The JetBrains Blog

Tracking down performance bottlenecks in Visual Studio often means interrupting your workflow, restarting your application in profiling mode, and hoping you can reliably reproduce the exact issue. We think there’s a better way. If you have already used Monitoring in Rider, this experience will fe…

ReSharper 2026.1 is here, bringing improvements that focus on how you actually work: understanding runtime behavior, writing safer C#, and keeping Visual Studio responsive. This release introduces a new approach to performance monitoring, takes ReSharper beyond Visual Studio, and delivers a range…

The ReSharper 2026.1 Release Candidate is ready for you to try. This release focuses on making everyday .NET development faster and more predictable, with improvements to code analysis and language support, a new way to monitor runtime performance, and continued work on stability and responsivene…

We’ve just released another update for ReSharper, Rider and the .NET tools version 2025.3. You can update to this version from inside those tools, using the Toolbox app or our website.  Let’s take a look at the latest updates.  Rider 2025.3.2 Agent Client Protocol (ACP) agent regi…

The ReSharper 2026.1 Early Access Program is now open, and the first EAP build brings a mix of C# productivity improvements, new inspections, performance work, and expanded C++ language support. As always, EAP builds are an opportunity to try upcoming features early and help us refine them before…

Since the 2025.3 release, we’ve published several rapid-response updates (2025.3.0.1–2025.3.0.4) for ReSharper and Rider to address the most urgent issues as quickly as possible. The 2025.3.1 update brings all of those fixes together and includes additional improvements that required more time to im…

Another set of updates for the 2025.3 versions of ReSharper and Rider has just been released. This release contains important bug-fixes as well as feature updates. Let’s take a look at what’s been improved. Rider 2025.3.0.4 Multi-agent experience in the AI Chat window: Junie and Claude Agen…

Another set of updates for the 2025.3 versions of ReSharper and Rider has just been released.  Let’s take a look at what’s been improved. ReSharper 2025.3.0.3 The most notable fix of this build is that extension methods from source-only NuGet packages are now recognized correctly in the editor…

A second set of updates and bug fixes for the 2025.3 release of ReSharper and Rider has just been made public.  Let’s take a look at what’s been improved. ReSharper 2025.3.0.2  Visual Studio 2026 no longer displays the warning that ReSharper uses the deprecate…

We’re pleased to announce the release of ReSharper 2025.3 in sync with .NET 10, continuing our tradition of releases that deliver day-one support for the newest C# language features. This version brings comprehensive C# 14 coverage, including extension members, extension operators, and user-defin…

Get a preview of all the latest features and improvements set to be shipped with the next major ReSharper by downloading the Release Candidate builds that have just landed. The ReSharper 2025.3 Release Candidate Comprehensive C# 14 support including extension members, extension operator…

At the most recent JetBrains.NET Days Online 2025 event, Maarten Balliauw delivered a comprehensive session on migrating existing codebases to use C# nullable reference types, a feature that's been available since C# 8 but remains underutilized in many legacy projects. Through practical examples and…