Supported Distributions
Amazon Linux 1 & 2, Debian 7, 8, 9 & 10, CentOS 6, 6 Plus, 7, 7 Plus, Ubuntu 14.04 LTS, 16.04 LTS, 18.04 LTS & 20.04 LTS, CloudLinux OS 6, 6 Hybrid, 7 & 8, RHEL 6, 7 & 8, OpenVZ & Virtuozzo, Proxmox VE 2.x, 3.x & 4.x, Xen4CentOS 6 & 7, Oracle UEK 3, 4 & 5, Oracle Enterprise Linux 6, 7 & 8, Yocto, Ubuntu Core
RHEL (No support for RHEL 5 and 6), Ubuntu, Debian, Gentoo
Supports kernels older than 3.10
Yes
No
24/7 support
Yes, online 24/7/365 Live chat support for premium versions
Yes
Available for new clients
Yes
Only for Redhat Linux
Pricing
From $2.25-$3.95 per month per server
Available on a Premium support subscription for $1299 per year
Trial
Free 30-day trial on all servers, POC available for large enterprise
No
Patchset distribution
Single patchset for all patches
No distribution channel, patches are separate kernel modules
Patch size (how big is the patch)
Smaller size
Bigger size
32bit support
Custom
No
Roll-back functionality
Yes, rebootless
Yes
Major vulnerability patch release timing
Often before or shortly after base distribution
None provided
Glibc patching
Yes, in KernelCare+ package
No
OpenSSL patching
Yes, in KernelCare+ package
No
QEMU patching
Coming soon
No
Binary patches for known vulnerabilities
Yes
No
API
Yes
No
Works behind firewall
Yes
NA
Can be used to generate your own patches
Custom/on request
Yes
Commercial
Yes
Yes & open source
64bit support
Yes
Yes
Custom patches
Yes
Yes / self-made
Security updates for IoT Devices
Yes
No

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Ksplice is a registered trademark of Oracle International Corporation and/or its affiliates. Other names may be trademarks of their respective owners.
Kpatch is a registered trademark of Red Hat, Inc.
Canonical Livepatch Service is a registered trademark of Canonical Ltd.

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