CIQ Launches C3 — A Free and Open Compatibility Catalog for Rocky Linux and AI Infrastructure
Data Infrastructure / Infrastructure Management | 4 min read
CIQ, the founding support and services partner of Rocky Linux, has announced C3 — the CIQ Compatibility Catalog — a free, publicly accessible resource providing a single, authoritative destination for the Rocky Linux ecosystem to verify and publish hardware, software, and AI infrastructure compatibility. Available now at c3.ciq.com, C3 covers compatibility with Rocky Linux, RLC Pro, RLC Pro AI, and RLC Pro Hardened — enabling anyone from hardware vendors, ISVs, and AI platform providers to developers, hobbyists, and community contributors to confirm that their stack is specifically validated for these distributions, not just for a generic Enterprise Linux baseline.
"Before you purchase your hardware, you need to know your operating system supports it. C3 gives the entire ecosystem a fast, low-friction way to answer it — starting with Community Compatibility at no cost, and scaling to CIQ Certified for those who need the highest level of assurance."
— Arthur Tyde, SVP of Business Development, CIQ and Board Chair, Open Enterprise Linux Association (OpenELA)
Three Tiers of Compatibility Assurance
C3 is structured around three levels of compatibility assurance, designed to serve the full spectrum of ecosystem participants — from community contributors who want a fast, low-cost path to publication, to enterprise and regulated-industry organisations that require formal certification. Community Compatibility is the entry point: open to anyone at no cost, where vendors self-attest to compatibility and publish their findings to the public catalog. Vendor Verified provides a structured validation path for ISVs, hardware vendors, and AI platform providers that need a higher level of documented assurance — a more credible signal for enterprise procurement teams evaluating technology standardisation decisions. CIQ Certified is the highest tier, for organisations and vendors requiring formal certification — relevant for regulated industries, critical infrastructure, defence-adjacent workloads, and security-intensive environments where the cryptographic posture and compliance position of the OS is subject to audit.
Why C3 Matters: The AI and HPC Infrastructure Context
Rocky Linux has become one of the most widely deployed Enterprise Linux distributions in the world — with more than 2.75 million actively deployed instances globally — and CIQ's RLC Pro portfolio extends that foundation well beyond a standard distribution. RLC Pro provides long-term support, FIPS 140-3 validated packages, indemnification, and direct engineering bug fixes. RLC Pro AI is built for AI and HPC workloads that demand throughput and GPU optimisation, powered by the CIQ Linux Kernel (CLK), an enterprise-grade kernel built directly on upstream Long Term branches from kernel.org to ensure modern AI hardware — high-density GPU nodes, custom accelerators, ARM-based inference hardware — receives full hardware enablement from day one. RLC Pro Hardened targets security-intensive environments where post-quantum cryptography, FIPS compliance, and audit-grade cryptographic posture are requirements. For each of these products, the compatibility question is specific — and C3 provides the answer for each, per product, with the appropriate level of verification.
Who C3 Serves and How
C3 is designed to remove a specific, recurring friction point across four key constituencies. For enterprise IT and procurement teams, it provides a single, vendor-validated reference before standardising on RLC Pro for general or AI infrastructure workloads — enabling budget approval processes to proceed with confidence. For ISVs, it creates a fast path from "we support it informally" to a published compatibility record, starting with self-attestation and scaling to formal verification. For AI platform and tooling vendors — MLOps tools, vector databases, model serving frameworks, data pipeline infrastructure — a C3 listing signals readiness for serious enterprise and HPC deployment, removing a real objection from enterprise sales cycles. For hardware vendors deploying non-standard configurations — high-density GPU nodes, HPC clusters, ARM-based inference hardware, embedded industrial platforms — C3 is where validated OS compatibility is documented and made discoverable for the next team facing the same deployment challenge. CIQ's broader infrastructure portfolio — including Ascender Pro for IT automation, Fuzzball for cloud HPC orchestration, Warewulf Pro for cluster provisioning, and Apptainer, the leading container system for HPC — completes the stack that C3 validates within.
Key Takeaways
- • CIQ has launched C3 (CIQ Compatibility Catalog) at c3.ciq.com — a free, publicly accessible catalog where hardware vendors, ISVs, AI platform providers, and community contributors can verify and publish compatibility with Rocky Linux, RLC Pro, RLC Pro AI, and RLC Pro Hardened.
- • Three compatibility tiers: Community Compatibility (free, self-attestation, open to all); Vendor Verified (structured validation for ISVs, hardware vendors, and AI platform providers); CIQ Certified (formal certification for regulated industries, critical infrastructure, and security-intensive environments).
- • Rocky Linux has 2.75M+ actively deployed instances globally. CIQ's RLC Pro portfolio — RLC Pro (long-term support, FIPS 140-3, indemnification), RLC Pro AI (GPU-optimised, CIQ Linux Kernel on upstream LT branches), and RLC Pro Hardened (post-quantum cryptography, audit-grade security) — extends that foundation for enterprise, government, research, and supercomputing deployments.
- • C3 directly addresses the pre-procurement compatibility question that stalls enterprise standardisation decisions — providing a single, authoritative, vendor-validated answer for each specific RLC Pro product, not just a generic Enterprise Linux compatibility claim.
- • For AI platform vendors (MLOps tools, vector databases, model serving frameworks) and hardware vendors deploying non-standard GPU, HPC, and ARM inference configurations, a C3 listing removes a real sales cycle objection and signals readiness for serious enterprise and high-performance computing deployment environments.