getsentry · lforst · Jan 20, 2025 · Jan 20, 2025
diff --git a/docs/migration/v8-to-v9.md b/docs/migration/v8-to-v9.md
@@ -322,7 +322,7 @@ The following outlines deprecations that were introduced in version 8 of the SDK
 
 - **Passing `undefined` to `tracesSampleRate` / `tracesSampler` / `enableTracing` will be handled differently in v9**
 
-In v8, explicitly setting `tracesSampleRate` (even if it is set to `undefined`) will result in tracing being _enabled_, although no spans will be generated.
+In v8, explicitly setting `tracesSampleRate` (even if it is set to `undefined`) resulted in tracing being _enabled_, although no spans were generated.
 
 ```ts
 Sentry.init({
@@ -334,6 +334,8 @@ In v9, we will streamline this behavior so that passing `undefined` will result
 
 If you are relying on `undefined` being passed in and having tracing enabled because of this, you should update your config to set e.g. `tracesSampleRate: 0` instead, which will also enable tracing in v9.
 
+The `enableTracing` option was removed. In v9, to emulate `enableTracing: true`, set `tracesSampleRate: 1`. To emulate `enableTracing: false`, remove the `tracesSampleRate` and `tracesSampler` options (if configured).
+
 - **The `autoSessionTracking` option is deprecated.**
 
 To enable session tracking, it is recommended to unset `autoSessionTracking` and ensure that either, in browser environments the `browserSessionIntegration` is added, or in server environments the `httpIntegration` is added.

diff --git a/packages/astro/test/client/sdk.test.ts b/packages/astro/test/client/sdk.test.ts
@@ -52,7 +52,6 @@ describe('Sentry client SDK', () => {
       it.each([
         ['tracesSampleRate', { tracesSampleRate: 0 }],
         ['tracesSampler', { tracesSampler: () => 1.0 }],
-        ['enableTracing', { enableTracing: true }],
         ['no tracing option set', {}],
       ])('adds browserTracingIntegration if tracing is enabled via %s', (_, tracingOptions) => {
         init({
@@ -72,7 +71,7 @@ describe('Sentry client SDK', () => {
 
         init({
           dsn: 'https://public@dsn.ingest.sentry.io/1337',
-          enableTracing: true,
+          tracesSampleRate: 1,
         });
 
         const integrationsToInit = browserInit.mock.calls[0]![0]?.defaultIntegrations || [];
@@ -90,7 +89,7 @@ describe('Sentry client SDK', () => {
           integrations: [
             browserTracingIntegration({ finalTimeout: 10, instrumentNavigation: false, instrumentPageLoad: false }),
           ],
-          enableTracing: true,
+          tracesSampleRate: 1,
         });
 
         const browserTracing = getClient<BrowserClient>()?.getIntegrationByName('BrowserTracing');

diff --git a/packages/cloudflare/test/integrations/fetch.test.ts b/packages/cloudflare/test/integrations/fetch.test.ts
@@ -26,7 +26,6 @@ describe('WinterCGFetch instrumentation', () => {
 
     client = new FakeClient({
       dsn: 'https://public@dsn.ingest.sentry.io/1337',
-      enableTracing: true,
       tracesSampleRate: 1,
       integrations: [],
       transport: () => ({

diff --git a/packages/core/src/tracing/sampling.ts b/packages/core/src/tracing/sampling.ts
@@ -12,7 +12,7 @@ import { parseSampleRate } from '../utils/parseSampleRate';
  * sent to Sentry.
  */
 export function sampleSpan(
-  options: Pick<Options, 'tracesSampleRate' | 'tracesSampler' | 'enableTracing'>,
+  options: Pick<Options, 'tracesSampleRate' | 'tracesSampler'>,
   samplingContext: SamplingContext,
   sampleRand: number,
 ): [sampled: boolean, sampleRate?: number] {
@@ -21,7 +21,7 @@ export function sampleSpan(
     return [false];
   }
 
-  // we would have bailed already if neither `tracesSampler` nor `tracesSampleRate` nor `enableTracing` were defined, so one of these should
+  // we would have bailed already if neither `tracesSampler` nor `tracesSampleRate` were defined, so one of these should
   // work; prefer the hook if so
   let sampleRate;
   if (typeof options.tracesSampler === 'function') {
@@ -30,9 +30,6 @@ export function sampleSpan(
     sampleRate = samplingContext.parentSampled;
   } else if (typeof options.tracesSampleRate !== 'undefined') {
     sampleRate = options.tracesSampleRate;
-  } else {
-    // When `enableTracing === true`, we use a sample rate of 100%
-    sampleRate = 1;
   }
 
   // Since this is coming from the user (or from a function provided by the user), who knows what we might get.

diff --git a/packages/core/src/types-hoist/options.ts b/packages/core/src/types-hoist/options.ts
@@ -81,17 +81,6 @@ export interface ClientOptions<TO extends BaseTransportOptions = BaseTransportOp
    */
   tracesSampleRate?: number;
 
-  /**
-   * If this is enabled, spans and trace data will be generated and captured.
-   * This will set the `tracesSampleRate` to the recommended default of `1.0` if `tracesSampleRate` is undefined.
-   * Note that `tracesSampleRate` and `tracesSampler` take precedence over this option.
-   *
-   * @deprecated This option is deprecated and will be removed in the next major version. If you want to enable performance
-   * monitoring, please use the `tracesSampleRate` or `tracesSampler` options instead. If you wan't to disable performance
-   * monitoring, remove the `tracesSampler` and `tracesSampleRate` options.
-   */
-  enableTracing?: boolean;
-
   /**
    * If this is enabled, any spans started will always have their parent be the active root span,
    * if there is any active span.

diff --git a/packages/core/src/utils/hasTracingEnabled.ts b/packages/core/src/utils/hasTracingEnabled.ts
@@ -10,14 +10,17 @@ declare const __SENTRY_TRACING__: boolean | undefined;
  * Tracing is enabled when at least one of `tracesSampleRate` and `tracesSampler` is defined in the SDK config.
  */
 export function hasTracingEnabled(
-  maybeOptions?: Pick<Options, 'tracesSampleRate' | 'tracesSampler' | 'enableTracing'> | undefined,
+  maybeOptions?: Pick<Options, 'tracesSampleRate' | 'tracesSampler'> | undefined,
 ): boolean {
   if (typeof __SENTRY_TRACING__ === 'boolean' && !__SENTRY_TRACING__) {
     return false;
   }
 
   const client = getClient();
   const options = maybeOptions || client?.getOptions();
-  // eslint-disable-next-line deprecation/deprecation
-  return !!options && (options.enableTracing || options.tracesSampleRate != null || !!options.tracesSampler);
+  return (
+    !!options &&
+    // Note: This check is `!= null`, meaning "nullish"
+    (options.tracesSampleRate != null || !!options.tracesSampler)
+  );
 }
diff --git a/packages/core/test/lib/feedback.test.ts b/packages/core/test/lib/feedback.test.ts
@@ -314,7 +314,7 @@ describe('captureFeedback', () => {
       getDefaultTestClientOptions({
         dsn: 'https://dsn@ingest.f00.f00/1',
         enableSend: true,
-        enableTracing: true,
+        tracesSampleRate: 1,
         // We don't care about transactions here...
         beforeSendTransaction() {
           return null;
@@ -385,7 +385,7 @@ describe('captureFeedback', () => {
       getDefaultTestClientOptions({
         dsn: 'https://dsn@ingest.f00.f00/1',
         enableSend: true,
-        enableTracing: true,
+        tracesSampleRate: 1,
         // We don't care about transactions here...
         beforeSendTransaction() {
           return null;

diff --git a/packages/core/test/lib/tracing/errors.test.ts b/packages/core/test/lib/tracing/errors.test.ts
@@ -24,7 +24,7 @@ describe('registerErrorHandlers()', () => {
   beforeEach(() => {
     mockAddGlobalErrorInstrumentationHandler.mockClear();
     mockAddGlobalUnhandledRejectionInstrumentationHandler.mockClear();
-    const options = getDefaultTestClientOptions({ enableTracing: true });
+    const options = getDefaultTestClientOptions({ tracesSampleRate: 1 });
     const client = new TestClient(options);
     setCurrentClient(client);
     client.init();

diff --git a/packages/core/test/lib/tracing/trace.test.ts b/packages/core/test/lib/tracing/trace.test.ts
@@ -1684,7 +1684,7 @@ describe('withActiveSpan()', () => {
 
     setAsyncContextStrategy(undefined);
 
-    const options = getDefaultTestClientOptions({ enableTracing: true });
+    const options = getDefaultTestClientOptions({ tracesSampleRate: 1 });
     const client = new TestClient(options);
     setCurrentClient(client);
     client.init();

diff --git a/packages/core/test/lib/utils/hasTracingEnabled.test.ts b/packages/core/test/lib/utils/hasTracingEnabled.test.ts
@@ -5,28 +5,13 @@ describe('hasTracingEnabled', () => {
   const tracesSampleRate = 1;
   it.each([
     ['No options', undefined, false],
-    ['No tracesSampler or tracesSampleRate or enableTracing', {}, false],
+    ['No tracesSampler or tracesSampleRate', {}, false],
     ['With tracesSampler', { tracesSampler }, true],
     ['With tracesSampleRate', { tracesSampleRate }, true],
-    ['With enableTracing=true', { enableTracing: true }, true],
-    ['With enableTracing=false', { enableTracing: false }, false],
-    ['With enableTracing=undefined', { enableTracing: undefined }, false],
     ['With tracesSampleRate=undefined', { tracesSampleRate: undefined }, false],
     ['With tracesSampleRate=0', { tracesSampleRate: 0 }, true],
     ['With tracesSampler=undefined', { tracesSampler: undefined }, false],
-    ['With tracesSampler && enableTracing=false', { tracesSampler, enableTracing: false }, true],
-    ['With tracesSampleRate && enableTracing=false', { tracesSampler, enableTracing: false }, true],
     ['With tracesSampler and tracesSampleRate', { tracesSampler, tracesSampleRate }, true],
-    [
-      'With tracesSampler and tracesSampleRate and enableTracing=true',
-      { tracesSampler, tracesSampleRate, enableTracing: true },
-      true,
-    ],
-    [
-      'With tracesSampler and tracesSampleRate and enableTracing=false',
-      { tracesSampler, tracesSampleRate, enableTracing: false },
-      true,
-    ],
   ])(
     '%s',
     (_: string, input: Parameters<typeof hasTracingEnabled>[0], output: ReturnType<typeof hasTracingEnabled>) => {

@@ -141,7 +141,7 @@ describe('sendFeedback', () => {
   });
 
   it('applies active span data to feedback', async () => {
-    mockSdk({ sentryOptions: { enableTracing: true } });
+    mockSdk({ sentryOptions: { tracesSampleRate: 1 } });
     const mockTransport = jest.spyOn(getClient()!.getTransport()!, 'send');
 
     await startSpan({ name: 'test span' }, () => {
@@ -196,7 +196,7 @@ describe('sendFeedback', () => {
   });
 
   it('applies scope data to feedback', async () => {
-    mockSdk({ sentryOptions: { enableTracing: true } });
+    mockSdk({ sentryOptions: { tracesSampleRate: 1 } });
     const mockTransport = jest.spyOn(getClient()!.getTransport()!, 'send');
 
     await withIsolationScope(isolationScope => {

diff --git a/packages/node/test/integration/breadcrumbs.test.ts b/packages/node/test/integration/breadcrumbs.test.ts
@@ -99,7 +99,7 @@ describe('Integration | breadcrumbs', () => {
     const beforeSend = jest.fn(() => null);
     const beforeBreadcrumb = jest.fn(breadcrumb => breadcrumb);
 
-    mockSdkInit({ beforeSend, beforeBreadcrumb, beforeSendTransaction, enableTracing: true });
+    mockSdkInit({ beforeSend, beforeBreadcrumb, beforeSendTransaction, tracesSampleRate: 1 });
 
     const client = getClient() as NodeClient;
 
@@ -144,7 +144,7 @@ describe('Integration | breadcrumbs', () => {
     const beforeSend = jest.fn(() => null);
     const beforeBreadcrumb = jest.fn(breadcrumb => breadcrumb);
 
-    mockSdkInit({ beforeSend, beforeBreadcrumb, beforeSendTransaction, enableTracing: true });
+    mockSdkInit({ beforeSend, beforeBreadcrumb, beforeSendTransaction, tracesSampleRate: 1 });
 
     const client = getClient() as NodeClient;
 
@@ -196,7 +196,7 @@ describe('Integration | breadcrumbs', () => {
     const beforeSend = jest.fn(() => null);
     const beforeBreadcrumb = jest.fn(breadcrumb => breadcrumb);
 
-    mockSdkInit({ beforeSend, beforeBreadcrumb, beforeSendTransaction, enableTracing: true });
+    mockSdkInit({ beforeSend, beforeBreadcrumb, beforeSendTransaction, tracesSampleRate: 1 });
 
     const client = getClient() as NodeClient;
 
@@ -237,7 +237,7 @@ describe('Integration | breadcrumbs', () => {
     const beforeSend = jest.fn(() => null);
     const beforeBreadcrumb = jest.fn(breadcrumb => breadcrumb);
 
-    mockSdkInit({ beforeSend, beforeBreadcrumb, beforeSendTransaction, enableTracing: true });
+    mockSdkInit({ beforeSend, beforeBreadcrumb, beforeSendTransaction, tracesSampleRate: 1 });
 
     const client = getClient() as NodeClient;
 
@@ -295,7 +295,7 @@ describe('Integration | breadcrumbs', () => {
     const beforeSend = jest.fn(() => null);
     const beforeBreadcrumb = jest.fn(breadcrumb => breadcrumb);
 
-    mockSdkInit({ beforeSend, beforeBreadcrumb, beforeSendTransaction, enableTracing: true });
+    mockSdkInit({ beforeSend, beforeBreadcrumb, beforeSendTransaction, tracesSampleRate: 1 });
 
     const client = getClient() as NodeClient;
 

diff --git a/packages/node/test/integration/scope.test.ts b/packages/node/test/integration/scope.test.ts
@@ -14,12 +14,12 @@ describe('Integration | Scope', () => {
   describe.each([
     ['with tracing', true],
     ['without tracing', false],
-  ])('%s', (_name, enableTracing) => {
+  ])('%s', (_name, tracingEnabled) => {
     it('correctly syncs OTEL context & Sentry hub/scope', async () => {
       const beforeSend = jest.fn(() => null);
       const beforeSendTransaction = jest.fn(() => null);
 
-      mockSdkInit({ enableTracing, beforeSend, beforeSendTransaction });
+      mockSdkInit({ tracesSampleRate: tracingEnabled ? 1 : 0, beforeSend, beforeSendTransaction });
 
       const client = getClient() as NodeClient;
 
@@ -42,7 +42,7 @@ describe('Integration | Scope', () => {
           scope2.setTag('tag3', 'val3');
 
           Sentry.startSpan({ name: 'outer' }, span => {
-            expect(getCapturedScopesOnSpan(span).scope).toBe(enableTracing ? scope2 : undefined);
+            expect(getCapturedScopesOnSpan(span).scope).toBe(tracingEnabled ? scope2 : undefined);
 
             spanId = span.spanContext().spanId;
             traceId = span.spanContext().traceId;
@@ -92,7 +92,7 @@ describe('Integration | Scope', () => {
         },
       );
 
-      if (enableTracing) {
+      if (tracingEnabled) {
         expect(beforeSendTransaction).toHaveBeenCalledTimes(1);
         // Note: Scope for transaction is taken at `start` time, not `finish` time
         expect(beforeSendTransaction).toHaveBeenCalledWith(
@@ -133,7 +133,7 @@ describe('Integration | Scope', () => {
       const beforeSend = jest.fn(() => null);
       const beforeSendTransaction = jest.fn(() => null);
 
-      mockSdkInit({ enableTracing, beforeSend, beforeSendTransaction });
+      mockSdkInit({ tracesSampleRate: tracingEnabled ? 1 : 0, beforeSend, beforeSendTransaction });
 
       const client = getClient() as NodeClient;
       const rootScope = getCurrentScope();
@@ -232,7 +232,7 @@ describe('Integration | Scope', () => {
         },
       );
 
-      if (enableTracing) {
+      if (tracingEnabled) {
         expect(beforeSendTransaction).toHaveBeenCalledTimes(2);
       }
     });

diff --git a/packages/node/test/integration/transactions.test.ts b/packages/node/test/integration/transactions.test.ts
@@ -22,7 +22,7 @@ describe('Integration | Transactions', () => {
     });
 
     mockSdkInit({
-      enableTracing: true,
+      tracesSampleRate: 1,
       beforeSendTransaction,
       release: '8.0.0',
     });
@@ -164,7 +164,7 @@ describe('Integration | Transactions', () => {
   it('correctly creates concurrent transaction & spans', async () => {
     const beforeSendTransaction = jest.fn(() => null);
 
-    mockSdkInit({ enableTracing: true, beforeSendTransaction });
+    mockSdkInit({ tracesSampleRate: 1, beforeSendTransaction });
 
     const client = Sentry.getClient()!;
 
@@ -309,7 +309,7 @@ describe('Integration | Transactions', () => {
   it('correctly creates concurrent transaction & spans when using native OTEL tracer', async () => {
     const beforeSendTransaction = jest.fn(() => null);
 
-    mockSdkInit({ enableTracing: true, beforeSendTransaction });
+    mockSdkInit({ tracesSampleRate: 1, beforeSendTransaction });
 
     const client = Sentry.getClient<Sentry.NodeClient>();
 
@@ -457,7 +457,7 @@ describe('Integration | Transactions', () => {
       traceFlags: TraceFlags.SAMPLED,
     };
 
-    mockSdkInit({ enableTracing: true, beforeSendTransaction });
+    mockSdkInit({ tracesSampleRate: 1, beforeSendTransaction });
 
     const client = Sentry.getClient()!;
 
@@ -562,7 +562,7 @@ describe('Integration | Transactions', () => {
     const logs: unknown[] = [];
     jest.spyOn(logger, 'log').mockImplementation(msg => logs.push(msg));
 
-    mockSdkInit({ enableTracing: true, beforeSendTransaction });
+    mockSdkInit({ tracesSampleRate: 1, beforeSendTransaction });
 
     const provider = getProvider();
     const multiSpanProcessor = provider?.activeSpanProcessor as
@@ -641,7 +641,7 @@ describe('Integration | Transactions', () => {
     jest.spyOn(logger, 'log').mockImplementation(msg => logs.push(msg));
 
     mockSdkInit({
-      enableTracing: true,
+      tracesSampleRate: 1,
       beforeSendTransaction,
       maxSpanWaitDuration: 100 * 60,
     });

diff --git a/packages/node/test/sdk/api.test.ts b/packages/node/test/sdk/api.test.ts
@@ -22,7 +22,7 @@ describe('withActiveSpan()', () => {
 
   it('should create child spans when calling startSpan within the callback', async () => {
     const beforeSendTransaction = jest.fn(() => null);
-    mockSdkInit({ enableTracing: true, beforeSendTransaction });
+    mockSdkInit({ tracesSampleRate: 1, beforeSendTransaction });
     const client = getClient();
 
     const inactiveSpan = startInactiveSpan({ name: 'inactive-span' });
@@ -70,7 +70,7 @@ describe('withActiveSpan()', () => {
       transactions.push(event);
       return null;
     });
-    mockSdkInit({ enableTracing: true, beforeSendTransaction });
+    mockSdkInit({ tracesSampleRate: 1, beforeSendTransaction });
     const client = getClient();
 
     startSpan({ name: 'parent-span' }, () => {

diff --git a/packages/node/test/sdk/init.test.ts b/packages/node/test/sdk/init.test.ts
@@ -108,7 +108,7 @@ describe('init()', () => {
       init({
         dsn: PUBLIC_DSN,
         integrations: mockIntegrations,
-        enableTracing: true,
+        tracesSampleRate: 1,
       });
 
       expect(mockIntegrations[0]?.setupOnce as jest.Mock).toHaveBeenCalledTimes(1);