Visual Studio 2026 - New Features With CSharp

Question

Hi,

Can you please lists all the new Features in Visual Studio with C#.

If you add screencast foe each feature is will be great.

Thanks in advance,

Answer 1

Thank you for reaching out.

Visual Studio 2026 ships with full support for .NET 10 and C# 14, bringing the newest language improvements directly into the IDE. C# 14 focuses on cleaner syntax, less boilerplate, better performance, and safer code patterns.

1. Extension Members

Let you add properties, methods, operators, and static members to existing types without modifying the original class.\

Reference: What's new in C# 14 – Extension members

2. The field Keyword (Field‑Backed Properties)

Allows property getters/setters to directly use the implicit backing field, removing the need for manually declared private fields.\

Reference: What's new in C# 14 – field keyword

3. Null‑Conditional Assignment (?.=)

Lets you safely assign to a property or field only if the receiver is not null (e.g., obj?.Prop = value).\ Reference: C# 14 – Null‑conditional assignment spec

4. nameof Supports Unbound Generic Types

You can now write:

nameof(List<>)

and get “List”, which is useful for logging, diagnostics, and reflection.\

Reference: What's new in C# 14 – nameof unbound generic

5. Implicit Conversions for Span<T> and ReadOnlySpan<T>

C# 14 lets arrays and spans convert more naturally without unnecessary allocations → better performance.\

Reference: What's new in C# 14 – Span improvements ,

6. Modifiers on Simple Lambda Parameters

You can now use ref, in, out, scoped on lambda parameters without writing explicit types.\ Reference: What's new in C# 14 – lambda parameter modifiers

7. Partial Events & Partial Constructors

Allows splitting event definitions and constructors across partial class files → useful for source generators and large projects.\

Reference: What's new in C# 14 – partial events/constructors

8. User‑Defined Compound Assignment Operators

You can implement custom behavior for operators like +=, creating more efficient in‑place updates for structs/value types.\

Reference: What's new in C# 14 – user‑defined compound assignments

9. New Preprocessor Directives for File‑Based Apps

Adds directives that work with single‑file C# scripts (.cs) used in .NET 10 file‑based applications.\ Reference: What's new in C# 14 – file‑based app directives

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Answer 2

Visual Studio 2026 introduces several new features that enhance the development experience with C#. Here are the key features:

1. Support for .NET 10 and C# 14: This version provides full support for the latest features and improvements in C# 14, allowing developers to leverage new language constructs and performance enhancements.
2. Extension Members: C# 14 allows for the addition of members to existing types without modifying the original type.
3. Null-Conditional Assignment: This feature simplifies the assignment of values to properties or fields that may be null.
4. nameof Supports Unbound Generic Types: The nameof operator can now be used with unbound generic types, improving code readability and maintainability.
5. More Implicit Conversions for Span<T> and ReadOnlySpan<T>: This feature enhances the usability of span types in various contexts.
6. Modifiers on Simple Lambda Parameters: Developers can now use modifiers on lambda parameters, providing more flexibility in lambda expressions.
7. Field-Backed Properties: C# 14 introduces a new syntax for defining properties that are backed by fields, simplifying property declarations.
8. Partial Events and Constructors: This feature allows for the definition of events and constructors in partial classes, enhancing modularity.
9. User-Defined Compound Assignment Operators: Developers can now define their own compound assignment operators, allowing for more expressive code.
10. New Preprocessor Directives for File-Based Apps: This feature introduces new preprocessor directives that are specifically designed for file-based applications.

These features are integrated seamlessly into Visual Studio 2026, providing a smooth development experience with enhanced productivity tools, IntelliSense, and debugging capabilities.

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References:

• Visual Studio 2026 release notes
• What's new in C# 14