release note .net fm 4.4.0 (#1118)

Author: zhiyuanliang-ms

releaseNotes/Microsoft.Featuremanagement.AspNetCore.md

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 [Source code][source_code] | [Package (NuGet)][package] | [Samples][samples] | [Product documentation][docs]
 
+## 4.4.0 - December 18, 2025
+
+* Updated `Microsoft.FeatureManagement` reference to `4.4.0`. See the [release notes](./Microsoft.Featuremanagement.md) for more information on the changes.
+
 ## 4.3.0 - August 27, 2025
 
 * Updated `Microsoft.FeatureManagement` reference to `4.3.0`. See the [release notes](./Microsoft.Featuremanagement.md) for more information on the changes.

releaseNotes/Microsoft.Featuremanagement.Telemetry.ApplicationInsights.md

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 [Source code][source_code] | [Package (NuGet)][package] | [Samples][samples] | [Product documentation][docs]
 
+## 4.4.0 - December 18, 2025
+
+* Updated `Microsoft.FeatureManagement` reference to `4.4.0`. See the [release notes](./Microsoft.Featuremanagement.md) for more information on the changes.
+
 ## 4.3.0 - August 27, 2025
 
 * Updated `Microsoft.FeatureManagement` reference to `4.3.0`. See the [release notes](./Microsoft.Featuremanagement.md) for more information on the changes.

releaseNotes/Microsoft.Featuremanagement.md

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 [Source code][source_code] | [Package (NuGet)][package] | [Samples][samples] | [Product documentation][docs]
 
+## 4.4.0 - December 18, 2025
+
+### Enhancements
+
 ## 4.3.0 - August 27, 2025
 
+* Exposed the `SystemClock` property for `TimeWindowFilter` to enable the use of a custom `TimeProvider`. [#558](https://github.com/microsoft/FeatureManagement-Dotnet/issues/558)
+
+* Added new overloads for `FilterCollectionExtensions.AddForFeature` to support specifying multiple feature flags, requirement types, and negation. [#359](https://github.com/microsoft/FeatureManagement-Dotnet/pull/359)
+
 ### Enhancements
 
 * Introduced `ConfigurationFeatureDefinitionProviderOptions` which allows to enable the new configuration merging behavior for the built-in `ConfiguationFeatureDefinitionProvider`. When the same feature flag is defined in multiple sources, definitions are merged according to configuration provider registration order, with the last feature flag definition taking precedence in case of conflicts. [#552](https://github.com/microsoft/FeatureManagement-Dotnet/pull/552)