If this sort of stance seems risible to you, you probably shouldn’t be using CentOS. This is what distinguishes a “stable” type of OS from a “bleeding edge” one.
When a version of a software has been released 20 years ago, that doesn´t mean it´s more stable than a version of that software which is being released today.
Not "software", Warren said "OS" - it's the whole ecosystem that is more stable if the versions of the software that's within it are kept consistent.
Of course, you can consider "never change the version of the software" as something making for a stable OS. But what about the bug fixes?
Critical bug fixes are back ported, if appropriate, into the version of the software packaged with the OS - that is the point of the commitment by RH to support the OS.
The software has been written with perl 5.20.1, which is already rather old.
As far as I can see it hadn't been released when RHEL7 was released, so there's no chance of it being the default version.
As others have said, if you need bang up-to-date versions of software, then RHEL/CentOS is not for you.
P.