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Champion "and, or, and not patterns" (VS 16.8, .NET 5)

Design Review

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal

Proposal champion

Status: Open.

#1350 In dotnet/csharplang;

· gafter opened on Mar 1, 2018

Suppress emitting of localsinit flag. (VS 16.8, .NET 5)

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#1738 In dotnet/csharplang;

· tannergooding opened on Jul 25, 2018

Champion "Permit attributes on local functions" (VS 16.8, .NET 5)

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#1888 In dotnet/csharplang;

· gafter opened on Sep 25, 2018

Champion: target-typed conditional expression (VS 16.8, .NET 5)

Design Review

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Smallish Feature

Status: Open.

#2460 In dotnet/csharplang;

· gafter opened on Apr 22, 2019

Champion: Module Initializers (VS 16.8, .NET 5)

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#2608 In dotnet/csharplang;

· gafter opened on Jun 18, 2019

Top level statements and member declarations (embrace scripting dialect) (VS 16.8, .NET 5)

Design Review

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#2765 In dotnet/csharplang;

· MadsTorgersen opened on Aug 30, 2019

Champion: Type Patterns (VS 16.8, .NET 5)

Design Review

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#2925 In dotnet/csharplang;

· gafter opened on Nov 2, 2019

[Proposal] Extension GetEnumerator (VS 16.8, .NET 5)

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal

Proposal champion

Status: Open.

#3194 In dotnet/csharplang;

· 333fred opened on Feb 12, 2020

Proposal: improvements to nullable reference types (VS 16.8, .NET 5)

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal

Proposal champion

Status: Open.

#3297 In dotnet/csharplang;

· jcouv opened on Mar 23, 2020

Permit non-void return types for partial methods (VS 16.8, .NET 5)

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#3301 In dotnet/csharplang;

· AaronRobinsonMSFT opened on Mar 23, 2020

Allow <code>is not ... designator</code> as legal pattern. (VS 16.8, .NET 5)

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#3369 In dotnet/csharplang;

· CyrusNajmabadi opened on Apr 18, 2020

Bug in control flow analysis for out arguments (VS 16.8, .NET 5)

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#3431 In dotnet/csharplang;

· rameel opened on Feb 11, 2019

Champion "Records" (VS 16.8, .NET 5)

Design Review

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#39 In dotnet/csharplang;

· MadsTorgersen opened on Feb 9, 2017

Champion "Covariant Return Types" (VS 16.8, .NET 5)

Design Review

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#49 In dotnet/csharplang;

· gafter opened on Feb 9, 2017

Champion "Target-typed <code>new</code> expression" (VS 16.8, .NET 5)

Design Review

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#100 In dotnet/csharplang;

· gafter opened on Feb 14, 2017

Champion "Lambda discard parameters" (VS 16.8, .NET 5)

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal

Proposal champion

Smallish Feature

Status: Open.

#111 In dotnet/csharplang;

· gafter opened on Feb 15, 2017

Proposal: Use static keyword for lambdas to disallow capturing locals and parameters (VS 16.8, .NET 5)

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#275 In dotnet/csharplang;

· mattwar opened on Mar 15, 2017

Champion "Native-Sized Number Types" (VS 16.8, .NET 5)

Design Review

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#435 In dotnet/csharplang;

· gafter opened on Apr 13, 2017

Proposal: allow comparison operators in switch case labels C# (VS 16.8, .NET 5)

Design Review

Feature Request

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#812 In dotnet/csharplang;

· gafter opened on Aug 10, 2017

Null propagation expression does not allow <code>!</code> as a nested operator form (VS 16.8, .NET 5)

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal champion

Status: Open.

#3393 In dotnet/csharplang;

· agocke opened on Apr 24, 2020

Interface static method, properties and event should ignore variance (VS 16.8, .NET 5)

Feature Request

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal

Proposal champion

Status: Open.

#3275 In dotnet/csharplang;

· mburbea opened on Mar 17, 2020

[Proposal]: Interceptors

Implemented Needs ECMA SpecThis feature has been implemented in C#, but still needs to be merged into the ECMA specificationThis feature has been implemented in C#, but still needs to be merged into the ECMA specification

Proposal

Proposal champion

Status: Open.

#7009 In dotnet/csharplang;

· RikkiGibson opened on Feb 27, 2023