What’s New in Rider

In the code editor, you will get first-class support as well:

• When you use HttpClient, code completion will suggest all URIs that can be resolved to actions in controllers annotated with [Route], [Http{Method}], or [AcceptVerbs] attributes.
• You can easily navigate between route attributes inside controllers and these URIs by using Go to Declaration and Find Usages.
• Renaming an attribute route in a controller affects its usages in URIs, and you can even rename a route directly from the URI string.

The long-awaited client-side debugging for Blazor WebAssembly has come to Rider! It works for .NET 5.0 and .NET Core 3.1 applications.

Follow the official Microsoft guide to set up WASM debugging. Then just start debugging your applications as usual.

Do you use temporary variables to swap variable values? There is now a more elegant way to do this! Rider 2021.2 can help you modernize your code with the new Swap via deconstruction quick-fix.

Rider adds new inspections and quick-fixes to help you with using compiler-supported annotations such as [DisallowNull], [AllowNull], [MaybeNull], and [NotNull].

A new inspection detects redundant compiler annotations, such as when [AllowNull] is applied to a nullable type, and a quick-fix removes them.

When nullable reference type syntax can be used, Rider will suggest doing so.

For generated code, warnings and errors are displayed in the editor and on the marker bar.

Also, Rider now supports code generated by source generators in VB.NET.

Rider’s smart integration with the Unity editor will now check if any scenes are open and unsaved before you commit code. You can be sure that everything is saved before committing!

Rider has long shown a link to Unity’s documentation in the tooltip for a Unity class or method, but now you can use the External Documentation action and shortcut to jump straight to the docs without showing the tooltip first.

Rider can now debug local UWP players, by correctly asking Windows to allow incoming connections to the process being debugged.

The Packages view in Unity Explorer is now significantly faster to display when a solution is reopened, and will even remember open folders.

Support for Unreal Engine 5! You read that correctly: Rider for Unreal works great with the new Unreal Engine 5 projects, just as it does with your existing Unreal Engine 4 projects.

Support for opening .uproject files! That’s right, no more generating Visual Studio solution files – Rider can open your Unreal Engine project straight from the <ProjectName>.uproject file.

Rider for Unreal Engine now works on Mac! Simply open your <ProjectName>.uproject file and get the full Rider for Unreal experience on your macOS. This includes rich C++ and HLSL shader editing, navigation, inspections and refactorings, code style settings and quick-fixes, Blueprint support (Find Usages of code inside a Blueprint, Code Vision links and counters, and navigation), and debugger and rich integration with the Unreal Editor. The macOS version works with Unreal Engine 4.26 or later.

Big improvements for Natvis and the built-in presentation of debugger results. Support for the inheritable attribute, format specifiers, custom list items and more, including one-line summaries for all structures not covered by Natvis, and a [Raw View] node for looking at underlying object data.

Expanded Code Style settings. Rider will recognize an Unreal project, and it will automatically configure itself to understand and follow the UE code style conventions. It will highlight code that doesn’t follow the correct style and offer quick-fixes to automatically update your code.

Last, but by no means least, the EzArgs plugin provides easy access to the C++ run/debug configuration arguments – just type a new argument in the drop-down on the toolbar.

We’ve merged the Reformat File and Code Cleanup dialogs into one. The shortcuts for both remain the same, but you will have a new unified view that allows both steps to be performed at once. Cleanup profiles will also preview which actions will be executed, and you can easily switch to the profile editing mode with a button.

In the commit dialog, you can now enable automatic code cleanup of your changes with the profile of your choice. Alternatively, you can use a new option in the Reformat and Cleanup dialog to reformat/clean up only uncommitted changes in the current file.

Actions for reformatting code, optimizing imports, and rearranging code are now available for CSS, JavaScript, and SQL. You can fine-tune the rules under Settings | Editor | Code Cleanup.

Are you a first-time Rider user? If you’ve never installed or used Rider before, the Welcome wizard now lets you import settings from other IDEs such as Visual Studio, Visual Studio for Mac, or Visual Studio Code. In addition, Rider will recognize settings from ReSharper.

Read more about how importing settings from other IDEs works.

It is now easier to drag a tool window to the desired place within the main IDE window or in a separate window. You can drag it by clicking and holding the tool window name bar and dropping it in any highlighted area.

The title bar is now transparent on macOS when the IDE window isn’t in Full-Screen Mode. It means that there is no visible border between the title bar and the rest of the window.

If you need to configure use-case-specific options in Rider, you can do it in the new Advanced Settings node in Preferences/Settings. For example, you can add a left margin in Distraction-free mode, or set the caret to move down after you use the Comment with Line Comment action.

We’ve simplified navigation in Preferences/Settings by adding arrows to the top right-hand corner of the window. They allow you to quickly jump back and forth between the sections you’ve opened.

Property values are evaluated and shown in the debugger by default, but sometimes their evaluation can take some time. This is why we’ve added a new Disable Evaluation of Selected Item action.

Especially with native code, it can happen that evaluating a method call crashes the debugging session. Rider will remember these troublesome calls and disable their evaluation for you.

When stepping through codebases, each new file is opened in a new tab, sometimes leaving you with a very polluted tab bar. The preview tab can help here! It allows you to view files in a single tab one by one without opening each file in a new tab each time. You can enable it in Settings/Preferences | General | Editor Tabs | Opening Policy.

We’ve added a search field to the Local History dialog to help you quickly get to the necessary text in your Local History revisions. Now, when you right-click on any changed file and select Local History | Show History in the context menu, you can quickly navigate around your file history by typing the query in this field.

If you prefer using a Pico brace (indenting) style, we’ve got you covered. Pico style has been added as an option to the Brace Layout tab on Preferences/Settings | Editor | Code Style | C# | Braces Layout page.

Reload pages in browser on save

If you preview HTML files in the browser, they will automatically update in accordance with the saved changes in your HTML file or the linked CSS and JavaScript files. This feature is enabled by default.

Rename refactoring for React useState hooks

You will no longer need to waste time on refactoring useState values and functions one by one – Rider can now rename both for you! Place the caret on a state value and press Shift+F6 or go to Refactor | Rename from the right-click context menu.

Auto-import for require()

Did you know that Rider can add missing import statements as you complete ES6 symbols? Now it can do the same for CommonJS modules, too – require imports will be inserted on code completion.

We’ve added support to generate .aab (Android App Bundle) in addition to .apk files, which will soon be the only way to upload your apps to the Google Play Store.

XCAssets can now be created and edited for imageset, appiconset, and colorset right inside of Rider. This allows you to see all the different end devices and their assigned images, icons, and colors. Images and icons can be added or replaced via drag and drop. For convenient color selection, we’ve added our popular color picker control.

When editing Android layout or resource files, the Resource.Designer.cs file is now automatically generated, removing all errors that were previously incorrectly shown.

Postfix templates can help you transform expressions that you have already typed without jumping backward. We’ve finally introduced them for F#, starting with the let template.

Rider has a new action for pattern deconstruction for F# tuples and union cases.

Actions for rearranging the code are now available. You can move elements up / down or left / right in enum or union cases, record or union case fields, match clauses, tuples, and function parameters.

Another new action, Optimize Imports, will free you from the need to manually trigger a similar quick-fix on warnings each time you need to clean imports.

An early preview version of Rider 2021.2 with full native M1 chip support is available. This version has no x64-to-ARM64 translation. It uses the following runtimes:

• The Apple Silicon–compatible JBR (JetBrains Runtime) for the frontend.
• .NET 6 Preview 4 for the backend.

Check out this page for more information.

DDL data source generation is another step in our long-term development of seamless database versioning. With this feature, you can keep your DDL files under a VCS system and regenerate them every time your database structure is updated.

It is now possible to generate a DDL data source based on a real one. The DDL files are created locally and the new data source is based on them. This way you’ll always be able to regenerate these files and refresh the DDL data source.

If you turn on the Separate Procedures and Functions option in the database explorer settings (the gear icon), it will immediately take effect.

For SQL Server there are dedicated nodes for scalar and table functions. For PostgreSQL there is a node for trigger functions.

The new database tree option called Show Constraints and Triggers in the Schema assigns triggers, keys, and indices their own individual nodes in the database explorer.

Code completion for cross-database synonyms is now available.

Now, dotCover can run coverage analysis of test classes in parallel within one assembly. In some particular cases, this may result in faster coverage analysis.

Preloading of unit test runners is available for .NET Core and .NET projects, which means coverage analysis starts faster as unit test runners are already loaded in memory.

There are additional improvements that also deserve a mention:

• Improved support for C# 8.0 and C# 9.0 in the coverage tree – showing default interface implementations, and more.
• dotCover now offers to restart Unity Editor if the coverage filters have been changed.

DPA now stores two values for each issue – the historical max value and the value from the last run. This prevents false negatives, as it was previously possible for issues to fall below the threshold and disappear from the issue list, not because they had been fixed, but because their launch conditions had changed.

Also, there are several other improvements:

• DPA is automatically disabled when you start performance profiling.
• The Dynamic Program Analysis window now supports selecting multiple issues.
• Suppressing issues with the SuppressMessage attribute now works for asynchronous methods.

SpecFlow is a tool to bring Behavior-Driven Development to .NET. Incentivized by the community, we’ve been helping the SpecFlow development team bring a SpecFlow plugin to JetBrains Marketplace, which adds syntax highlighting, code completion, navigation, and skeleton code-generation for SpecFlow tests. We’ve covered these features in-depth in a webinar with Andreas Willich.

We’ve reconsidered a list of the featured plugins you can see in the “Customize Rider” wizard during initial setup. Now the list is the following:

• IdeaVim
• Heap Allocations Viewer
• Rider Xamarin Android Support
• Azure Toolkit for Rider
• AWS Toolkit
• SpecFlow for Rider

The embedded decompiler now can decompile single-file apps. It supports single-file formats for .NET Core 3.1, .NET 5 and upcoming .NET 6 SDK.

Using Assembly Explorer, you can browse through bundled assemblies inside a single-file app as you are used to.

Now you won’t miss any critical product updates from the JetBrains Toolbox App. Rider will alert you if there is a new version available for download and will offer to upgrade you to it. You’ll need to have JetBrains Toolbox App 1.20.8804 or later for this.

• Razor developers working on large views can turn off the CPU-intensive assistance and automatic suggestions if their editor begins to lag. You can find the settings here: Preferences/Settings | Editor | General | Typing Assistance | Razor | Allow CPU-intensive typing assist.
• The Go To Base/Inheritors list shows hidden overrides, as well.
• We've added support for the log message template from Microsoft LoggerExtensions. Rider now analyzes the code, adds highlighting, and offers context actions.
• We've added an option to suppress issues for asynchronous methods.
• Rider will warn you when you try to run a 64-bit web application on 32-bit IIS Express ("use64Bit": false in launchSettings.json) in in-process mode.