What’s New in Rider 2024.3

For this release we reviewed almost all C# error, warning, and informal messages and introduced text colorization wherever possible.

Approximately 600 messages were upgraded with tooltips that are structured for easier reading and include the familiar colors from the editor for the included code elements.

The updated Run widget now allows multiple configurations to be launched simultaneously by holding Ctrl and clicking the debug icon. It also displays the controls for all running configurations, simplifying management.

The default tab limit in the editor has been increased to 30, allowing more tabs to stay open before the IDE closes the least recently used ones. You can adjust this in Settings | Editor | General | Editor Tabs.

We've updated the new terminal's UI with a more compact design, reducing padding to optimize the use of your screen. The smaller padding saves space, giving you enhanced visibility while working with commands without sacrificing readability.

With its latest release, Rider introduces support for the latest features that come with C# 13, namely:

• New params collections: The params keyword has been expanded to work with various collection types, allowing for more efficient method signatures without additional allocations.
• Partial properties: Support has been added for partial properties, enabling you to spread property accessor implementations across multiple files, increasing flexibility and organization in your codebase.
• New lock type: The new System.Threading.Lock type has been introduced for more efficient thread synchronization, improving performance over the traditional lock statement.
• Overload resolution priority: A new attribute is available, providing better control of method overload resolution and allowing developers to prioritize which overload gets called in complex scenarios.
• field keyword: The preview feature has been added to the field keyword. This gives direct access to the backing field of auto-properties, simplifying property logic.

Learn all about the support of C#13 features in Rider and ReSharper on our blog.

In Rider 2024.3, code cleanup has been re-engineered for more robust performance. It now leverages the same engine as scoped quick-fixes, ensuring thorough issue resolution and enhancing analyzer precision. Parallel preprocessing has also been added to optimize file handling.

Additionally, you can now select the Code Cleanup profile per file or skip cleanup on specific files.

We’ve added a couple of new options to adjust naming rules more precisely.

• Local functions now come with two options: Local functions with ‘async’ and Task-returning local functions (not ‘async’).
• Methods have been given a new Task-returning method (not ‘async’) option to support methods with an async suffix in the name that aren’t marked with an async modifier but return a Task-like type. This is helpful when you declare a method in an interface where you aren’t allowed to use an async modifier, but which will return a Task type in implementation.

Rider 2024.3 now supports multiline TODO comments, allowing indented text on subsequent lines to be treated as part of the same TODO item. This enhancement makes it easier to group related notes and tasks together in your codebase. You can now add context to your TODOs across multiple lines, improving readability and organization.

F# support now shows inferred type hints for patterns and members. It’s easy to see the local value types with the new Push-to-Hint implementation.

Code completion can now import functions, values, union cases, and active patterns. There is also a new quick-fix that helps update the pasted code.

You can convert a function expression to a parameter and match it with a new context action.

We’ve significantly improved performance when analyzing referenced C# projects and fixed various false positive errors.

More changes, fixes, and new features are listed on the GitHub page.

The Welcome screen now shows the branch name, helping you stay organized when handling multiple project versions and allowing you to switch between working directories easily.

You can now manage background checks during the commit process with a new Run advanced checks after a commit is done option under Settings | Version Control | Commit. This setting lets you decide if tests and inspections should run after making a commit. If you want these checks to be completed before the commit happens, simply disable it.

The Find in Files feature has been enhanced with a new search scope, Project Files Excluding Git-Ignored. This option excludes any files ignored in .gitignore files from your search results, helping you focus only on the relevant code when searching through your project.

After a final round of refinements during Beta – with particular attention to typing stability – Rider’s remote development functionality is now fully equipped to handle all core development workflows you rely on.

From code editing and debugging to version control, everything now operates almost as seamlessly as it would on a local instance, providing a smooth and powerful experience in remote environments.

You can read more about the supported workflows on the blog.

This release brings automatic debugging of child processes on Windows. Any processes created during a debug session will join the session, and breakpoints in the child process will be hit.

It’s also possible to configure rules to decide which child processes to debug and which ones to skip.

In addition to the exciting news about Rider’s support for debugging on consoles, this release also introduces support for the Verse programming language, new code insight features, and integration with Live++ for the hot-reload of C++ applications.

To learn more about the new code insight features, take a look at What's New in ReSharper C++.

Rider 2024.3 improves your debugging experience with IL2CPP builds, providing the same features you get with Mono. This means you will see Active Scene and this.gameObject nodes in the debugger, as well as Children and Components for GameObject instances. It also fixes issues with the Immediate window, the Collection view, and IL2CPP builds.

This release fixes an important bug with C# Hot Reload support and Godot. Rider will now apply any changes you make in your C# code to your application while the game is still running.

Rider is also ready to work with the updates to GDScript debugging coming in Godot 4.4, which will provide a much richer view of object properties than is currently available in earlier versions of Godot.

Rider now excludes node_modules results by default when using Find in Files in project directories, reducing clutter from irrelevant files. You can restore the previous behavior by enabling the Search in library files when “Directory” is selected in Find in Files option under Settings | Advanced Settings.

We’ve enhanced in-editor hints for Vue, Svelte, and Astro components. The Show component usages action now finds usages in both imports and markup templates. We’ve also added a Show Component Usages filter to exclude component usages when searching for regular file references. The Rename refactoring has also been updated with an option to include usages when renaming a component file.

The color preview for Tailwind CSS classes is now shown inline in the editor, making it easier to tell the colors apart. We've added support for the textDocument/documentColor method from the Language Server Protocol (LSP), so all LSP-based plugins now offer this functionality out of the box.

We have improved the experience of working with AI Assistant in the editor. Now, when you ask AI Assistant to do something with a chunk of code, the editor area contains a diff with both the original and the generated code. AI Assistant’s suggestions are highlighted with a different color and marked with the Revert icon in the gutter. You can also edit the resulting query yourself in the same area. Your changes are highlighted the same way. For example, you can ask AI Assistant to retrieve more data with a query and then add an ORDER BY clause to the generated result.

We have implemented a couple of useful actions for handling SQL query execution errors with AI Assistant, which are accessible in the error message area. Explain with AI opens the AI chat with an automatically sent prompt and AI Assistant’s response providing an explanation of the error. The Fix with AI action generates a fix for the query execution error in the editor.

Rider 2024.3 introduces inline AI prompts, offering a seamless way to interact with AI Assistant directly in the editor. You can type requests in natural language, which AI Assistant instantly interprets and converts into code changes, marked with purple in the gutter for easy tracking. Inline AI prompts are context-aware, automatically including related files and symbols for more accurate code generation.

In this update, we’ve made managing the context AI Assistant takes into account with its suggestions more transparent and intuitive. A revamped UI lets you view and manage every element included as context, providing full visibility and control. The open file and any selected code within it are now automatically added to the context, and you can easily add or remove files as needed, customizing the context to fit your workflow. Additionally, you can attach project-wide instructions to guide AI Assistant’s responses throughout your codebase.

You can now select your preferred AI chat model, choosing from Google Gemini, OpenAI, or local models on your machine. This expanded selection allows you to customize the AI chat’s responses to fit your specific workflow, offering a more adaptable and personalized experience.

The IL Viewer tool window now provides IL code for assembly manifest, including:

• Assembly and module info such as name, custom attributes, etc.
• Referenced assemblies and modules.
• Forwarded types.
• A list of files and resources.

This IL code is shown when the caret in the text editor is on an assembly or module attribute or somewhere inside an <AssemblyName>.cs file for external assemblies.