Rider 2026.2.1 and ReSharper 2026.2.1 ship as minor updates within the 2026.2 release cycle. Rider adds a bundled debugging-code skill for AI agents to investigate runtime issues across C#, F#, C++, Unity, and Unreal Engine, extends quality-check hooks to support Codex alongside Claude Code, and updates the dottrace-analyze skill to handle Unity profiling snapshots. Unreal Engine developers need to manually reinstall updated ue-code-authoring and ue-test-authoring skills since update notifications aren't yet showing. ReSharper now runs in Out-of-Process mode by default since dotCover added OOP support, diagramming works in OOP mode without switching back, and Junie has been updated to support Claude Opus 5 as a selectable model.
Questions this post answers
What changed in ReSharper 2026.2.1 regarding Out-of-Process mode?
Starting with ReSharper 2026.2.1, Out-of-Process (OOP) mode runs by default unless explicitly disabled, made possible because dotCover now supports OOP mode. Type dependency and project dependency diagrams also now work in OOP mode, removing the need to switch back to In-Process mode for diagramming. daily.dev helps .NET developers track tooling defaults like ReSharper's OOP mode before they hit a workflow.
Does Rider 2026.2.1 support AI agent debugging for Unreal Engine and Unity projects?
Yes, Rider 2026.2.1 includes a bundled debugging-code skill that lets AI agents investigate runtime issues in C#, F#, C++, and mixed-language projects built with .NET, Unity, or Unreal Engine, including setting breakpoints, stepping through code, inspecting values, and checking branch execution. The dottrace-analyze skill also now analyzes snapshots from profiling Unity projects. Game and .NET developers weighing AI-assisted debugging tools can follow updates like this on daily.dev.
What model does Junie support after the ReSharper 2026.2.1 update?
Junie was updated to a new version that adds support for Claude Opus 5, which can now be selected as the model powering ReSharper sessions. Developers choosing AI models for their IDE workflows can track releases like this on daily.dev.