- Release v5.2.0

[NinjaRocks]

FeatureOne — Release Notes v5.2.0

Release Date: March 19, 2026
Release Type: Minor
Packages:FeatureOne · FeatureOne.SQL · FeatureOne.File

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What's New

RelationalCondition

A new built-in toggle condition — RelationalCondition — has been added to the core library. It enables claim-based feature gating using standard relational operators, making it possible to target users by tier, role, numeric level, or any string-comparable claim value.

Supported operators (RelationalOperator enum):

Operator	Description
Equals	Claim value equals the configured value
NotEquals	Claim value does not equal the configured value
GreaterThan	Claim value is lexicographically greater than the configured value
GreaterThanOrEqual	Claim value is lexicographically greater than or equal to the configured value
LessThanOrEqual	Claim value is lexicographically less than or equal to the configured value

Both the claim value and the configured value are trimmed of whitespace before comparison.

JSON toggle definition:

{
"tier_feature": {
"toggle": {
"conditions": [{
"type": "Relational",
"claim": "tier",
"operator": "GreaterThanOrEqual",
"value": "gold"
}]
}
}
}

C# toggle definition:

newFeature("tier_feature",newToggle(Operator.Any,new[]{newRelationalCondition{Claim="tier",Operator=RelationalOperator.GreaterThanOrEqual,Value="gold"}}))

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Framework and Package Updates

Change	Detail
Added target framework	net10.0
Removed target frameworks	netstandard2.0, net8.0
Supported target frameworks	netstandard2.1, net9.0, net10.0
Microsoft package upgrades	All Microsoft packages upgraded to 10.0.5

Packages upgraded:

Package	Version
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

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Test Coverage

Metric	Coverage
Line coverage	98%+
Branch coverage	84%+
Total tests	174+

New tests added:

• RelationalConditionTests — 20 unit tests covering all operators, null guards, whitespace trimming, and edge cases
• RelationalConditionSQLTests — SQL storage pipeline tests for RelationalCondition deserialization and evaluation
• E2E tests for RelationalCondition via the File storage backend

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Breaking Changes

None. This release is fully backward compatible — all existing toggles, conditions, and storage providers continue to work without modification.

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Upgrade Guide

Update the package version in your project:

NuGet\Install-Package FeatureOne -Version 5.2.0
NuGet\Install-Package FeatureOne.SQL -Version 5.2.0
NuGet\Install-Package FeatureOne.File -Version 5.2.0

If you are targeting net8.0 or netstandard2.0, upgrade to net9.0, net10.0, or netstandard2.1.

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Full Changelog

#	Change	Type	Package(s)
1	Added RelationalCondition with Equals, NotEquals, GreaterThan, GreaterThanOrEqual, LessThanOrEqual operators	Feature	FeatureOne
2	Registered RelationalCondition in ConditionDeserializer safe type registry	Feature	FeatureOne
3	Added net10.0 target framework	Enhancement	All
4	Removed netstandard2.0 and net8.0 target frameworks	Cleanup	All
5	Upgraded all Microsoft packages to 10.0.5	Dependency	All
6	Added RelationalConditionTests (20 unit tests)	Test	FeatureOne
7	Added RelationalConditionSQLTests (4 unit tests)	Test	FeatureOne.SQL
8	Added E2E test TestForTierFeatureToBeEnabledForGoldAndAbove	Test	FeatureOne.File
9	Updated DeveloperGuide.md with Relational Condition section	Docs	All
10	Updated NuGet package icon to feature-flag.png	Packaging	All