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Permit lambda and local function parameters to hide names from the enclosing scope (16.3, Core 3)

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.

#2777 In dotnet/csharplang;

· gafter opened on Sep 4, 2019

Champion "permit <code>t is null</code> for unconstrained type parameter" (16.3, Core 3)

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.

#1284 In dotnet/csharplang;

· gafter opened on Jan 26, 2018

Champion: Target-typed switch expression (16.3, Core 3)

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.

#2389 In dotnet/csharplang;

· gafter opened on Apr 4, 2019

Champion "Null-coalescing assignments" (16.3, Core 3)

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.

#34 In dotnet/csharplang;

· MadsTorgersen opened on Feb 9, 2017

Champion: "Allow Obsolete attribute on getters and setters" (16.3, Core 3)

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.

#2152 In dotnet/csharplang;

· gafter opened on Jan 17, 2019

Champion: extensions in pattern-based statements (16.3, Core 3)

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.

#2135 In dotnet/csharplang;

· jcouv opened on Jan 11, 2019

Champion: Unmanaged constructed types (16.3, Core 3)

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.

#1937 In dotnet/csharplang;

· agocke opened on Oct 18, 2018

Champion: Unmanaged constructed types (16.3, Core 3)

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.

#1744 In dotnet/csharplang;

· tannergooding opened on Jul 27, 2018

Proposal: Adding nullable reference type features to nullable value types (16.3, Core 3)

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.

#1865 In dotnet/csharplang;

· MadsTorgersen opened on Sep 17, 2018

Champion: Readonly members on structs (16.3, Core 3)

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.

#1710 In dotnet/csharplang;

· tannergooding opened on Jul 12, 2018

Champion "static local functions" (16.3, Core 3)

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.

#1565 In dotnet/csharplang;

· jcouv opened on May 24, 2018

Champion: Implicitly scoped using statement (16.3, Core 3)

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.

#114 In dotnet/csharplang;

· HaloFour opened on Feb 15, 2017

Champion "Implicitly scoped using statement" (16.3, Core 3)

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.

#1174 In dotnet/csharplang;

· gafter opened on Dec 6, 2017

Champion: verbatim interpolated string (order of $@ vs. @$) (16.3, Core 3)

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.

#1630 In dotnet/csharplang;

· stuartstein777 opened on Jun 14, 2018

Proposal: Allow <code>using</code> statement to structurally match <code>IDisposable</code> on ref structs (16.3, Core 3)

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.

#1623 In dotnet/csharplang;

· agocke opened on Jun 12, 2018

Champion "Permit stackalloc in nested expressions" (16.3, Core 3)

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.

#1412 In dotnet/csharplang;

· gafter opened on Mar 23, 2018

Champion "slicing" / Range (16.3, Core 3)

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.

#185 In dotnet/csharplang;

· gafter opened on Feb 26, 2017

Champion "Pattern Matching" (16.3, Core 3)

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.

#45 In dotnet/csharplang;

· gafter opened on Feb 9, 2017

Champion "default interface methods" (16.3, Core 3)

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.

#52 In dotnet/csharplang;

· gafter opened on Feb 10, 2017

Champion "Nullable reference types" (16.3, Core 3)

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.

#36 In dotnet/csharplang;

· MadsTorgersen opened on Feb 9, 2017

Champion "Async Streams" (including async disposable) (16.3, Core 3)

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.

#43 In dotnet/csharplang;

· gafter opened on Feb 9, 2017

Proposal: Improve analysis of [MaybeNull]T values

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.

#2946 In dotnet/csharplang;

· cston opened on Nov 8, 2019