# About AlmaLinux OS Kitten 10

AlmaLinux OS Kitten is the direct upstream for AlmaLinux OS 10, and is the primary point for the AlmaLinux community to engage and influence the future of AlmaLinux OS. Fixes and features land here first and trickle down into AlmaLinux OS as appropriate. It is the integration and collaboration point for AlmaLinux to its upstreams as well, such as CentOS Stream and Fedora.

Currently, AlmaLinux OS Kitten is based on CentOS Stream 10 code and provides a stable preview of AlmaLinux OS 10.

AlmaLinux Kitten also allows anyone who is building from or extending AlmaLinux to engage in our building and release processes and gain a deeper understanding of them.

# Mirrors, ISOs, and Update Frequency

AlmaLinux OS Kitten 10 has its own primary mirror URLs:

Package updates will be released regularly and frequently. ISOs will be rebuilt and published with the latest updates every 3 months.

# Why Kitten?

AlmaLinux OS has used cat names in our code names for our entire existence, and this felt like a perfect extension of that. This OS is the version that will grow up to be the next AlmaLinux OS cat.

# Cloud Images

AlmaLinux provides official AlmaLinux OS Kitten 10 images for various cloud providers.

# Amazon Web Services (AWS)

AlmaLinux OS offers Amazon Machine Images in a number of formats and regions for consumption on AWS. All AlmaLinux OS AMIs are completely free of charge regardless of the deployment channel.

More about AlmaLinux OS images for AWS - AlmaLinux AWS Wiki Page.

# AWS Marketplace

The AlmaLinux OS Foundation's official AlmaLinux OS Kitten 10 images are available via the AWS Marketplace (opens new window).

# Community AMIs

Community AMIs are images that are shared directly by the AlmaLinux OS Foundation for others to utilize directly within their infrastructure. Below is a complete list of currently published AMIs and their corresponding IDs. For purposes of automation and integration into build tools and CI/CD pipelines, this list is also available as a CSV (opens new window) file.

Click to expand AlmaLinux OS Kitten 10 AMIs
Distribution Version Region AMI ID Arch
AlmaLinux OS Kitten 10.20250930.0 af-south-1 ami-07df09aec964d5a21 x86_64
AlmaLinux OS Kitten 10.20250930.0 af-south-1 ami-0a72fb6888ca6b792 aarch64
AlmaLinux OS Kitten 10.20250930.0 ap-east-1 ami-04bea79e8e13fd97a x86_64
AlmaLinux OS Kitten 10.20250930.0 ap-east-1 ami-0bfab09933df573a7 aarch64
AlmaLinux OS Kitten 10.20250930.0 ap-northeast-1 ami-023540f2d609461b2 x86_64
AlmaLinux OS Kitten 10.20250930.0 ap-northeast-1 ami-083c623a5f5964270 aarch64
AlmaLinux OS Kitten 10.20250930.0 ap-northeast-2 ami-0f88ad9b7fe5af40b x86_64
AlmaLinux OS Kitten 10.20250930.0 ap-northeast-2 ami-0d3dce04ee52f3c40 aarch64
AlmaLinux OS Kitten 10.20250930.0 ap-northeast-3 ami-00b39b6574f073edc x86_64
AlmaLinux OS Kitten 10.20250930.0 ap-northeast-3 ami-0668c5ac72af9e93c aarch64
AlmaLinux OS Kitten 10.20250930.0 ap-south-1 ami-00c1e04c6e881b07e x86_64
AlmaLinux OS Kitten 10.20250930.0 ap-south-1 ami-0265d65956e1fbd33 aarch64
AlmaLinux OS Kitten 10.20250930.0 ap-south-2 ami-078096dd86a9fda43 x86_64
AlmaLinux OS Kitten 10.20250930.0 ap-south-2 ami-0b7ffacaefeee8dc7 aarch64
AlmaLinux OS Kitten 10.20250930.0 ap-southeast-1 ami-0a5c6a348a897116d x86_64
AlmaLinux OS Kitten 10.20250930.0 ap-southeast-1 ami-0340f42b7165c9de9 aarch64
AlmaLinux OS Kitten 10.20250930.0 ap-southeast-2 ami-05c648d9b8c84aae2 x86_64
AlmaLinux OS Kitten 10.20250930.0 ap-southeast-2 ami-0ab0bbc2a12f8ea07 aarch64
AlmaLinux OS Kitten 10.20250930.0 ap-southeast-3 ami-0e13dd37da0dd8996 x86_64
AlmaLinux OS Kitten 10.20250930.0 ap-southeast-3 ami-0f4bb60336f807b14 aarch64
AlmaLinux OS Kitten 10.20250930.0 ap-southeast-4 ami-01b397cf932f738f0 x86_64
AlmaLinux OS Kitten 10.20250930.0 ap-southeast-4 ami-07e20e33cde655d5c aarch64
AlmaLinux OS Kitten 10.20250930.0 ap-southeast-5 ami-0e9bda39d369b0d05 x86_64
AlmaLinux OS Kitten 10.20250930.0 ap-southeast-5 ami-008cab0b40a61ea62 aarch64
AlmaLinux OS Kitten 10.20250930.0 ap-southeast-7 ami-0c97403ff9a8664b8 x86_64
AlmaLinux OS Kitten 10.20250930.0 ap-southeast-7 ami-07cc17c357b2b5152 aarch64
AlmaLinux OS Kitten 10.20250930.0 ca-central-1 ami-04b5fa7644456834c x86_64
AlmaLinux OS Kitten 10.20250930.0 ca-central-1 ami-098ab760bca42838a aarch64
AlmaLinux OS Kitten 10.20250930.0 ca-west-1 ami-0530c58b84a7626de x86_64
AlmaLinux OS Kitten 10.20250930.0 ca-west-1 ami-0fb990cfcf97ba09d aarch64
AlmaLinux OS Kitten 10.20250930.0 eu-central-1 ami-0d6c23d866831243d x86_64
AlmaLinux OS Kitten 10.20250930.0 eu-central-1 ami-003953d476f6bcda2 aarch64
AlmaLinux OS Kitten 10.20250930.0 eu-central-2 ami-05cc4f963ba756589 x86_64
AlmaLinux OS Kitten 10.20250930.0 eu-central-2 ami-0193d18000d41cf29 aarch64
AlmaLinux OS Kitten 10.20250930.0 eu-north-1 ami-058c1511f4ec25457 x86_64
AlmaLinux OS Kitten 10.20250930.0 eu-north-1 ami-029483df29e31ae02 aarch64
AlmaLinux OS Kitten 10.20250930.0 eu-south-1 ami-0e268e249d7b6ab3b x86_64
AlmaLinux OS Kitten 10.20250930.0 eu-south-1 ami-002614958d5449a28 aarch64
AlmaLinux OS Kitten 10.20250930.0 eu-south-2 ami-09e1284e69e3b49db x86_64
AlmaLinux OS Kitten 10.20250930.0 eu-south-2 ami-0ad1f749cdbe86a77 aarch64
AlmaLinux OS Kitten 10.20250930.0 eu-west-1 ami-023b46c899eab39c6 x86_64
AlmaLinux OS Kitten 10.20250930.0 eu-west-1 ami-030250dfaf7feea80 aarch64
AlmaLinux OS Kitten 10.20250930.0 eu-west-2 ami-01c2bb1eef74a375b x86_64
AlmaLinux OS Kitten 10.20250930.0 eu-west-2 ami-07b0caa5e29a92dc5 aarch64
AlmaLinux OS Kitten 10.20250930.0 eu-west-3 ami-0eb65f4cbd529bf87 x86_64
AlmaLinux OS Kitten 10.20250930.0 eu-west-3 ami-0545187b1063493ca aarch64
AlmaLinux OS Kitten 10.20250930.0 il-central-1 ami-0feb74195a5218a18 x86_64
AlmaLinux OS Kitten 10.20250930.0 il-central-1 ami-0fd8d2fb5ff6b0624 aarch64
AlmaLinux OS Kitten 10.20250930.0 me-central-1 ami-07edd7794fc892bb6 x86_64
AlmaLinux OS Kitten 10.20250930.0 me-central-1 ami-001dd20ae0e972a37 aarch64
AlmaLinux OS Kitten 10.20250930.0 me-south-1 ami-0db0df6f09ef49f6a x86_64
AlmaLinux OS Kitten 10.20250930.0 me-south-1 ami-096a76c6a905c283d aarch64
AlmaLinux OS Kitten 10.20250930.0 mx-central-1 ami-0a046d78ec7394319 x86_64
AlmaLinux OS Kitten 10.20250930.0 mx-central-1 ami-03e5190bc76095b69 aarch64
AlmaLinux OS Kitten 10.20250930.0 sa-east-1 ami-0aae4bf10ffb13903 x86_64
AlmaLinux OS Kitten 10.20250930.0 sa-east-1 ami-08c1d78a7ec68ee68 aarch64
AlmaLinux OS Kitten 10.20250930.0 us-east-1 ami-068467206beb12bf9 x86_64
AlmaLinux OS Kitten 10.20250930.0 us-east-1 ami-0421362d5453ada33 aarch64
AlmaLinux OS Kitten 10.20250930.0 us-east-2 ami-0383dd728e2c5d602 x86_64
AlmaLinux OS Kitten 10.20250930.0 us-east-2 ami-0c2f98c5508f214dd aarch64
AlmaLinux OS Kitten 10.20250930.0 us-west-1 ami-0a606e5c7e8733e0e x86_64
AlmaLinux OS Kitten 10.20250930.0 us-west-1 ami-0e238b39f8d683e22 aarch64
AlmaLinux OS Kitten 10.20250930.0 us-west-2 ami-0211dc1392d57343c x86_64
AlmaLinux OS Kitten 10.20250930.0 us-west-2 ami-071a4dcfb672d9e29 aarch64

# Generic Cloud

The AlmaLinux OS Generic Cloud images are available from our mirrors (opens new window) and from the AlmaLinux OS Kitten repositories:

AlmaLinux OS Kitten 10 x86_64 (opens new window) aarch64 (opens new window) s390x (opens new window) ppc64le (opens new window) x86_64_v2 (opens new window)

More about AlmaLinux OS images for Generic Cloud - AlmaLinux Generic Cloud Wiki Page.

# Microsoft Azure

AlmaLinux offers AlmaLinux OS Kitten 10 images for Azure across all Azure regions via the Azure Marketplace. Images are deployable via the marketplace, portal and CLI.

More about AlmaLinux OS images for Azure - AlmaLinux Azure Wiki Page.

# OpenNebula

The AlmaLinux OS OpenNebula images are available from our mirrors (opens new window) and from the AlmaLinux OS Kitten repositories:

AlmaLinux OS Kitten 10 x86_64 (opens new window) aarch64 (opens new window) x86_64_v2 (opens new window)

More about AlmaLinux OS images for OpenNebula - AlmaLinux OpenNebula Wiki Page.

# Container Images

AlmaLinux OS provides official OCI, Docker and four fully compatible alternatives for Red Hat Universal Base Images (UBI):

Image Container tag Link to the Repository
Default (Platform) almalinux:10-kitten DockerHub (opens new window)
Minimal (Platform) almalinux:10-kitten-minimal DockerHub (opens new window)

UBI-alternatives

Image Container tag Link to the Repository
Minimal almalinux/10-kitten-minimal - DockerHub (opens new window)
- quay.io (opens new window)
- GitHub Packages (opens new window)
Base almalinux/10-kitten-base - DockerHub (opens new window)
- quay.io (opens new window)
- GitHub Packages (opens new window)
Init almalinux/10-kitten-init - DockerHub (opens new window)
- quay.io (opens new window)
- GitHub Packages (opens new window)
Micro almalinux/10-kitten-micro - DockerHub (opens new window)
- quay.io (opens new window)
- GitHub Packages (opens new window)

More about AlmaLinux OS Container Images - AlmaLinux Containers.

# Live Media

Currently, AlmaLinux builds Live Media images for GNOME, GNOME Mini and KDE options for AlmaLinux OS Kitten 10:

Live Media AlmaLinux OS Kitten 10
GNOME - x86_64 (opens new window)
- x86_64_v2 (opens new window)
- aarch64 (opens new window)
KDE - x86_64 (opens new window)
- x86_64_v2 (opens new window)
- aarch64 (opens new window)

More about AlmaLinux OS Live Media images - AlmaLinux Live Media Page.

# Vagrant Boxes

AlmaLinux provides official AlmaLinux OS Kitten images for Vagrant:

Vagrant Box AlmaLinux OS Kitten 10
Libvirt - x86_64 (opens new window)
- x86_64_v2 (opens new window)
VirtualBox - x86_64 (opens new window)
- x86_64_v2 (opens new window)
Hyper-V - x86_64 (opens new window)
- x86_64_v2 (opens new window)
VMware - x86_64 (opens new window)
- x86_64_v2 (opens new window)

More about AlmaLinux OS images for Vagrant Boxes - AlmaLinux Vagrant Boxes Page.

# Raspberry Pi

AlmaLinux builds standard Raspberry Pi images and images with the GNOME desktop environment:

More about AlmaLinux OS Raspberry Pi images - Raspberry Pi.

# Windows Subsystem for Linux (WSL)

AlmaLinux OS Kitten 10 images are available for installation via WSL CLI tool.

  • Open the command line tool.
  • List all the Linux distributions that are officially available for installation:
    wsl --list --online
    
  • Install AlmaLinux OS Kitten 10:
    wsl --install AlmaLinux-Kitten-10
    
  • Launch AlmaLinux OS to start using it:
    • Open it from the Windows Terminal. Click the small arrow ▾ next to the tab or the “+” icon. You’ll see a dropdown with available WSL distros listed. Click AlmaLinux-Kitten-10. It will open in a new tab, ready to use.
    • Or run the command:
      wsl -d AlmaLinux-Kitten-10
      

More about AlmaLinux for WSL - WSL Page.

# How is AlmaLinux OS Kitten different from CentOS Stream?

CentOS Stream is a product of the CentOS community–it’s the ultimate destination of the CentOS community’s work. AlmaLinux OS Kitten is not a product, it is meant as a vehicle along the journey of development of the next version of AlmaLinux OS.

We are using our freedom here to do a bunch of work in preparation for AlmaLinux OS 10.

# Re-enabling Frame Pointers

Red Hat Enterprise Linux and CentOS Stream disable frame pointers by default. We are re-enabling them with AlmaLinux OS Kitten 10. This enables system-wide real-time tracing and profiling for optimizing the performance of any workload running on AlmaLinux OS.

# AlmaLinux OS Kitten includes an additional build using x86-64-v2

Within the x86-64 architecture, there are specific versions that represent specific CPU feature sets. RHEL was increasing the architecture version baseline to v3, which results in the loss of support for numerous older CPUs(and some newer ones). Both in AlmaLinux OS Kitten 10 e AlmaLinux OS 10, we will follow Red Hat’s decision to ship x86-64-v3 optimized binaries by default, but we will also provide additional x86-64-v2 architecture ONLY for older hardware that doesn’t support modern CPU feature sets.

Please note all 3rd party packages for RHEL10 will be built for x86-64-v3, so AlmaLinux OS Kitten 10 built for x86-64-v2 will only be appropriate in workloads where the default OS package set is enough, or where users will be able to rebuild any additional packages they require for x86-64-v2 architecture themselves. ALESCo is currently weighing the option of rebuilding EPEL for x86-64-v2 users. If you use this version, please let us know (opens new window), so we can make informed decisions about this version in the future.

# Secure Boot

Trusted boot has long been required for bare metal devices, and is also becoming more and more popular in virtualized environments. AlmaLinux OS Kitten 10 supports Secure Boot for Intel/AMD and ARM platforms.

# Adding SPICE

Simple Protocol for Independent Computing Environments (SPICE) has been unsupported since RHEL 9.0. Members of the AlmaLinux OS community have requested we add support back in, so SPICE support is fully re-enabled in AlmaLinux OS Kitten 10 for both server and client applications.

# KVM for IBM POWER

KVM for IBM POWER has also been unsupported since RHEL 9.0. We enable it in the AlmaLinux OS Kitten 10 virtualization stack, so it’s possible to continue using KVM just like it is in AlmaLinux OS 8.

# More hardware supported

Starting with AlmaLinux OS 8.10 and 9.4 we re-enabled support for more than 150 devices that were removed upstream. We will continue that support in AlmaLinux OS Kitten 10, as well as in AlmaLinux OS 10.

# Firefox and Thunderbird in the system repositories

Our upstream decided to remove packaged versions of Firefox and Thunderbird RPM packages from CentOS Stream 10 and RHEL10 in favor of using Flatpak versions of them. To support our community of desktop users, we decided to continue shipping them in AlmaLinux OS Kitten 10 as regular RPM packages.

# Give Feedback and Get Help

Join us in the AlmaLinux OS chat channel (opens new window), mailing lists (opens new window), and forums (opens new window) to share your feedback or ask for any assistance. Please, file your bugs and steps to reproduce them on AlmaLinux Bug Tracker (opens new window).

# Thank you, Image Engine!

This version of AlmaLinux includes desktop backgrounds created by the incredible visual effects folks over at Image Engine (opens new window). We can't thank them enough for their work. They were awesome to work with, and we are so excited to have them as part of the AlmaLinux community.

# Trademarks

CentOS Stream, Red Hat, and Red Hat Enterprise Linux are trademarks or registered trademarks of Red Hat, Inc. or its subsidiaries in the United States and other countries.

Last Updated: 2025-12-01