About this event
Mainframe specialists, application developers and architects meet at Clarion Hotel Oslo Airport in Gardermoen to exchange practical experience with CICS, Db2, IMS, infrastructure and application development. The 2026 edition included OpenTelemetry tracing, Db2 performance and auditing, Zowe tooling, VS Code extensions and application modernization. Sessions are generally in English, with some user contributions in native languages. Participants are expected to represent GSE members or hold individual membership; newcomers can attend to learn about the organization.