Around after ten years the RHEL 7 support ended in June 2024, after EOL extended the life phase they will provide limited support on this version. So I will recommend using the latest version of RHEL, which is having good EOL time period.
A Red Hat Enterprise Linux 7 Release Candidate will be publicly available for 4 weeks in April 2014. Features in Redhat Enterprise Linux 7 Release candidate include.
(1) Expand Window interoperability capabilities, including integration with Microsoft Active Directory domains.
(2) XFS is the default file system and supports file systems up to 500 TB.
(3) Virtual Machine Migration from RHEL6 to RHE7 without downtime or VM modification.
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