CentOS Stream knowledge patch

Baseline: CentOS Stream 9. Covered range: CentOS Stream 10.0 and Enterprise Linux 9.8 through 10.2, including major-version adoption guidance.

Reference index

Reference	Topics
Platform, installation, and upgrades	Hardware baseline, lifecycle, Leapp, Anaconda, Kickstart, Image Builder, bootc, Secure Boot, UKIs, EUS, ReaR
Packages, runtimes, and development	Default versions, modules, databases, compilers, libraries, DNF, repositories, RPM specs and signing
Security, identity, and cryptography	AIDE, SSH, crypto policies, LUKS policy, PKCS #11, SELinux, IdM, SSSD, Directory Server, OpenSCAP
Networking	NetworkManager, Nmstate, IPsec, nftables, firewalld, DHCP, routing, DNS, VSOCK, interface migration
Storage, kernel, and hardware	Kernel controls, kdump, live patching, multipath, LVM, Stratis, VDO, XFS, drivers, scheduler changes
Containers and image mode	Podman, Quadlet, bootc, runtime and cgroup migration, registry images, disconnected updates, microVM isolation
Virtualization	libvirt, QEMU, Hyper-V, migration, SCSI reservations, passt, VSOCK, secrets, machine-type removals
Services, HA, observability, and desktop	Cockpit, system roles, Pacemaker, pcs, PCP, web and mail services, printing, GNOME, Flatpak, editors
Project ecosystem	Repository hosting and RDO delivery changes