I am not sure. I am a c++ programmer. We don't have a sexy new framework every week or something like that. I am not really worried. I suspect that if I wanted to I could write c++ until I retire. I changed jobs some time ago to keep writing c++ instead of being forced into c#. I kind of hate microsoft, that is mainly why. Rust sounds kind of interesting but I just skimmed the manual a bit. In my spare time I program coq instead. Just because it is interesting. I don't have much anxiety.