linux – rhel + upgrade individual rpm’s from rhel 7.1 to rhel 7.7 or batch upgrade of rpms

We have rhel 7.1 version server , with local repositories of rhel 7.1 ( with rpms’ from rhel 7.1 )

We want to replace the local repository with rpm’s of rhel 7.7

so we intend to Remove the local repo of 7.1 as

rm -rf /var/RHEL7.1

and create new repo for 7.7 as

mkdir /var/RHEL7.7 

and push to /var/RHEL7.7/Packages all rpm’s that related to rhel 7.7

and replace the repo conf as

Example

/etc/yum.repo.d/rhel7.1.repo

To

/etc/yum.repo.d/rhel7.7.repo

So every yum installor yum update , will point to the repository of rpms from rhel 7.7 ( /etc/yum.repo.d/rhel7.7 )

We not sure if we can upgrade each rpm from rhel 7.1 to rhel 7.7 , so I want to ask the forum here , if this is possible and update of every rpm from rhel 7.1 to 7.7 can be done without problem

so dose upgrade of individual rpm’s from rhel 7.1 to rhel 7.6 or batch of rpm cam be risk or with conflict?