A highly secure and scalable operating system for running mission-critical applications
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IBM® z/OS® delivers security, agile development and high utilization. It maintains application compatibility and runs Linux® on IBM Z® containers on-premises and in hybrid clouds.
Together with IBM z15™, z/OS gives you more performance, data privacy and cyber resiliency.
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z/OS V2.4 and z/OS V2.5
IBM has released a preview announcement of IBM z/OS Version 2 Release 5 (V2.5).
Also, with a continuous delivery model, new z/OS capabilities are available each quarter with no impact to stability, complexity or costs. New z/OS V2.4 capabilities enable you to:
See current announcement
Past announcements (100 KB)
View z/OS Container Extensions
View Cloud Provisioning and Management for z/OS
View z/OS Cloud Broker
View Java for z/OS
View language environment
View Metal C
View IBM SDK for Node.js
View z/OS XML
View Multi-Factor Authentication for z/OS
View JES2 Spool Encryption
View Resource Access Control Facility
View IBM Z Data Privacy for Diagnostics (194 KB)
View z/OS Authorized Code Scanner (3.4 MB)
View z/OS Certificate Authority (PKI)
View z/OS Management Facility (z/OSMF)
View z/OS Software Installation Simplification
View Software Update with z/OSMF
View z/OS Upgrade Workflows
View Capacity Provisioning
View Resource Measurement Facility (RMF)
View IBM z/OS Workload Interaction Correlator
View IBM Workload Manager for z/OS (WLM)
View IBM z/OS Communications Server
View Hardware Configuration Definition (HCD)
View Hardware Configuration Manager (HCM)
View Network File System (NFS)
View Print Services Facility (PSF) and Infoprint Server
View System Display and Search Facility (SDSF)
View z/OS Cloud Storage
“z/OSMF is a key component of our operating system rather than an independent product.”
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Deliver fast, personalized customer services at scale with cutting-edge IBM technology.
Cut dev costs with Z Container Pricing and empower developers with RESTful APIs.
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IBM z/OS Community
IBM z/OS Developer Community
See how enterprise consumption and capacity solutions offer flexibility and savings.
Meet Tailored Fit Pricing
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Announcements (100 KB)
Github for z/OS
New function APARs
Service updates (RSU)
Contact the z/OS team
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