revert to previous version

I installed the upgrades on Redhat Linux and that caused incompatibility issues with some software that I was previously using. The major update was upgrade from Linux 6.5 to 7, but there were several other packages also installed..

I, accidentally, did not create a “Snapshot” before the upgrade. However, I was able to identify all the packages that were upgraded along with the kernel. So, is it possible to go back to the previous configuration (kernel version and all packages)?

Thanks,
Nikhil