Still, ANSI C89 is still being "developed" in the sense modern optimizing compilers still improve the state of the art and their STD (glibc/musl) still supports

Still, ANSI C89 is still being "developed" in the sense modern optimizing compilers still improve the state of the art and their STD (glibc/musl) still supports them as primary targets for development (rather than the newer C99/C11). The same is true for Fortran and COBOL. Both are actively being developed as programming languages. Python2 is both a framework (extended std) and language, so the line is blurry. I would even say that Python2, as a language/runtime, has not been under development since quite a while meanwhile C89 development is still going full speed.