---
title: "JetBrains .NET Day Online 2026: Watch the Recordings"
description: "JetBrains .NET Day Online 2026 took place on October 7, and all session recordings are now available on YouTube. The keynote by Anastasia Kazakova, Matt Ellis, Matthias Koch, and Mehul Harry introduced JetBrains Air, demonstrating how Rider shares debugging and refactoring skills with agents, and showed that the dottrace-analyze skill raised agent accuracy from 4.7 to 8.1 out of 10. Other sessions covered the Outbox, Inbox, and Saga patterns for distributed systems, C# interceptors enabling Native AOT compatibility, and a refinement-first process for AI development that starts with user stories. Additional talks explored supply chain attack risks through NuGet and MSBuild, modular monoliths as a middle ground between monoliths and microservices, and .NET interoperability across platforms using the C# MCP SDK. The event also featured Microsoft’s open-source SQL MCP Server for database access by language models and a Blazor Data Orchestrator built with .NET Aspire and Azure Container Apps."
---

# JetBrains .NET Day Online 2026: Watch the Recordings

[Jetbrains](https://yomu.fyi/company/jetbrains) · Mehul Harry · Oct 19, 2026

**Type:** Announcement

## Summary

JetBrains .NET Day Online 2026 took place on October 7, and all session recordings are now available on YouTube. The keynote by Anastasia Kazakova, Matt Ellis, Matthias Koch, and Mehul Harry introduced JetBrains Air, demonstrating how Rider shares debugging and refactoring skills with agents, and showed that the dottrace-analyze skill raised agent accuracy from 4.7 to 8.1 out of 10. Other sessions covered the Outbox, Inbox, and Saga patterns for distributed systems, C# interceptors enabling Native AOT compatibility, and a refinement-first process for AI development that starts with user stories. Additional talks explored supply chain attack risks through NuGet and MSBuild, modular monoliths as a middle ground between monoliths and microservices, and .NET interoperability across platforms using the C# MCP SDK. The event also featured Microsoft’s open-source SQL MCP Server for database access by language models and a Blazor Data Orchestrator built with .NET Aspire and Azure Container Apps.

## Context

The post announces that all session recordings from JetBrains .NET Day Online 2026, held on October 7, are now available on YouTube. It provides a summary of each talk to help viewers decide which to watch, covering topics such as AI agents, distributed systems patterns, performance optimization, security, architecture, and interoperability.

## Takeaways

- JetBrains Air is a plugin for Rider 2026.2 and bundled with Rider 2026.3 EAP, and includes a free Junie Lite option from the model picker.
- The dottrace-analyze skill for agents improved average accuracy from 4.7 to 8.1 out of 10 in evaluations.
- Microsoft’s SQL MCP Server supports SQL Server, Azure SQL, PostgreSQL, Cosmos DB, and MySQL, and works with Data API builder for permission-controlled access.

## FAQ

### When was .NET Day Online 2026 held?

October 7. All session recordings from that date are now available on YouTube.

### Where can I watch the recordings?

On YouTube. The full playlist is linked in the post, with an overview of each session to help you choose.

### Is JetBrains Air available for Rider?

Yes, as a plugin for Rider 2026.2 and bundled with Rider starting with the 2026.3 EAP. A free Junie Lite version is also available from the Air model picker.

**Tags:** [AI Agents](https://yomu.fyi/topic/ai-agents), [JetBrains](https://yomu.fyi/topic/jetbrains), [MCP](https://yomu.fyi/topic/mcp), [.NET](https://yomu.fyi/topic/dotnet), [Rider](https://yomu.fyi/topic/rider)

- Source: [Jetbrains](https://blog.jetbrains.com/dotnet/2026/10/19/jetbrains-dotnet-day-online-2026-watch-the-recordings)
- Source URL: https://blog.jetbrains.com/dotnet/2026/10/19/jetbrains-dotnet-day-online-2026-watch-the-recordings
- Ingested by Yomu: 2026-10-19T09:00:13.371Z

[Read original post](https://blog.jetbrains.com/dotnet/2026/10/19/jetbrains-dotnet-day-online-2026-watch-the-recordings)