I don't want a yearly fee for a new version, I want to use the same version that I paid for. Especially when you're developing software for safety applications

I don't want a yearly fee for a new version, I want to use the same version that I paid for. Especially when you're developing software for safety applications, it becomes important to maintain/archive the same tools/compilers/libraries so that rebuilding old code in a few years still produces the exact same binary. So at that point it's not as important to have the newest and shiniest tools, but more important to pay for a tool once and know that it works reliably.