[Release] Increase version to 3.4.5

AISKU/README.md

@@ -34,6 +34,7 @@ See [Breaking Changes](https://microsoft.github.io/ApplicationInsights-JS/upgrad
 | Version | Full Size | Raw Minified | GZip Size
 |---------|-----------|--------------|-------------
 | [<nightly3>](https://github.com/microsoft/ApplicationInsights-JS/tree/main/AISKU)  | [![full size size](https://js.monitor.azure.com/nightly/ai.3-nightly3.js.svg)](https://js.monitor.azure.com/nightly/ai.3-nightly3.js.svg)| ![minified size size](https://js.monitor.azure.com/nightly/ai.3-nightly3.min.js.svg) | ![gzip size](https://js.monitor.azure.com/nightly/ai.3-nightly3.min.js.gzip.svg)
+| 3.4.5:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.3.4.5.js.svg)](https://js.monitor.azure.com/scripts/b/ai.3.4.5.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.3.4.5.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.3.4.5.min.js.gzip.svg)
 | 3.4.4:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.3.4.4.js.svg)](https://js.monitor.azure.com/scripts/b/ai.3.4.4.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.3.4.4.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.3.4.4.min.js.gzip.svg)
 | 3.4.3:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.3.4.3.js.svg)](https://js.monitor.azure.com/scripts/b/ai.3.4.3.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.3.4.3.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.3.4.3.min.js.gzip.svg)
 | 3.4.2:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.3.4.2.js.svg)](https://js.monitor.azure.com/scripts/b/ai.3.4.2.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.3.4.2.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.3.4.2.min.js.gzip.svg)
@@ -58,11 +59,6 @@ See [Breaking Changes](https://microsoft.github.io/ApplicationInsights-JS/upgrad
 | 3.1.1:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.3.1.1.js.svg)](https://js.monitor.azure.com/scripts/b/ai.3.1.1.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.3.1.1.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.3.1.1.min.js.gzip.svg)
 | 3.1.0:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.3.1.0.js.svg)](https://js.monitor.azure.com/scripts/b/ai.3.1.0.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.3.1.0.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.3.1.0.min.js.gzip.svg)
 | 3.0.9:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.3.0.9.js.svg)](https://js.monitor.azure.com/scripts/b/ai.3.0.9.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.3.0.9.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.3.0.8.min.js.gzip.svg)
-| 3.0.8:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.3.0.8.js.svg)](https://js.monitor.azure.com/scripts/b/ai.3.0.8.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.3.0.8.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.3.0.8.min.js.gzip.svg)
-| 3.0.7:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.3.0.7.js.svg)](https://js.monitor.azure.com/scripts/b/ai.3.0.7.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.3.0.7.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.3.0.7.min.js.gzip.svg)
-| 3.0.6:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.3.0.6.js.svg)](https://js.monitor.azure.com/scripts/b/ai.3.0.6.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.3.0.6.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.3.0.5.min.js.gzip.svg)
-| 3.0.5:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.3.0.5.js.svg)](https://js.monitor.azure.com/scripts/b/ai.3.0.5.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.3.0.5.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.3.0.5.min.js.gzip.svg)
-| 3.0.4:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.3.0.4.js.svg)](https://js.monitor.azure.com/scripts/b/ai.3.0.4.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.3.0.4.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.3.0.4.min.js.gzip.svg)
 | [<nightly>](https://github.com/microsoft/ApplicationInsights-JS/tree/master/AISKU)  | [![full size size](https://js.monitor.azure.com/nightly/ai.2-nightly.js.svg)](https://js.monitor.azure.com/nightly/ai.2-nightly.js.svg)| ![minified size size](https://js.monitor.azure.com/nightly/ai.2-nightly.min.js.svg) | ![gzip size](https://js.monitor.azure.com/nightly/ai.2-nightly.min.js.gzip.svg)
 | 2.8.18:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.2.8.18.js.svg)](https://js.monitor.azure.com/scripts/b/ai.2.8.18.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.2.8.18.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.2.8.18.min.js.gzip.svg)
 | 2.8.17:  | [![full size size](https://js.monitor.azure.com/scripts/b/ai.2.8.17.js.svg)](https://js.monitor.azure.com/scripts/b/ai.2.8.17.js.svg)| ![minified size size](https://js.monitor.azure.com/scripts/b/ai.2.8.17.min.js.svg) | ![gzip size](https://js.monitor.azure.com/scripts/b/ai.2.8.17.min.js.gzip.svg)

AISKU/Tests/Perf/src/AISKUPerf.ts

@@ -19,7 +19,7 @@ export class AppInsightsInitPerfTestClass {
          * should update version after new release
          * version with doperf(): after 2.5.6
          * */
-        var defaultVer = "3.4.4";
+        var defaultVer = "3.4.5";
         this.version = ver? ver:this._getQueryParameterVersion(defaultVer); 
         this.perfEventsBuffer = [];
         this.perfEventWaitBuffer = [];

AISKU/Tests/Unit/src/AISKUSize.Tests.ts

@@ -60,7 +60,7 @@ export class AISKUSizeCheck extends AITestClass {
     private readonly MAX_BUNDLE_DEFLATE_SIZE = 74;
     private readonly rawFilePath = "../dist/es5/applicationinsights-web.min.js";
     // Automatically updated by version scripts
-    private readonly currentVer = "3.4.4";
+    private readonly currentVer = "3.4.5";
     private readonly prodFilePath = `../browser/es5/ai.${this.currentVer[0]}.min.js`;
 
     public testInitialize() {

AISKU/Tests/Unit/src/CdnPackaging.tests.ts

@@ -16,7 +16,7 @@ const enum CdnFormat {
 
 export class CdnPackagingChecks extends AITestClass {
     // Automatically updated by version scripts
-    private readonly currentVer = "3.4.4";
+    private readonly currentVer = "3.4.5";
 
     public testInitialize() {
     }

AISKU/Tests/es6-module-type-check/package.json

@@ -1,7 +1,7 @@
 {
     "name": "@microsoft/applicationinsights-test-module-type-check",
     "author": "Microsoft Application Insights Team and Contributors",
-    "version": "3.4.4",
+    "version": "3.4.5",
     "description": "Microsoft Application Insights ES6 Module and Type check Example",
     "homepage": "https://github.com/microsoft/ApplicationInsights-JS#readme",
     "keywords": [
@@ -32,7 +32,7 @@
         "tslib": ">= 1.0.0"
     },
     "dependencies": {
-        "@microsoft/applicationinsights-core-js": "3.4.4",
-        "@microsoft/applicationinsights-web": "3.4.4"
+        "@microsoft/applicationinsights-core-js": "3.4.5",
+        "@microsoft/applicationinsights-web": "3.4.5"
     }
 }

AISKU/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@microsoft/applicationinsights-web",
-    "version": "3.4.4",
+    "version": "3.4.5",
     "description": "Microsoft Application Insights JavaScript SDK - Web",
     "homepage": "https://github.com/microsoft/ApplicationInsights-JS#readme",
     "author": "Microsoft Application Insights Team",
@@ -32,7 +32,7 @@
     },
     "devDependencies": {
         "@microsoft/ai-test-framework": "0.0.1",
-        "@microsoft/applicationinsights-offlinechannel-js": "0.4.4",
+        "@microsoft/applicationinsights-offlinechannel-js": "0.4.5",
         "@microsoft/applicationinsights-rollup-plugin-uglify3-js": "1.0.0",
         "@microsoft/applicationinsights-rollup-es5": "1.0.2",
         "sinon": "^7.3.1",
@@ -71,12 +71,12 @@
     "dependencies": {
         "@microsoft/dynamicproto-js": "^2.0.3",
         "@microsoft/applicationinsights-shims": "3.0.1",
-        "@microsoft/applicationinsights-analytics-js": "3.4.4",
-        "@microsoft/applicationinsights-channel-js": "3.4.4",
-        "@microsoft/applicationinsights-cfgsync-js": "3.4.4",
-        "@microsoft/applicationinsights-core-js": "3.4.4",
-        "@microsoft/applicationinsights-dependencies-js": "3.4.4",
-        "@microsoft/applicationinsights-properties-js": "3.4.4",
+        "@microsoft/applicationinsights-analytics-js": "3.4.5",
+        "@microsoft/applicationinsights-channel-js": "3.4.5",
+        "@microsoft/applicationinsights-cfgsync-js": "3.4.5",
+        "@microsoft/applicationinsights-core-js": "3.4.5",
+        "@microsoft/applicationinsights-dependencies-js": "3.4.5",
+        "@microsoft/applicationinsights-properties-js": "3.4.5",
         "@nevware21/ts-utils": ">= 0.14.0 < 2.x",
         "@nevware21/ts-async": ">= 0.5.5 < 0.6.0"
     },

AISKULight/Tests/Unit/src/AISKULightSize.Tests.ts

@@ -56,7 +56,7 @@ export class AISKULightSizeCheck extends AITestClass {
     private readonly MAX_RAW_DEFLATE_SIZE = 44;
     private readonly MAX_BUNDLE_DEFLATE_SIZE = 44;
     private readonly rawFilePath = "../dist/es5/applicationinsights-web-basic.min.js";
-    private readonly currentVer = "3.4.4";
+    private readonly currentVer = "3.4.5";
     private readonly prodFilePath = `../browser/es5/aib.${this.currentVer[0]}.min.js`;
 
     public testInitialize() {

AISKULight/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@microsoft/applicationinsights-web-basic",
-    "version": "3.4.4",
+    "version": "3.4.5",
     "description": "Microsoft Application Insights JavaScript SDK - Web Basic",
     "homepage": "https://github.com/microsoft/ApplicationInsights-JS#readme",
     "author": "Microsoft Application Insights Team",
@@ -65,8 +65,8 @@
     "dependencies": {
         "@microsoft/dynamicproto-js": "^2.0.3",
         "@microsoft/applicationinsights-shims": "3.0.1",
-        "@microsoft/applicationinsights-channel-js": "3.4.4",
-        "@microsoft/applicationinsights-core-js": "3.4.4",
+        "@microsoft/applicationinsights-channel-js": "3.4.5",
+        "@microsoft/applicationinsights-core-js": "3.4.5",
         "@nevware21/ts-utils": ">= 0.14.0 < 2.x",
         "@nevware21/ts-async": ">= 0.5.5 < 0.6.0"
     },

RELEASES.md

@@ -4,6 +4,29 @@
 
 <!-- ## Unreleased Changes -->
 
+## 3.4.5 (October 5th, 2026)
+
+This release enables internal SDK network statistics and routes them to a dedicated SDK Stats ingestion endpoint. The `@microsoft/1ds-post-js` channel is numbered 4.4.5 and requires v3.4.5.
+
+### Significant Changes (since 3.4.4)
+
+- **Internal SDK Stats**: The full SDK now records request successes, failures, retries, throttling, and request duration. Counters are persisted in session storage by customer instrumentation key and endpoint, with a default collection interval of one hour (`stats.shrtInt`, in seconds).
+- **Dedicated Ingestion and Dynamic Configuration**: Internal SDK Stats use a separate core and sender, rather than the customer's telemetry pipeline. Sending requires `stats.cfgUrl`, `stats.iKey`, and an enabled remote configuration that supplies the destination host. EU customer endpoints use the EU-prefixed configuration host. Configuration and sampling can be updated at runtime, and counters are retained while remote configuration is unavailable.
+- **Feature Throttling**: Added `ThrottleMgr.useFeature()` and string-keyed `throttleMgrCfg` entries for feature operations. Internal SDK Stats have a dedicated daily throttle, separate from internal diagnostic messages. Throttle sampling now honors a zero rate, interval rules are evaluated per configuration, and long-lived instances can send again on the next eligible UTC day.
+- **Sender Unload Reliability**: Late network responses no longer access the cleared core configuration when looking up internal SDK Stats after unload.
+
+### Potential behavioral changes
+
+The internal SDK Stats manager is enabled by default, but it does not send statistics until the required local or CDN-delivered configuration is available and the remote configuration enables sending. Disable this feature with `featureOptIn: { sdkStats: { mode: FeatureOptInMode.disable } }`. The lowercase `sdkStats` feature is separate from the existing customer-facing `SdkStats` feature and its `sdkStats.int` collection interval.
+
+Internal SDK Stats bypass customer telemetry initializers and plugins. Applications that use those hooks to inspect, modify, or filter customer telemetry should use the internal SDK Stats feature flag to opt out instead.
+
+### Changelog
+
+- [#2741](https://github.com/microsoft/ApplicationInsights-JS/pull/2741) Enable SDK Stats and route to the SDK Stats ingestion endpoint
+
+**Full Changelog**: https://github.com/microsoft/ApplicationInsights-JS/compare/3.4.4...3.4.5
+
 ## 3.4.4 (September 8th, 2026)
 
 This is a maintenance release for the 3.4.x version line containing runtime reliability and bundler compatibility fixes, build tooling and dependency security hardening, documentation corrections, and a test reliability fix. There are no SDK API changes. The `@microsoft/1ds-post-js` channel is numbered 4.4.4 and requires v3.4.4.

channels/1ds-post-js/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@microsoft/1ds-post-js",
-    "version": "4.4.4",
+    "version": "4.4.5",
     "description": "Microsoft Application Insights JavaScript SDK - 1ds-post-channel-js",
     "author": "Microsoft Application Insights Team",
     "homepage": "https://github.com/microsoft/ApplicationInsights-JS#readme",
@@ -27,7 +27,7 @@
     "dependencies": {
         "@microsoft/applicationinsights-shims": "3.0.1",
         "@microsoft/dynamicproto-js": "^2.0.3",
-        "@microsoft/applicationinsights-core-js": "3.4.4",
+        "@microsoft/applicationinsights-core-js": "3.4.5",
         "@nevware21/ts-utils": ">= 0.14.0 < 2.x",
         "@nevware21/ts-async": ">= 0.5.5 < 0.6.0"
     },

channels/applicationinsights-channel-js/Tests/Unit/src/InternalSdkStats.tests.ts

@@ -1,12 +1,12 @@
 import { AITestClass, Assert, PollingAssert } from "@microsoft/ai-test-framework";
 import {
     AppInsightsCore, createStatsMgr, FeatureOptInMode, IAppInsightsCore, IConfiguration, IInternalSdkStatsState,
-    IStatsMgr, ITelemetryItem, TransportType
+    isBeaconsSupported, IStatsMgr, ITelemetryItem, TransportType
 } from "@microsoft/applicationinsights-core-js";
-import { Sender } from "../../../src/Sender";
+import { objDefine } from "@nevware21/ts-utils";
 import { SinonSpy } from "sinon";
+import { Sender } from "../../../src/Sender";
 import { ISenderConfig } from "../../../types/applicationinsights-channel-js";
-import { isBeaconsSupported } from "@microsoft/applicationinsights-core-js";
 
 const STATS_TEST_CFG_URL = "https://tst-data.stats.monitor.azure.com/cfg/v1.json";
 const STATS_TEST_HOST = "tst-data.stats.monitor.azure.com";
@@ -243,6 +243,44 @@ export class InternalSdkStatsTests extends AITestClass {
         });
 
 
+        this.testCase({
+            name: "SDK Stats ignores pending XHR responses after core unload",
+            useFakeTimers: true,
+            useFakeServer: true,
+            fakeServerAutoRespond: false,
+            test: () => {
+                const config = this.createSenderConfig(TransportType.Xhr);
+                const { core, sender } = this.initializeCoreAndSender(config, "000e0000-e000-0000-a000-000000000000");
+                const getStatsSpy = this.sandbox.spy(core, "getSdkStats");
+                const successSpy = this.sandbox.spy(sender, "_onSuccess");
+                const telemetryItem: ITelemetryItem = {
+                    name: "pending item",
+                    baseType: "EventData",
+                    baseData: { name: "pending item" }
+                };
+
+                this.processTelemetryAndFlush(sender, telemetryItem);
+                this.processTelemetryAndFlush(sender, telemetryItem);
+                const requests = this.activeXhrRequests;
+                Assert.equal(2, requests.length, "Two XHR requests should be pending");
+                for (let lp = 0; lp < requests.length; lp++) {
+                    objDefine(requests[lp], "responseURL", { v: config.endpointUrl });
+                }
+
+                sender.pause();
+                sender._buffer.clear();
+                core.unload(false);
+                Assert.equal(null, sender.core, "The sender core should be cleared during unload");
+
+                // The first late response restores the endpoint, so the second reaches the SDK Stats lookup.
+                requests[0].respond(200, {}, "");
+                requests[1].respond(200, {}, "");
+                Assert.equal(2, successSpy.callCount, "Both late responses should complete without throwing");
+                Assert.equal(0, getStatsSpy.callCount, "Late responses should not access the unloaded stats manager");
+                Assert.equal(0, this.internalSdkStatsCountSpy.callCount, "Late responses should not record SDK Stats");
+            }
+        });
+
         this.testCase({
             name: "SDK Stats increments success count for xhr sender",
             useFakeTimers: true,

channels/applicationinsights-channel-js/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@microsoft/applicationinsights-channel-js",
-    "version": "3.4.4",
+    "version": "3.4.5",
     "description": "Microsoft Application Insights JavaScript SDK Channel",
     "homepage": "https://github.com/microsoft/ApplicationInsights-JS#readme",
     "author": "Microsoft Application Insights Team",
@@ -64,7 +64,7 @@
     "dependencies": {
         "@microsoft/dynamicproto-js": "^2.0.3",
         "@microsoft/applicationinsights-shims": "3.0.1",
-        "@microsoft/applicationinsights-core-js": "3.4.4",
+        "@microsoft/applicationinsights-core-js": "3.4.5",
         "@nevware21/ts-utils": ">= 0.14.0 < 2.x",
         "@nevware21/ts-async": ">= 0.5.5 < 0.6.0"
     },

channels/applicationinsights-channel-js/src/Sender.ts

@@ -675,19 +675,22 @@ export class Sender extends BaseTelemetryPlugin implements IChannelControls {
             }
 
             function _getSdkStats() {
-                let statsCfg = _self.core.config.stats;
-                let snp = statsCfg && statsCfg.snp;
-                let internalSdkStatsConfig: IInternalSdkStatsState = {
-                    cKey: _self._senderConfig.instrumentationKey,
-                    endpoint: _endpointUrl,
-                    sdkVer: "javascript:" + EnvelopeCreator.Version + (snp ? ":snp" + snp : "")
-                };
-
                 let core = _self.core;
 
-                // During page unload the core may have been cleared and some async events may not have been sent yet
-                // resulting in the core being null. In this case we don't want to create a SDK Stats instance
-                return core && core.getSdkStats ? core.getSdkStats(internalSdkStatsConfig) : null;
+                // Async send responses can arrive after teardown has cleared the core.
+                if (core && core.getSdkStats) {
+                    let statsCfg = core.config.stats;
+                    let snp = statsCfg && statsCfg.snp;
+                    let internalSdkStatsConfig: IInternalSdkStatsState = {
+                        cKey: _self._senderConfig.instrumentationKey,
+                        endpoint: _endpointUrl,
+                        sdkVer: "javascript:" + EnvelopeCreator.Version + (snp ? ":snp" + snp : "")
+                    };
+
+                    return core.getSdkStats(internalSdkStatsConfig);
+                }
+
+                return null;
             }
 
             /**

channels/offline-channel-js/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@microsoft/applicationinsights-offlinechannel-js",
-    "version": "0.4.4",
+    "version": "0.4.5",
     "description": "Microsoft Application Insights JavaScript SDK Offline Channel",
     "homepage": "https://github.com/microsoft/ApplicationInsights-JS#readme",
     "author": "Microsoft Application Insights Team",
@@ -31,7 +31,7 @@
     "dependencies": {
         "@microsoft/dynamicproto-js": "^2.0.3",
         "@microsoft/applicationinsights-shims": "3.0.1",
-        "@microsoft/applicationinsights-core-js": "3.4.4",
+        "@microsoft/applicationinsights-core-js": "3.4.5",
         "@nevware21/ts-utils": ">= 0.14.0 < 2.x",
         "@nevware21/ts-async": ">= 0.5.5 < 0.6.0"
     },