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Release note for JS FM v2 #1008

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Release note for JS FM v2 #1008

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22 changes: 22 additions & 0 deletions releaseNotes/JavaScriptFeatureManagement.md
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[Source code][source_code] | [Package (npm)][package] | [Samples][samples]

## 2.0.0 - Jan 14, 2025

### Enhancements

This is the first stable release of the following features.

* __Variant Feature Flags__

A variant feature flag is an enhanced feature flag that supports multiple states or variations. While it can still be toggled on or off, it also allows for different configurations, ranging from simple primitives to complex JSON objects. Variant feature flags are particularly useful for feature rollouts, configuration rollouts, and feature experimentation (also known as A/B testing).
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Is there a PR or issue to link to that describes this addition?


The new `getVariant` API has been introduced to evaluate the assigned variant based on the variant feature flag configuration and targeting context.
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getVariant is a function calling it API seems overly generic.

Also, this is a method on a FeatureManager type right? It would be good to fully qualify it in that case.


* __Telemetry__

Telemetry provides observability into flag evaluations, offering insights into which users received specific flag results. This enables more powerful metric analysis, such as experimentation.

The new `onFeatureEvaluated` constructor parameter of `FeatureManager` allows you to set a custom callback for all feature evaluations. This hook can be used to publish telemetry. You can call `createTelemetryPublisher` API from `@microsoft/feature-management-applicationinsights-browser` and `@microsoft/feature-management-applicationinsights-node` packages to publish feature evaluation event to Application Insights.
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Is there an issue or PR this can link to?


### Bug Fix
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Suggested change
### Bug Fix
### Bug Fixes


* Fixed a bug that caused error when calling `getFeatureFlags` and `listFeatureNames`.
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PR or issue link?


## 2.0.0-preview.3 - Oct 24, 2024

### Enhancements
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10 changes: 10 additions & 0 deletions releaseNotes/JavaScriptFeatureManagementApplicationInsightsBrowser.md
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[Source code][source_code] | [Package (npm)][package] | [Samples][samples]

## 2.0.0 - Jan 14, 2025

### Enhancements

This is the first stable release of the following features.

* `createTelemetryPublisher` API that enables feature evaluation telemetry to be published to Application Insights.
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@jimmyca15 jimmyca15 Jan 16, 2025 •
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Suggested change
* `createTelemetryPublisher` API that enables feature evaluation telemetry to be published to Application Insights.
* A `createTelemetryPublisher` function has been added that enables feature evaluation telemetry to be published to Application Insights.


* `TrackEvent` API that allows users to replace existing Application Insights TrackEvent calls to include targeting information in custom events sent to Application Insights.
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Suggested change
* `TrackEvent` API that allows users to replace existing Application Insights TrackEvent calls to include targeting information in custom events sent to Application Insights.
* A `TrackEvent` function has been added to enable sending custom events embedded with targeting information to Application Insights. This function is meant to be used in place of the Application Insights package's standard TrackEvent call.


## 2.0.0-preview.3 - Nov 8, 2024

* Updated `@microsoft/feature-management` dependency to `2.0.0-preview.3`. See the [release notes](./JavaScriptFeatureManagement.md) for more information on the changes.
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10 changes: 10 additions & 0 deletions releaseNotes/JavaScriptFeatureManagementApplicationInsightsNode.md
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[Source code][source_code] | [Package (npm)][package] | [Samples][samples]

## 2.0.0 - Jan 14, 2025

### Enhancements

This is the first stable release of the following features.

* `createTelemetryPublisher` API that enables feature evaluation telemetry to be published to Application Insights.

* `TrackEvent` API that allows users to replace existing Application Insights TrackEvent calls to include targeting information in custom events sent to Application Insights.

## 2.0.0-preview.3 - Nov 8, 2024

### Enhancements
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