cOS Core: Releases, patches & end-of-life
QMETHODS GmbH

Lifecycle guide for cOS Core from Clavister

All releases, patches, maintenance and support periods at a glance

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📅 Last update on 2026-04-11

What is cOS Core?

Automate product release and end-of-life managementClavister cOS Core is the proprietary and specially hardened operating system that serves as the heart of all Clavister Next-Generation Firewalls. It was built from the ground up for high network performance, security, and stability, running on both the manufacturer"s physical hardware appliances and its virtual firewall solutions. By focusing on security, it offers a minimized attack surface and enables the efficient processing of network traffic and security policies.
 

The entire lifecycle of cOS Core

The following figure shows you the visualised product life cycle of cOS Core. You can see all releases with the latest patch version, the long-term support characteristics (orange flag in the green circle, the periods for version provision, maintenance and support.
cOS Core (Clavister) release, version and end-of-life information
XcOS Core (Clavister) release, version and end-of-life information
Figure: Release, patch and end-of-life cycle of product cOS Core (Clavister)
 

Facts and figures about cOS Core

Product
cOS Core
Vendor
Clavister
Latest version
15.00.04
Number of releases
4
Number of versions
69
Number of unstable versions
1
Number of versions affected by CVE
9
Licence
Commercial
 
 

Questions or interested? Talk to me!


Lukas Böttcher
Lukas Böttcher
Business Development Manager
P:  +49-30-221986-51
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