NewYour coding agent can read the release notes before it upgrades.Set up the MCP server →
NuGet · #1993 most downloaded on NuGet
OpenFeature is an open standard for feature flag management, created to support a robust feature flag ecosystem using cloud native technologies. OpenFeature will provide a unified API and SDK, and a developer-first, cloud-native implementation, with extensibility for open source and commercial offerings.
Last release 2 months ago
10 Aug 2026
Ships fairly regularly
a new release about every 6 weeks
Most releases are documented
notes for 33 of 42 stable releases
Nothing withdrawn
no release was ever pulled
4 years old
42 releases · first in 2022
initialize lifecycle on hosts without IHostedLifecycleService support
Change registration to use the Isolated API instead of global singleton
One column per quarter.
add missing variant dimension in MetricsHook metrics
Add IsEmpty property on ImmutableMetadata class
Fix dimension mismatch in active evaluation metric
2.11.0 (2025-12-18) ✨ New Features Upgrade to dotnet version 10
Remove deprecated Dependency Injection code
Deprecate AddHostedFeatureLifecycle method
expose ValueJsonConverter for generator support and add JsonSourceGenerator test cases
update DI lifecycle to use container instead of static instance
Add generic to evaluation event builder
add AddHandler extension method to Dependency Injection package
Change file scoped namespaces and cleanup job
Refactor error handling and improve documentation
Address issue with newline characters when running Logging Hook Unit Tests on linux
deps: update actions/upload-artifact action to v4.6.0
The signature of the finally hook stage has been changed. The signature now includes the evaluation details, as per the OpenFeature specification. Not
The signature of the finally hook stage has been changed. The signature now includes the evaluation details, as per the OpenFeature specification. Note that since hooks are still experimental, this does not constitute a change requiring a new major version. To migrate, update any hook that implements the finally stage to accept evaluation details as the second argument.
Removed support for .NET 6.
Feature Provider Enhancements- #321
Fix action syntax in workflow configuration
Today we're announcing the release of the OpenFeature SDK for .NET, v2.0! This release contains several ergonomic improvements to the SDK, which .NET
Today we're announcing the release of the OpenFeature SDK for .NET, v2.0! This release contains several ergonomic improvements to the SDK, which .NET developers will appreciate. It also includes some performance optimizations brought to you by the latest .NET primitives.
For details and migration tips, check out: https://openfeature.dev/blog/dotnet-sdk-v2
Nothing published for this version
Nothing published for this version
Nothing published for this version
Fix NU1009 reference assembly warning
Fix ArgumentOutOfRangeException for empty hooks
deadlocks in client applications
Support for name client to given provider
split errors to classes by types
correct version range on logging
### Miscellaneous Chores * release 1.0.0
rename OpenFeature class to API and ns to OpenFeature
Thread safe hooks, provider, and context
ErrorType as enum, add ErrorMessage string
### Bug Fixes * add dir to publish
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Your coding agent can read these notes before it upgrades. Set up the MCP server →