Software
Turning to the segments, Software revenue grew nearly six percent, in line with Software’s mid-single digit model. We had growth in both Hybrid Platform & Solutions and Transaction Processing. This performance captures the benefits of our growing recurring revenue stream, which is about 80 percent of annual software revenue – with continued strong renewal rates. This, together with growth in software transactions this quarter, demonstrates clients’ commitment to our hybrid cloud and AI platforms.
In Hybrid Platform & Solutions, revenue was up five percent, fueled by growth across all business areas. We continue to see client demand for broad capabilities across Red Hat, Automation, Data & AI and Security. Red Hat revenue grew 11 percent, with growth across all major offerings. We had particular strength in our hybrid cloud platform, OpenShift, and Ansible, our IT automation solution. Both offerings also continued to take market share this quarter. Automation revenue was up two percent, driven by Integration and Application Servers, given client demand for improved IT performance and cost. In Data & AI, revenue grew three percent, reflecting growth across Data Management, Business Analytics and Asset & Supply Chain Management. Many of these offerings, like DB2, serve as the underpinnings for modern AI and mission-critical workloads. Security revenue was up two percent, with growth across security for hybrid cloud, which includes both identity and threat management, and security for data. Bringing this all together, our Hybrid Platform & Solutions ARR is now at thirteen-and-a-half billion dollars.
In Transaction Processing, revenue grew six-and-a-half percent. This software remains core to our clients’ hybrid cloud strategies. The strong performance of the last couple of zSystems cycles drove significant