[main] [Possible Break] Removed Tags[] from ITelemetryItem as this was breaking later versions of TypeScript by using the intersection type instead of union type for tags property #2258

AISKU/API.md

@@ -205,7 +205,7 @@ interface ITelemetryItem {
     /**
      * Part A custom extensions
      */
-    tags?: Tags[];
+    tags?: Tags; // Tags[] is deprecated since 4.1.0
 
     /**
      * Telemetry type used for part B

RELEASES.md

@@ -2,6 +2,27 @@
 
 > Note: ES3/IE8 compatibility will be removed in the future v3.x.x releases (scheduled for mid-late 2022), so if you need to retain ES3 compatibility you will need to remain on the 2.x.x versions of the SDK or your runtime will need install polyfill's to your ES3 environment before loading / initializing the SDK.
 
+## 4.0.1 (Feb 12nd, 2024)
+
+### Potential break change
+
+This release contains a potential break change with 'tags' type [change](https://github.com/microsoft/ApplicationInsights-JS/pull/2269)
+
+#### Old
+```ts
+    tags?: Tags & Tags[]; 
+```
+#### New
+```ts
+    tags?: Tags;
+
+```
+
+### Changelog
+
+
+
+
 ## 3.0.7 (Dec 14th, 2023)
 
 ### Changelog

shared/AppInsightsCore/src/JavaScriptSDK.Interfaces/ITelemetryItem.ts

@@ -34,7 +34,7 @@ export interface ITelemetryItem {
     /**
      * System context property extensions that are not global (not in ctx)
      */
-    tags?: Tags & Tags[]; // Tags[] will be deprecated.
+    tags?: Tags; // Tags[] is deprecated since 4.1.0
 
     /**
      * Custom data

tools/applicationinsights-web-snippet/src/applicationinsights-web-snippet.ts

@@ -18,7 +18,7 @@ function getSdkLoaderScript(config: SdkLoaderConfig) {
         snippet = webSnippetCs.replace("YOUR_CONNECTION_STRING", config.connectionString);
     } else if (config && config.instrumentationKey) {
         snippet = webSnippet.replace("InstrumentationKey=INSTRUMENTATION_KEY", config.instrumentationKey);
-    } 
+    }
     return snippet;
 }