ConfigCat.Client

v9.5.1

Feature Flags created by developers for developers with ❤️. ConfigCat lets you manage feature flags across frontend, backend, mobile, and desktop apps without (re)deploying code. % rollouts, user targeting, segmentation. Feature toggle SDKs for all main languages. Alternative to LaunchDarkly. Host yourself, or use the hosted management app at https://configcat.com. Works with .NET, .NET Core, .NET Standard

configcat

feature flag toggle feature-flag feature-flags featureflag featureflags feature-toggle feature-toggles featuretoggle featuretoggles canary release remote config remoteconfig remote-config configcat

NuGet Stats Changelog

Total Downloads

8.1M

8,100,012

Published

Jun 2, 2026

Latest stable version

Install

.NET CLI

dotnet add package ConfigCat.Client --version 9.5.1

Package Manager Console

Install-Package ConfigCat.Client -Version 9.5.1

PackageReference

<PackageReference Include="ConfigCat.Client" Version="9.5.1" />

Frameworks

.NETFramework4.5 .NETFramework4.6.1 net5.0 net6.0 net8.0 .NETStandard2.0 .NETStandard2.1

Dependencies

Newtonsoft.Json

.NETFramework4.5

[13.0.2, )

System.Memory

.NETFramework4.5

[4.5.5, )

System.Text.RegularExpressions

.NETFramework4.5

[4.3.1, )

System.Threading.Tasks.Extensions

.NETFramework4.5

[4.5.4, )

System.Text.Json

.NETFramework4.6.1

[6.0.10, )

System.Text.RegularExpressions

.NETFramework4.6.1

[4.3.1, )

System.Text.Json

net5.0

[6.0.10, )

System.Text.Json

.NETStandard2.0

[6.0.10, )

System.Text.RegularExpressions

.NETStandard2.0

[4.3.1, )

System.Text.Json

.NETStandard2.1

[6.0.10, )

System.Text.RegularExpressions

.NETStandard2.1

[4.3.1, )

Adoption guide

Assess this package against its supported frameworks, license, maintenance signals and dependency graph before making it a project standard.

Compatibility metadata lists 7 target frameworks; confirm the exact target used by your application.

How to read this guidance

Sources: published NuGet v3 registry metadata and explicit NuBrowse editorial guides. Refresh: package metadata is refreshed from NuGet when the page loads. Limit: this is not a security, legal or compatibility guarantee; validate the selected version in your project.

Useful next steps

Move from package metadata to a concrete selection or review workflow.

Audit NuGet dependencies in a .NET project Review NuGet licenses before shipping