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RedHat Main Version Changes
Whats new in RHEL 7
- Kernel: 3.10.x (Maipo)
- Init System: systemd (previous System V) + Unit files
- Default file system: XFS, BTRFS deprecated
- Firewall: iptables
- Virtualization: Docker
- RPM 4.11
- Python 2.7.x
- PHP 5.4
- Perl 5.x
Whats new in RHEL 8
- Kernel: 4.18.x (Ootpa)
- Volume managing: Stratis
- Network: NetworkManager
- Firewall: nftables
- Packaging: DNF (compatibility for YUM)
- Groups: nfsnobody deprecated (⇒ nobody)
- Virtualization: Podman
- MySQL 8 / MariaDB 10.3
- PostgreSQL 10 or 9.6
- Cockpit default install
- RPM 4.14
- Python 3.x
- PHP 7.2
- Perl
Whats new in RHEL 9
- Firewall: nftables