Red Hat expands its open source leadership with OpenShift 4.20.
Red Hat has announced the general availability of OpenShift 4.20 at KubeCon + CloudNativeCon 2025 Americas, marking a major milestone in open source hybrid cloud innovation. Powered by Kubernetes, the new release strengthens Red Hat’s goal to unite enterprise IT across data centres, public clouds, and edge environments.
OpenShift 4.20 continues Red Hat’s open source mission of transparency, collaboration, and scalability, combining enhanced security, accelerated AI performance, and advanced virtualisation. Designed to address modern enterprise demands, the platform delivers greater digital sovereignty, giving organisations control over where applications and data reside.
Security upgrades include initial support for post-quantum cryptography (PQC) algorithms for mTLS, providing long-term cryptographic protection for critical communications. The release also extends security tooling with Red Hat Advanced Cluster Security 4.9, enhanced Trusted Artifact Signer, and Trusted Profile Analyzer. A Zero Trust Workload Identity Manager is planned later this year, enabling identity attestation for machines and humans across federated systems.
For AI workloads, the LeaderWorkerSet (LWS) API simplifies orchestration and scaling, while Image Volume Source allows new models to be integrated in minutes. Developers gain additional flexibility with Model Context Protocol (MCP), which supports cluster management through Visual Studio Code.
“With Red Hat OpenShift 4.20, we are delivering a foundation that not only keeps pace with enterprise change but helps our customers lead it,” said Mike Barrett, Vice President and General Manager, Hybrid Cloud Platforms, Red Hat.
