Thank you too, John! You are right that this harms users of old versions. I will not be defending Maxon here, but I think that this is beyond their control because due to the updates on the MacOS and their imposition of more security restrictions on old programs, Maxon has become obligated to do more than just support old versions, It is a matter of radical modifications to make it compatible with Mac updates, and when you make radical modifications to an old version of a program, what you get will only be a new version of the program, and this is what Maxon originally does by releasing a new version every time, you could realize that in this paragraph from the Maxon website.
“Note – It is no longer possible to install Cinema 4D R19 or older under Catalina/Big Sur because the installation programs of R19 or older were 32 Bit applications that Catalina/Big Sur no longer supports.
Note 2 – It is no longer possible to install Cinema 4D R20 under macOS 13 Ventura. MacOS has introduced higher security restrictions for older programs, that prevent the installer from running, especially if you use an Apple Silicon system.
If you have your previous Cinema 4D installed on an older macOS already, you may be able to copy and paste the entire MAXON Folder from the old Applications folder of the old macOS to the new macOS.
We cannot guarantee the stability of older software, working on new hardware architecture than it was designed for.”
I hope this makes sense.
So you will find on Internet forums many people who suffer from problems even with relatively recent releases on the Mac and they are forced every time to seek help from the support team to solve the problem. Mac systems are effective and attractive, but you must always be prepared to use the latest versions of your programs, unlike Windows. Not long ago I needed to use R13 on Windows 10 and it worked perfectly I did not encounter any problems with it after using it for more than two months in a project.