Ehhhhh. The code is the same, yes. The "binaries" are not, necessarily. The build environment isn't exactly the same and there have been bugs experienced in Ce

Ehhhhh. The code is the same, yes. The "binaries" are not, necessarily. The build environment isn't exactly the same and there have been bugs experienced in CentOS that weren't in RHEL and vice versa. So it was never 100% compatible, more like 99.5%. The exceptions are rare edge cases but they do exist.