013 Mac Pros' CPUs in 2020, while the AMD FirePro GPU support has virtually ended in June 2021. Plus, the 2013 Mac Pros will become depreciated to "vintage" support status this coming December. And already, you officially cannot update its macOS beyond Monterey, which technically is the absolute oldest version of macOS that Premiere Pro 2024 supports (subject to minimum hardware requirements, of course).
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