---
title: "Rider and ReSharper 2026.2.2 Are Out!"
description: "Version 2026.2.2 of ReSharper, Rider, and .NET tools is available through the products, Toolbox App, or website. Rider adds an AI Agent Setup widget to the bottom-right status bar, where users can review supported MCP tools, skills, and hooks, see which are enabled, and open the relevant settings. Its hooks now give agents narrower inspection results for newly added code, while the Reformat file hook reports IDE formatting changes as a diff; dotCover also adds TUnit coverage, requiring JetBrains.dotCover.Framework and Microsoft.Testing.Platform 2.3.0 or later. The release fixes a macOS backend-resume freeze, removes dependence on Unity editor executable names for attachment, and enables MCP file operations across attached solution folders; ReSharper also receives TUnit coverage support."
---

# Rider and ReSharper 2026.2.2 Are Out!

[Jetbrains](https://yomu.fyi/company/jetbrains) · Alexander Kurakin · Sep 16, 2026

**Type:** Announcement

## Summary

Version 2026.2.2 of ReSharper, Rider, and .NET tools is available through the products, Toolbox App, or website. Rider adds an AI Agent Setup widget to the bottom-right status bar, where users can review supported MCP tools, skills, and hooks, see which are enabled, and open the relevant settings. Its hooks now give agents narrower inspection results for newly added code, while the Reformat file hook reports IDE formatting changes as a diff; dotCover also adds TUnit coverage, requiring JetBrains.dotCover.Framework and Microsoft.Testing.Platform 2.3.0 or later. The release fixes a macOS backend-resume freeze, removes dependence on Unity editor executable names for attachment, and enables MCP file operations across attached solution folders; ReSharper also receives TUnit coverage support.

## Context

This is a point release for ReSharper, Rider, and .NET tools. It combines new Rider tooling for coding agents, more targeted hook output, TUnit coverage support in dotCover, and fixes affecting macOS, Unity attachment, and MCP file operations.

## Approach / What changed

Rider adds a status-bar AI Agent Setup widget that links supported coding-agent features to their settings. Hooks are adjusted to return only relevant inspection results and formatting diffs. dotCover adds TUnit coverage after installing JetBrains.dotCover.Framework and enabling Testing Platform support, with Microsoft.Testing.Platform 2.3.0 or later required.

## Takeaways

- The AI Agent Setup widget shows supported MCP tools, skills, and hooks, indicates which are enabled, and links to the settings needed to configure them.
- Run files inspections now reports only code added by an AI agent, while Reformat file reports IDE formatting changes as a diff.
- dotCover supports coverage for TUnit tests in Rider and ReSharper; TUnit coverage requires JetBrains.dotCover.Framework and Microsoft.Testing.Platform 2.3.0 or later.

## FAQ

### What does the AI Agent Setup widget configure?

The widget lists Rider features for coding agents, including MCP tools, skills, and hooks. It shows enabled and available features and links directly to the relevant settings, whether the agent runs inside Rider or in an external terminal.

### What changed in Rider’s hooks for coding agents?

The Run files inspections hook now returns inspection results only for code the agent added. The Reformat file hook provides a diff of formatting changes made by the IDE, so agents can identify those updates without rereading the file.

### What is required for TUnit coverage?

Install the JetBrains.dotCover.Framework package and enable Testing Platform support in Rider or ReSharper. TUnit coverage requires Microsoft.Testing.Platform version 2.3.0 or later.

**Tags:** [AI Agents](https://yomu.fyi/topic/ai-agents), [MCP](https://yomu.fyi/topic/mcp), [Rider](https://yomu.fyi/topic/rider), [Testing](https://yomu.fyi/topic/testing)

- Source: [Jetbrains](https://blog.jetbrains.com/dotnet/2026/09/16/rd-rs-2026-2-2)
- Source URL: https://blog.jetbrains.com/dotnet/2026/09/16/rd-rs-2026-2-2
- Ingested by Yomu: 2026-09-16T20:00:52.296Z

[Read original post](https://blog.jetbrains.com/dotnet/2026/09/16/rd-rs-2026-2-2)