Released: Jul 22, 2026

Updates in 2026.2

Features

Preview of ACP agent support in ReSharper starts with Junie

• JetBrains is building an ecosystem where .NET developers control their AI experience in Visual Studio - no vendor lock-in, no forced choices, just the freedom to use the agents and models that work best for you. The goal is to let you connect agents through the Agent Client Protocol (ACP) and pair them with JetBrains' deep code intelligence without being locked into a single vendor.
• ReSharper 2026.2 takes the first step in that direction with preview support for Junie, JetBrains' own LLM-agnostic agent, now available via ACP in Microsoft Visual Studio. You can switch from AI Chat to Agent mode in the AI Assistant tool window and ask Junie to generate and edit code, refactor complex implementations, run terminal commands, manage Git workflows, explain legacy code, and suggest architectural improvements.
• To bring Junie to Visual Studio, be sure to select the AI Assistant plugin for installation when updating ReSharper. A free trial is available if you don't have a JetBrains AI subscription yet.
• Regional restrictions on the availability of AI features in Mainland China apply.

Debugging for VS Code-compatible editors

• The most requested feature for ReSharper in VS Code is here. The latest update introduces the initial version of debugging for VS Code-compatible editors, including VS Code, Cursor, Google Antigravity, Devin Desktop, and Kiro. Built on the same core engine that powers JetBrains Rider, it brings breakpoint management (including conditional, hit-count, dependent, and tracepoints), real-time variable and expression inspection, full step navigation, and launch-and-attach support directly to your editor.
• This makes ReSharper the most complete .NET option available on Cursor, Antigravity, Devin Desktop, and Kiro, as well as other VS Code-compatible editors.

Code analysis and refactoring

• C# support updates - ReSharper 2026.2 improves its C# code analysis with more cases where collection expressions can be used. The new inspections help you keep code concise and, in some scenarios, avoid creating intermediate collections. Support for upcoming C# 15 language features is also being actively developed as the compiler evolves, with complete language understanding planned for the next major release.
• Enhanced Extract Method refactoring - Extract Method now detects exact and parameterized duplicates of the selected code within a file and lets you choose which occurrences to replace as part of the refactoring. This makes it easier to consolidate repeated logic into a single, well-named method without cleaning up each duplicate manually.
• '.editorconfig' and Roslyn analyzer integration - You can now adjust .editorconfig settings for compiler warnings directly from the Alt+Enter menu as warnings appear in the editor. ReSharper's code analysis also follows Roslyn analyzer configuration more accurately, including settings defined in .editorconfig files and suppression rules applied with #pragma directives.
• Enhanced Import missing references popup experience - The Import missing references popup has been revamped for a smoother experience. JetBrains have optimized its placement, got rid of flickering, and ensured it stays out of the way while you type, so it no longer interrupts your workflow.

C++ updates

• C⁠+⁠+⁠26 reflection: Initial support for C⁠+⁠+⁠26 reflection, laying the groundwork for next-generation compile-time metaprogramming.
• 'constexpr' evaluation updates: Support for memory allocations and exceptions during evaluation of compile-time code.
• ISPC support: Syntax highlighting, code analysis, and navigation for files using the ISPC language.
• Code analysis: New inspections for applying internal linkage, using designated initializers in aggregate initialization, and detecting qualified calls to overridden virtual functions.

Performance

• Processing of .cshtml and .razor files is now faster and more memory-efficient, thanks to cached parsed syntax trees, improving the performance of features such as Find Usages and refactorings. Memory allocations have been significantly reduced in multiple areas, speeding up indexing during startup.

Improved tool support in Out-of-Process mode

• dotTrace, dotMemory, and the Monitoring tool now work when ReSharper runs in Out-of-Process mode.
• With Monitoring available in OOP mode, the transition announced in the previous release is complete: Dynamic Program Analysis (DPA) has been retired in 2026.2, and its core capabilities continue through the new Monitoring experience.

ReSharper now includes integrated profiling and coverage tools

• Starting with ReSharper 2026.2, the tools for performance and memory profiling, and code coverage are installed automatically as part of your ReSharper installation. There's nothing extra to select or download; the tools are set up for you and ready to use inside Visual Studio from the moment you install. You can profile performance, track memory, and check coverage without ever leaving your workflow.

Updated dotUltimate offline installer for Windows

• The dotUltimate offline installer for Windows is intended for administrators who deploy ReSharper and other dotUltimate tools across teams, managed environments, or machines with limited internet access. In 2026.2, this offline installer is distributed as a .ZIP archive instead of a standalone .EXE file. The lightweight online installer remains available for users who do not need the offline package.
• After downloading the offline package, extract the archive and run the included dotUltimate installer. The .ZIP archive contains two files: the dotUltimate installer executable and a companion .dat file. The installer executable contains the product binaries except Rider; Rider binaries are stored in the .dat file. The installation flow and supported scenarios remain the same, but deployment scripts or internal instructions may need to include the extraction step and keep both files together before running the installer.