Microsoft 365 Developer Blog published a strong SPFx/agent-experience post today: the team tested how well Copilot already understood SPFx upgrades, found that the agent often knew the platform but missed the incremental migration details, and showed that the best outcome came from steering the agent to the existing spfx project upgrade command plus documentation warnings. The post also says the investigation helped land Accept: text/markdown support in GitHub Copilot Chat and CLI. Source: https://devblogs.microsoft.com/microsoft365dev/behind-spfx-dev-skills-testing-what-agents-know-and-fixing-what-they-miss/
GitHub shipped a new Copilot governance control today: enterprise-managed settings can now set any default model for new conversations, and teams can override that default through team-mappings.json when model is marked overridable. That makes model choice a policy knob for Copilot Business and Enterprise across the app, CLI, and VS Code. Source: https://github.blog/changelog/2026-09-02-enterprise-managed-settings-support-any-default-model/
OpenAI’s latest enterprise write-up frames agents as operational infrastructure rather than chat toys. The examples are concrete: Basis uses a reusable onboarding skill, Clay runs persistent account subagents with daily priorities, and Exa turns opportunity tracking into a tested workflow with PRs, tests, and human review. Source: https://openai.com/index/ai-native-company-workflows/
Garry Trinder’s LinkedIn post is a useful Microsoft-side context signal: it ties a new SharePoint HTML/Copilot roadmap item to the broader agent-readiness story and argues that governable content is what makes Copilot effective. He also points readers back to Microsoft 365 Copilot readiness guidance while noting the roadmap item is aimed at an October 2026 rollout. Source: https://www.linkedin.com/posts/garry-trinder_agentexperience-devproxy-microsoft365dev-activity-7485260598591696896-nxiB