Claude OTel traces: the Azure Monitor path and Foundry gap
Anthropic's OpenTelemetry trace export went to public beta on 14 October 2026, but Azure Monitor is not a listed destination and Claude in Microsoft Foundry gets client-side SDK spans only. Three Azure paths (Collector on Container Apps, Microsoft OpenTelemetry Distro with managed identity, Agent SDK signals), the Entra-versus-static-header mismatch that forces the design, and the Application Insights cost math for full-content mode.
Azure's 30 September retirements: what stops working
More than ten Azure items retire on 30 September 2026, and the ones that fail silently are more dangerous than the ones that fail loudly: URL ping tests are deleted from your resources and the ContainerLog table stops receiving data, taking alert rules down with them. A triage guide with Resource Graph queries, Sweden Central cost math for standard web tests and Basic Logs, and a checklist for the Functions v3, Service Bus SBMP and 1 October AI service deadlines.