JetBrains ships Rider 2026.3 with its Air agentic layer built in

JetBrains released Rider 2026.3 on November 10, 2026, bringing its Air agentic layer directly into the IDE, according to the Rider 2026.3 Release announcement. The update lets developers direct, orchestrate and verify AI agents from within the editor, alongside new .NET 11 and C# 15 support.

What's new in Rider 2026.3

• Air lets developers direct, orchestrate and verify AI agents from within the IDE.
• A new debugging-code skill gives AI agents access to runtime state from an active debug session.
• Database agent skills, which first shipped in DataGrip 2026.2, now work with .NET project configurations in Rider.
• AI agents can execute tests through the Rider MCP server.
• Rider can copy local project configuration into new Git worktrees to support parallel agent workflows and code reviews.
• The release also adds .NET 11 and C# 15 support plus debugging and performance improvements.

What it means for AI-assisted development

The integration puts JetBrains' Air agent-orchestration layer directly into a major IDE with concrete new agent skills, marking a meaningful step beyond the governance-only Air release from October. By giving agents visibility into debug-session state, database configurations and test execution, Rider moves agent collaboration from the IDE's edges into its core workflows, while Git worktree copying lets teams run multiple agents on the same project in parallel without conflicting configurations.

Sources

• Rider 2026.3 Release (JetBrains, November 10, 2026, official)

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