FeatureOne 5.2.0
dotnet add package FeatureOne --version 5.2.0
NuGet\Install-Package FeatureOne -Version 5.2.0
<PackageReference Include="FeatureOne" Version="5.2.0" />
<PackageVersion Include="FeatureOne" Version="5.2.0" />
<PackageReference Include="FeatureOne" />
paket add FeatureOne --version 5.2.0
#r "nuget: FeatureOne, 5.2.0"
#:package FeatureOne@5.2.0
#addin nuget:?package=FeatureOne&version=5.2.0
#tool nuget:?package=FeatureOne&version=5.2.0
.Net Library to implement feature toggles.
Nuget Packages
| Package | Latest | Details |
|---|---|---|
| FeatureOne |  |
Provides core functionality to implement feature toggles with no backend storage provider. Needs package consumer to provide IStorageProvider implementation. Ideal for use case that requires custom storage backend. v5.2.0: RelationalCondition, net10.0 support, package upgrades, expanded test coverage. |
| FeatureOne.SQL |  |
Provides SQL storage provider for implementing feature toggles using SQL backend. v5.2.0: net10.0 support, package upgrades. |
| FeatureOne.File |  |
Provides File storage provider for implementing feature toggles using File System backend. v5.2.0: net10.0 support, package upgrades. |
Concept
What is a feature toggle?
Feature toggle is a mechanism that allows code to be turned “on” or “off” remotely without the need for a deploy. Feature toggles are commonly used in applications to gradually roll out new features, allowing teams to test changes on a small subset of users before releasing them to everyone.
How feature toggles work
Feature toggle is typically a logical check added to codebase to execute or ignore certain functionality in context based on evaluated status of the toggle at runitme.
In code, the functionality to be released is wrapped so that it can be controlled by the status of a feature toggle. If the status of the feature toggle is “on”, then the wrapped functionality is executed. If the status of the feature toggle is “off”, then the wrapped functionality is skipped. The statuses of each feature is provided by a store provider external to the application.
The benefits of feature toggles
The primary benefit of feature flagging is that it mitigates the risks associated with releasing changes to an application. Whether it be a new feature release or a small refactor, there is always the inherent risk of releasing new regressions. To mitigate this, changes to an application can be placed behind feature toggles, allowing them to be turned “on” or “off” in the event of an emergency.
Getting Started?
i. Installation
Install the latest nuget package as appropriate.
FeatureOne - for installing FeatureOne for custom IStorageProvider implementation.
NuGet\Install-Package FeatureOne
FeatureOne.SQL - for installing FeatureOne with SQL storage provider.
NuGet\Install-Package FeatureOne.SQL
FeatureOne.File - for installing FeatureOne with File system storage provider.
NuGet\Install-Package FeatureOne.File
ii. Developer Guide
Please see Developer Guide for details on how to implement FeatureOne in your project.
Support
If you are having problems, please let me know by raising a new issue.
License
This project is licensed with the MIT license.
Version History
The following previous versions are available:
| Version | Release Notes |
|---|---|
v5.2.0 |
Notes |
v5.1.0 |
Notes |
v5.0.0 |
Notes |
v4.0.0 |
Notes |
v3.0.0 |
Notes |
v2.0.0 |
Notes |
Recent Releases
| Version | Release Date | Type | Key Changes | Backward Compatibility |
|---|---|---|---|---|
| v5.0.0 | Previous | Initial | Core feature toggle functionality | N/A (Initial release) |
| v5.1.0 | Nov 03, 2025 | Minor | Security fixes (ReDoS protection, secure type loading), architectural improvements (prefix matching, dependency injection), new features (DateRangeCondition, configuration validation), DI integration | High - maintains all existing functionality with minor security-related behavioral changes |
| v5.2.0 | Mar 19, 2026 | Minor | New condition (RelationalCondition with 5 relational operators), target framework (added net10.0, removed netstandard2.0 and net8.0), package upgrades (all MS packages to 10.0.5), expanded test coverage (98%+ line coverage) | High - fully backward compatible, additive changes only |
Credits
Thank you for reading. Please fork, explore, contribute and report. Happy Coding !! 😃
| Product | Versions Compatible and additional computed target framework versions. |
|---|---|
| .NET | net5.0 was computed. net5.0-windows was computed. net6.0 was computed. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 was computed. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 is compatible. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed. |
| .NET Core | netcoreapp3.0 was computed. netcoreapp3.1 was computed. |
| .NET Standard | netstandard2.1 is compatible. |
| MonoAndroid | monoandroid was computed. |
| MonoMac | monomac was computed. |
| MonoTouch | monotouch was computed. |
| Tizen | tizen60 was computed. |
| Xamarin.iOS | xamarinios was computed. |
| Xamarin.Mac | xamarinmac was computed. |
| Xamarin.TVOS | xamarintvos was computed. |
| Xamarin.WatchOS | xamarinwatchos was computed. |
-
.NETStandard 2.1
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 10.0.5)
- Microsoft.Extensions.Logging.Abstractions (>= 10.0.5)
- System.Runtime.Caching (>= 10.0.5)
- System.Text.Json (>= 10.0.5)
-
net10.0
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 10.0.5)
- Microsoft.Extensions.Logging.Abstractions (>= 10.0.5)
- System.Runtime.Caching (>= 10.0.5)
-
net9.0
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 10.0.5)
- Microsoft.Extensions.Logging.Abstractions (>= 10.0.5)
- System.Runtime.Caching (>= 10.0.5)
- System.Text.Json (>= 10.0.5)
NuGet packages (2)
Showing the top 2 NuGet packages that depend on FeatureOne:
| Package | Downloads |
|---|---|
|
FeatureOne.SQL
.Net library to implement feature toggles with SQL storage. |
|
|
FeatureOne.File
.Net library to implement feature toggles with File system storage. |
GitHub repositories
This package is not used by any popular GitHub repositories.
Release Notes v5.2.0 Core Functionality :- Targets .NetStandard 2.1, .Net 9.0 and .Net 10.0
Library to Implement Feature Toggles to hide/show program features. Does not contain storage provider.
New Features:
- Added RelationalCondition for claim-based relational comparisons (Equals, NotEquals, GreaterThan, GreaterThanOrEqual, LessThanOrEqual)
Framework and Package Updates:
- Added net10.0 target framework
- Removed netstandard2.0 and net8.0 target frameworks
- Upgraded all Microsoft packages to 10.0.5
Test Coverage:
- Expanded unit test coverage to 98%+ line coverage
Provides Out of box Simple, Regex and Relational toggle conditions.
Provides extensibility for custom implementations ie.
-- No storage exists by default. Requires `IStorageProvider` implementation to plugin in backend data store for stored features.
-- Provides extensibility to implement custom toggle conditions for bespoke use cases.
-- Provides extensibility for custom toggle deserializer for bespoke scenarios.