True, but many of the "modern C++" stuff like RAII, type safe strings, arrays, collections were already possible in C++ compilers for MS-DOS for example, it was a matter of actually using them.
Not sure which managed languages you mean, those that I use also provide the option to compile to native code just like Object Pascal, if I wish to do so.
The change isn't as marked as say perl5 and perl6 but it is still huge.
I've no dog in either fight though, I moved to managed languages a long time ago (Object Pascal was the last compiled language I used in anger).