.NET Feature Management v4.5.0 release notes (#1151)

* Add .NET Feature Management 4.5.0 release notes entries

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Co-authored-by: linglingye001 <143174321+linglingye001@users.noreply.github.com>

* Fix 4.5.0 release note wording: remove 'strongly typed', correct ParameterObject to ParametersObject

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* Update 4.5.0 release date to April 23

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* Apply suggestion from @jimmyca15

* Apply suggestion from @jimmyca15

* Apply suggestion from @jimmyca15

* Apply suggestion from @jimmyca15

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: linglingye001 <143174321+linglingye001@users.noreply.github.com>
Co-authored-by: zhiyuanliang-ms <141655842+zhiyuanliang-ms@users.noreply.github.com>
Co-authored-by: Jimmy Campbell <jimmyca@microsoft.com>

Author: 4 people

releaseNotes/Microsoft.Featuremanagement.AspNetCore.md

@@ -2,6 +2,10 @@
 
 [Source code][source_code] | [Package (NuGet)][package] | [Samples][samples] | [Product documentation][docs]
 
+## 4.5.0 - April 23, 2026
+
+* Updated `Microsoft.FeatureManagement` reference to `4.5.0`. See the [release notes](./Microsoft.Featuremanagement.md) for more information on the changes.
+
 ## 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.
@@ -90,4 +94,4 @@ This release has been delisted due to the enhancement below resulting in an unin
 [docs]: https://github.com/microsoft/FeatureManagement-Dotnet
 [package]: https://www.nuget.org/packages/Microsoft.FeatureManagement.AspNetCore
 [samples]: https://github.com/microsoft/FeatureManagement-Dotnet/tree/master/examples/FeatureFlagDemo
-[source_code]: https://github.com/microsoft/FeatureManagement-Dotnet/tree/master/src/Microsoft.FeatureManagement.AspNetCore
+[source_code]: https://github.com/microsoft/FeatureManagement-Dotnet/tree/master/src/Microsoft.FeatureManagement.AspNetCore

releaseNotes/Microsoft.Featuremanagement.Telemetry.ApplicationInsights.md

@@ -2,6 +2,10 @@
 
 [Source code][source_code] | [Package (NuGet)][package] | [Samples][samples] | [Product documentation][docs]
 
+## 4.5.0 - April 23, 2026
+
+* Updated `Microsoft.FeatureManagement` reference to `4.5.0`. See the [release notes](./Microsoft.Featuremanagement.md) for more information on the changes.
+
 ## 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.

releaseNotes/Microsoft.Featuremanagement.md

@@ -2,6 +2,17 @@
 
 [Source code][source_code] | [Package (NuGet)][package] | [Samples][samples] | [Product documentation][docs]
 
+## 4.5.0 - April 23, 2026
+
+### Enhancements
+
+* Added support for custom feature definition providers to pass filter settings directly by using `ParametersObject`, reducing configuration-conversion overhead for non-configuration-backed sources. [#589](https://github.com/microsoft/FeatureManagement-Dotnet/pull/589)
+* Improved filter parameter caching behavior for custom feature definition providers that wrap the built-in `ConfigurationFeatureDefinitionProvider`. [#367](https://github.com/microsoft/FeatureManagement-Dotnet/issues/367)
+
+### Bug Fixes
+
+* Fixed a bug where evaluating features with `RequirementType.All` and `IgnoreMissingFeatureFilters` could throw instead of treating missing filters as disabled. [#586](https://github.com/microsoft/FeatureManagement-Dotnet/issues/586)
+
 ## 4.4.0 - December 18, 2025
 
 ### Enhancements