CentOS Stream Knowledge Patch

Claude's baseline knowledge covers CentOS Stream 9. This skill provides changes in CentOS Stream 10 "Coughlan" (December 2024).

Breaking Changes Quick Reference

Change	Impact	Details
x86_64_v3 minimum	Pre-Haswell/Excavator CPUs unsupported	centos10-changes
Xorg server removed	Wayland-only; Xwayland for legacy X11 apps	centos10-changes
Redis -> Valkey	Package and CLI renames	centos10-changes
Desktop apps removed	GIMP, LibreOffice, Inkscape via Flatpak/EPEL	centos10-changes
Modularity removed	Traditional RPMs only	centos10-changes

CentOS Stream 10 Overview

Released December 2024. Lifecycle until ~2030 (RHEL 10 Full Support). Codename "Coughlan".

Architectures

• AMD/Intel 64-bit: now x86_64_v3 (requires AVX2, BMI2, FMA — Haswell/Excavator or newer)
• ARM 64-bit (ARMv8.0-A)
• IBM Power (POWER9)
• IBM Z (z14)

Check CPU support: ld.so --help

Xorg Server Removed

xorg-x11-server-Xorg no longer included. Wayland is the only display server. xorg-x11-server-Xwayland available for legacy X11 application compatibility.

Desktop Applications Removed

GIMP, LibreOffice, and Inkscape removed from repositories. Install via Flatpak from Flathub or request in EPEL.

Redis Replaced by Valkey

Redis removed due to license change (BSD-3 -> RSALv2/SSPLv1). Valkey 7.2 is the API-compatible, BSD-licensed replacement.

Modularity Removed

No longer uses modularity system for alternative package versions. Traditional non-modular RPM packages used instead. Alternative versions expected to be added over time as standard AppStream packages.

Repositories

Same structure: BaseOS, AppStream, CRB (disabled by default). DNF 4.20, RPM 4.19.

Key Package Versions

Category	Package	Version
Kernel	Linux	6.12
Languages	Python	3.12
	GCC	14
	Go	1.23
	Rust	1.82
	LLVM	19
	Node.js	22
	PHP	8.3
	Ruby	3.3
	OpenJDK	21
Databases	PostgreSQL	16
	MariaDB	10.11
	MySQL	8.4
	Valkey	7.2
Web	Apache	2.4.62
	nginx	1.26
Desktop	GNOME	47
	Qt	6.7

Reference Files

File	Contents
centos10-changes.md	Full details on CentOS Stream 10 changes