diff --git a/packages/react-reconciler/src/DebugTracing.js b/packages/react-reconciler/src/DebugTracing.js
index 075a705f03bd3..5ecb696b575da 100644
--- a/packages/react-reconciler/src/DebugTracing.js
+++ b/packages/react-reconciler/src/DebugTracing.js
@@ -7,7 +7,6 @@
  * @flow
  */
 
-import type {Lane, Lanes} from './ReactFiberLane';
 import type {Wakeable} from 'shared/ReactTypes';
 
 import {enableDebugTracing} from 'shared/ReactFeatureFlags';
@@ -18,10 +17,6 @@ let nativeConsoleLog: null | Function = null;
 const pendingGroupArgs: Array<any> = [];
 let printedGroupIndex: number = -1;
 
-function formatLanes(laneOrLanes: Lane | Lanes): string {
-  return '0b' + (laneOrLanes: any).toString(2).padStart(31, '0');
-}
-
 function group(...groupArgs): void {
   pendingGroupArgs.push(groupArgs);
 
@@ -62,11 +57,11 @@ function log(...logArgs): void {
 const REACT_LOGO_STYLE =
   'background-color: #20232a; color: #61dafb; padding: 0 2px;';
 
-export function logCommitStarted(lanes: Lanes): void {
+export function logCommitStarted(priorityLabel: string): void {
   if (__DEV__) {
     if (enableDebugTracing) {
       group(
-        `%c⚛️%c commit%c (${formatLanes(lanes)})`,
+        `%c⚛️%c commit%c (priority: ${priorityLabel})`,
         REACT_LOGO_STYLE,
         '',
         'font-weight: normal;',
@@ -133,11 +128,11 @@ export function logComponentSuspended(
   }
 }
 
-export function logLayoutEffectsStarted(lanes: Lanes): void {
+export function logLayoutEffectsStarted(priorityLabel: string): void {
   if (__DEV__) {
     if (enableDebugTracing) {
       group(
-        `%c⚛️%c layout effects%c (${formatLanes(lanes)})`,
+        `%c⚛️%c layout effects%c (priority: ${priorityLabel})`,
         REACT_LOGO_STYLE,
         '',
         'font-weight: normal;',
@@ -154,11 +149,11 @@ export function logLayoutEffectsStopped(): void {
   }
 }
 
-export function logPassiveEffectsStarted(lanes: Lanes): void {
+export function logPassiveEffectsStarted(priorityLabel: string): void {
   if (__DEV__) {
     if (enableDebugTracing) {
       group(
-        `%c⚛️%c passive effects%c (${formatLanes(lanes)})`,
+        `%c⚛️%c passive effects%c (priority: ${priorityLabel})`,
         REACT_LOGO_STYLE,
         '',
         'font-weight: normal;',
@@ -175,11 +170,11 @@ export function logPassiveEffectsStopped(): void {
   }
 }
 
-export function logRenderStarted(lanes: Lanes): void {
+export function logRenderStarted(priorityLabel: string): void {
   if (__DEV__) {
     if (enableDebugTracing) {
       group(
-        `%c⚛️%c render%c (${formatLanes(lanes)})`,
+        `%c⚛️%c render%c (priority: ${priorityLabel})`,
         REACT_LOGO_STYLE,
         '',
         'font-weight: normal;',
@@ -198,12 +193,12 @@ export function logRenderStopped(): void {
 
 export function logForceUpdateScheduled(
   componentName: string,
-  lane: Lane,
+  priorityLabel: string,
 ): void {
   if (__DEV__) {
     if (enableDebugTracing) {
       log(
-        `%c⚛️%c ${componentName} forced update %c(${formatLanes(lane)})`,
+        `%c⚛️%c ${componentName} forced update %c(priority: ${priorityLabel})`,
         REACT_LOGO_STYLE,
         'color: #db2e1f; font-weight: bold;',
         '',
@@ -214,13 +209,13 @@ export function logForceUpdateScheduled(
 
 export function logStateUpdateScheduled(
   componentName: string,
-  lane: Lane,
+  priorityLabel: string,
   payloadOrAction: any,
 ): void {
   if (__DEV__) {
     if (enableDebugTracing) {
       log(
-        `%c⚛️%c ${componentName} updated state %c(${formatLanes(lane)})`,
+        `%c⚛️%c ${componentName} updated state %c(priority: ${priorityLabel})`,
         REACT_LOGO_STYLE,
         'color: #01a252; font-weight: bold;',
         '',
diff --git a/packages/react-reconciler/src/ReactFiberClassComponent.old.js b/packages/react-reconciler/src/ReactFiberClassComponent.old.js
index 175f8fd246b8c..329e9cb9bb89e 100644
--- a/packages/react-reconciler/src/ReactFiberClassComponent.old.js
+++ b/packages/react-reconciler/src/ReactFiberClassComponent.old.js
@@ -16,7 +16,6 @@ import {Update, Snapshot} from './ReactSideEffectTags';
 import {
   debugRenderPhaseSideEffectsForStrictMode,
   disableLegacyContext,
-  enableDebugTracing,
   warnAboutDeprecatedLifecycles,
 } from 'shared/ReactFeatureFlags';
 import ReactStrictModeWarnings from './ReactStrictModeWarnings.old';
@@ -28,7 +27,7 @@ import invariant from 'shared/invariant';
 import {REACT_CONTEXT_TYPE, REACT_PROVIDER_TYPE} from 'shared/ReactSymbols';
 
 import {resolveDefaultProps} from './ReactFiberLazyComponent.old';
-import {DebugTracingMode, StrictMode} from './ReactTypeOfMode';
+import {StrictMode} from './ReactTypeOfMode';
 
 import {
   enqueueUpdate,
@@ -56,7 +55,6 @@ import {
   scheduleUpdateOnFiber,
 } from './ReactFiberWorkLoop.old';
 import {requestCurrentSuspenseConfig} from './ReactFiberSuspenseConfig';
-import {logForceUpdateScheduled, logStateUpdateScheduled} from './DebugTracing';
 
 import {disableLogs, reenableLogs} from 'shared/ConsolePatchingDev';
 
@@ -205,15 +203,6 @@ const classComponentUpdater = {
 
     enqueueUpdate(fiber, update);
     scheduleUpdateOnFiber(fiber, lane, eventTime);
-
-    if (__DEV__) {
-      if (enableDebugTracing) {
-        if (fiber.mode & DebugTracingMode) {
-          const name = getComponentName(fiber.type) || 'Unknown';
-          logStateUpdateScheduled(name, lane, payload);
-        }
-      }
-    }
   },
   enqueueReplaceState(inst, payload, callback) {
     const fiber = getInstance(inst);
@@ -234,15 +223,6 @@ const classComponentUpdater = {
 
     enqueueUpdate(fiber, update);
     scheduleUpdateOnFiber(fiber, lane, eventTime);
-
-    if (__DEV__) {
-      if (enableDebugTracing) {
-        if (fiber.mode & DebugTracingMode) {
-          const name = getComponentName(fiber.type) || 'Unknown';
-          logStateUpdateScheduled(name, lane, payload);
-        }
-      }
-    }
   },
   enqueueForceUpdate(inst, callback) {
     const fiber = getInstance(inst);
@@ -262,15 +242,6 @@ const classComponentUpdater = {
 
     enqueueUpdate(fiber, update);
     scheduleUpdateOnFiber(fiber, lane, eventTime);
-
-    if (__DEV__) {
-      if (enableDebugTracing) {
-        if (fiber.mode & DebugTracingMode) {
-          const name = getComponentName(fiber.type) || 'Unknown';
-          logForceUpdateScheduled(name, lane);
-        }
-      }
-    }
   },
 };
 
diff --git a/packages/react-reconciler/src/ReactFiberHooks.old.js b/packages/react-reconciler/src/ReactFiberHooks.old.js
index 44522a725966d..771d91f62b78a 100644
--- a/packages/react-reconciler/src/ReactFiberHooks.old.js
+++ b/packages/react-reconciler/src/ReactFiberHooks.old.js
@@ -24,12 +24,9 @@ import type {FiberRoot} from './ReactInternalTypes';
 import type {OpaqueIDType} from './ReactFiberHostConfig';
 
 import ReactSharedInternals from 'shared/ReactSharedInternals';
-import {
-  enableDebugTracing,
-  enableNewReconciler,
-} from 'shared/ReactFeatureFlags';
+import {enableNewReconciler} from 'shared/ReactFeatureFlags';
 
-import {NoMode, BlockingMode, DebugTracingMode} from './ReactTypeOfMode';
+import {NoMode, BlockingMode} from './ReactTypeOfMode';
 import {
   NoLane,
   NoLanes,
@@ -86,7 +83,6 @@ import {
   warnAboutMultipleRenderersDEV,
 } from './ReactMutableSource.old';
 import {getIsRendering} from './ReactCurrentFiber';
-import {logStateUpdateScheduled} from './DebugTracing';
 
 const {ReactCurrentDispatcher, ReactCurrentBatchConfig} = ReactSharedInternals;
 
@@ -1741,15 +1737,6 @@ function dispatchAction<S, A>(
     }
     scheduleUpdateOnFiber(fiber, lane, eventTime);
   }
-
-  if (__DEV__) {
-    if (enableDebugTracing) {
-      if (fiber.mode & DebugTracingMode) {
-        const name = getComponentName(fiber.type) || 'Unknown';
-        logStateUpdateScheduled(name, lane, action);
-      }
-    }
-  }
 }
 
 export const ContextOnlyDispatcher: Dispatcher = {
diff --git a/packages/react-reconciler/src/ReactFiberThrow.old.js b/packages/react-reconciler/src/ReactFiberThrow.old.js
index 2d273b0b72c97..ebe7e61c1afe0 100644
--- a/packages/react-reconciler/src/ReactFiberThrow.old.js
+++ b/packages/react-reconciler/src/ReactFiberThrow.old.js
@@ -30,8 +30,7 @@ import {
   LifecycleEffectMask,
 } from './ReactSideEffectTags';
 import {shouldCaptureSuspense} from './ReactFiberSuspenseComponent.old';
-import {NoMode, BlockingMode, DebugTracingMode} from './ReactTypeOfMode';
-import {enableDebugTracing} from 'shared/ReactFeatureFlags';
+import {NoMode, BlockingMode} from './ReactTypeOfMode';
 import {createCapturedValue} from './ReactCapturedValue';
 import {
   enqueueCapturedUpdate,
@@ -54,7 +53,6 @@ import {
   pingSuspendedRoot,
 } from './ReactFiberWorkLoop.old';
 import {logCapturedError} from './ReactFiberErrorLogger';
-import {logComponentSuspended} from './DebugTracing';
 
 import {
   SyncLane,
@@ -191,15 +189,6 @@ function throwException(
     // This is a wakeable.
     const wakeable: Wakeable = (value: any);
 
-    if (__DEV__) {
-      if (enableDebugTracing) {
-        if (sourceFiber.mode & DebugTracingMode) {
-          const name = getComponentName(sourceFiber.type) || 'Unknown';
-          logComponentSuspended(name, wakeable);
-        }
-      }
-    }
-
     if ((sourceFiber.mode & BlockingMode) === NoMode) {
       // Reset the memoizedState to what it was before we attempted
       // to render it.
diff --git a/packages/react-reconciler/src/ReactFiberWorkLoop.old.js b/packages/react-reconciler/src/ReactFiberWorkLoop.old.js
index 0ccca00ae8c3e..a1a12b66ce219 100644
--- a/packages/react-reconciler/src/ReactFiberWorkLoop.old.js
+++ b/packages/react-reconciler/src/ReactFiberWorkLoop.old.js
@@ -26,7 +26,6 @@ import {
   enableSchedulerTracing,
   warnAboutUnmockedScheduler,
   deferRenderPhaseUpdateToNextBatch,
-  enableDebugTracing,
 } from 'shared/ReactFeatureFlags';
 import ReactSharedInternals from 'shared/ReactSharedInternals';
 import invariant from 'shared/invariant';
@@ -46,16 +45,6 @@ import {
   flushSyncCallbackQueue,
   scheduleSyncCallback,
 } from './SchedulerWithReactIntegration.old';
-import {
-  logCommitStarted,
-  logCommitStopped,
-  logLayoutEffectsStarted,
-  logLayoutEffectsStopped,
-  logPassiveEffectsStarted,
-  logPassiveEffectsStopped,
-  logRenderStarted,
-  logRenderStopped,
-} from './DebugTracing';
 
 // The scheduler is imported here *only* to detect whether it's been mocked
 import * as Scheduler from 'scheduler';
@@ -1455,12 +1444,6 @@ function renderRootSync(root: FiberRoot, lanes: Lanes) {
 
   const prevInteractions = pushInteractions(root);
 
-  if (__DEV__) {
-    if (enableDebugTracing) {
-      logRenderStarted(lanes);
-    }
-  }
-
   do {
     try {
       workLoopSync();
@@ -1486,12 +1469,6 @@ function renderRootSync(root: FiberRoot, lanes: Lanes) {
     );
   }
 
-  if (__DEV__) {
-    if (enableDebugTracing) {
-      logRenderStopped();
-    }
-  }
-
   // Set this to null to indicate there's no in-progress render.
   workInProgressRoot = null;
   workInProgressRootRenderLanes = NoLanes;
@@ -1522,12 +1499,6 @@ function renderRootConcurrent(root: FiberRoot, lanes: Lanes) {
 
   const prevInteractions = pushInteractions(root);
 
-  if (__DEV__) {
-    if (enableDebugTracing) {
-      logRenderStarted(lanes);
-    }
-  }
-
   do {
     try {
       workLoopConcurrent();
@@ -1544,12 +1515,6 @@ function renderRootConcurrent(root: FiberRoot, lanes: Lanes) {
   popDispatcher(prevDispatcher);
   executionContext = prevExecutionContext;
 
-  if (__DEV__) {
-    if (enableDebugTracing) {
-      logRenderStopped();
-    }
-  }
-
   // Check if the tree has completed.
   if (workInProgress !== null) {
     // Still work remaining.
@@ -1820,15 +1785,6 @@ function commitRoot(root) {
 }
 
 function commitRootImpl(root, renderPriorityLevel) {
-  const finishedWork = root.finishedWork;
-  const lanes = root.finishedLanes;
-
-  if (__DEV__) {
-    if (enableDebugTracing) {
-      logCommitStarted(lanes);
-    }
-  }
-
   do {
     // `flushPassiveEffects` will call `flushSyncUpdateQueue` at the end, which
     // means `flushPassiveEffects` will sometimes result in additional
@@ -1845,13 +1801,9 @@ function commitRootImpl(root, renderPriorityLevel) {
     'Should not already be working.',
   );
 
+  const finishedWork = root.finishedWork;
+  const lanes = root.finishedLanes;
   if (finishedWork === null) {
-    if (__DEV__) {
-      if (enableDebugTracing) {
-        logCommitStopped();
-      }
-    }
-
     return null;
   }
   root.finishedWork = null;
@@ -2136,12 +2088,6 @@ function commitRootImpl(root, renderPriorityLevel) {
   }
 
   if ((executionContext & LegacyUnbatchedContext) !== NoContext) {
-    if (__DEV__) {
-      if (enableDebugTracing) {
-        logCommitStopped();
-      }
-    }
-
     // This is a legacy edge case. We just committed the initial mount of
     // a ReactDOM.render-ed root inside of batchedUpdates. The commit fired
     // synchronously, but layout updates should be deferred until the end
@@ -2152,12 +2098,6 @@ function commitRootImpl(root, renderPriorityLevel) {
   // If layout work was scheduled, flush it now.
   flushSyncCallbackQueue();
 
-  if (__DEV__) {
-    if (enableDebugTracing) {
-      logCommitStopped();
-    }
-  }
-
   return null;
 }
 
@@ -2282,12 +2222,6 @@ function commitMutationEffects(root: FiberRoot, renderPriorityLevel) {
 }
 
 function commitLayoutEffects(root: FiberRoot, committedLanes: Lanes) {
-  if (__DEV__) {
-    if (enableDebugTracing) {
-      logLayoutEffectsStarted(committedLanes);
-    }
-  }
-
   // TODO: Should probably move the bulk of this function to commitWork.
   while (nextEffect !== null) {
     setCurrentDebugFiberInDEV(nextEffect);
@@ -2306,12 +2240,6 @@ function commitLayoutEffects(root: FiberRoot, committedLanes: Lanes) {
     resetCurrentDebugFiberInDEV();
     nextEffect = nextEffect.nextEffect;
   }
-
-  if (__DEV__) {
-    if (enableDebugTracing) {
-      logLayoutEffectsStopped();
-    }
-  }
 }
 
 export function flushPassiveEffects() {
@@ -2393,12 +2321,6 @@ function flushPassiveEffectsImpl() {
     'Cannot flush passive effects while already rendering.',
   );
 
-  if (__DEV__) {
-    if (enableDebugTracing) {
-      logPassiveEffectsStarted(lanes);
-    }
-  }
-
   if (__DEV__) {
     isFlushingPassiveEffects = true;
   }
@@ -2555,12 +2477,6 @@ function flushPassiveEffectsImpl() {
     isFlushingPassiveEffects = false;
   }
 
-  if (__DEV__) {
-    if (enableDebugTracing) {
-      logPassiveEffectsStopped();
-    }
-  }
-
   executionContext = prevExecutionContext;
 
   flushSyncCallbackQueue();
diff --git a/packages/react-reconciler/src/__tests__/DebugTracing-test.internal.js b/packages/react-reconciler/src/__tests__/DebugTracing-test.internal.js
index 14960c36811c0..99d6c4237f26e 100644
--- a/packages/react-reconciler/src/__tests__/DebugTracing-test.internal.js
+++ b/packages/react-reconciler/src/__tests__/DebugTracing-test.internal.js
@@ -85,9 +85,9 @@ describe('DebugTracing', () => {
     );
 
     expect(logs).toEqual([
-      'group: ⚛️ render (0b0000000000000000000000000000001)',
+      'group: ⚛️ render (priority: immediate)',
       'log: ⚛️ Example suspended',
-      'groupEnd: ⚛️ render (0b0000000000000000000000000000001)',
+      'groupEnd: ⚛️ render (priority: immediate)',
     ]);
 
     logs.splice(0);
@@ -119,9 +119,9 @@ describe('DebugTracing', () => {
     expect(Scheduler).toFlushUntilNextPaint([]);
 
     expect(logs).toEqual([
-      'group: ⚛️ render (0b0000000000000000000001000000000)',
+      'group: ⚛️ render (priority: normal)',
       'log: ⚛️ Example suspended',
-      'groupEnd: ⚛️ render (0b0000000000000000000001000000000)',
+      'groupEnd: ⚛️ render (priority: normal)',
     ]);
 
     logs.splice(0);
@@ -156,11 +156,11 @@ describe('DebugTracing', () => {
     expect(Scheduler).toFlushUntilNextPaint([]);
 
     expect(logs).toEqual([
-      'group: ⚛️ commit (0b0000000000000000000001000000000)',
-      'group: ⚛️ layout effects (0b0000000000000000000001000000000)',
-      'log: ⚛️ Example updated state (0b0000000000000000000000000000001)',
-      'groupEnd: ⚛️ layout effects (0b0000000000000000000001000000000)',
-      'groupEnd: ⚛️ commit (0b0000000000000000000001000000000)',
+      'group: ⚛️ commit (priority: normal)',
+      'group: ⚛️ layout effects (priority: immediate)',
+      'log: ⚛️ Example updated state (priority: immediate)',
+      'groupEnd: ⚛️ layout effects (priority: immediate)',
+      'groupEnd: ⚛️ commit (priority: normal)',
     ]);
   });
 
@@ -192,10 +192,10 @@ describe('DebugTracing', () => {
     }).toErrorDev('Cannot update during an existing state transition');
 
     expect(logs).toEqual([
-      'group: ⚛️ render (0b0000000000000000000001000000000)',
-      'log: ⚛️ Example updated state (0b0000000000000000000010000000000)',
-      'log: ⚛️ Example updated state (0b0000000000000000000010000000000)',
-      'groupEnd: ⚛️ render (0b0000000000000000000001000000000)',
+      'group: ⚛️ render (priority: normal)',
+      'log: ⚛️ Example updated state (priority: normal)',
+      'log: ⚛️ Example updated state (priority: normal)',
+      'groupEnd: ⚛️ render (priority: normal)',
     ]);
   });
 
@@ -223,11 +223,11 @@ describe('DebugTracing', () => {
     expect(Scheduler).toFlushUntilNextPaint([]);
 
     expect(logs).toEqual([
-      'group: ⚛️ commit (0b0000000000000000000001000000000)',
-      'group: ⚛️ layout effects (0b0000000000000000000001000000000)',
-      'log: ⚛️ Example updated state (0b0000000000000000000000000000001)',
-      'groupEnd: ⚛️ layout effects (0b0000000000000000000001000000000)',
-      'groupEnd: ⚛️ commit (0b0000000000000000000001000000000)',
+      'group: ⚛️ commit (priority: normal)',
+      'group: ⚛️ layout effects (priority: immediate)',
+      'log: ⚛️ Example updated state (priority: immediate)',
+      'groupEnd: ⚛️ layout effects (priority: immediate)',
+      'groupEnd: ⚛️ commit (priority: normal)',
     ]);
   });
 
@@ -250,9 +250,9 @@ describe('DebugTracing', () => {
       );
     });
     expect(logs).toEqual([
-      'group: ⚛️ passive effects (0b0000000000000000000001000000000)',
-      'log: ⚛️ Example updated state (0b0000000000000000000010000000000)',
-      'groupEnd: ⚛️ passive effects (0b0000000000000000000001000000000)',
+      'group: ⚛️ passive effects (priority: normal)',
+      'log: ⚛️ Example updated state (priority: normal)',
+      'groupEnd: ⚛️ passive effects (priority: normal)',
     ]);
   });
 
@@ -275,10 +275,10 @@ describe('DebugTracing', () => {
       );
     });
     expect(logs).toEqual([
-      'group: ⚛️ render (0b0000000000000000000001000000000)',
-      'log: ⚛️ Example updated state (0b0000000000000000000010000000000)',
-      'log: ⚛️ Example updated state (0b0000000000000000000010000000000)', // debugRenderPhaseSideEffectsForStrictMode
-      'groupEnd: ⚛️ render (0b0000000000000000000001000000000)',
+      'group: ⚛️ render (priority: normal)',
+      'log: ⚛️ Example updated state (priority: normal)',
+      'log: ⚛️ Example updated state (priority: normal)', // debugRenderPhaseSideEffectsForStrictMode
+      'groupEnd: ⚛️ render (priority: normal)',
     ]);
   });
 
@@ -303,9 +303,9 @@ describe('DebugTracing', () => {
     expect(Scheduler).toFlushUntilNextPaint([]);
 
     expect(logs).toEqual([
-      'group: ⚛️ render (0b0000000000000000000001000000000)',
+      'group: ⚛️ render (priority: normal)',
       'log: Hello from user code',
-      'groupEnd: ⚛️ render (0b0000000000000000000001000000000)',
+      'groupEnd: ⚛️ render (priority: normal)',
     ]);
   });
 
diff --git a/packages/shared/forks/ReactFeatureFlags.www.js b/packages/shared/forks/ReactFeatureFlags.www.js
index 657c2508443b5..ad64100da2fcc 100644
--- a/packages/shared/forks/ReactFeatureFlags.www.js
+++ b/packages/shared/forks/ReactFeatureFlags.www.js
@@ -78,8 +78,8 @@ export const enableModernEventSystem = true;
 // to the correct value.
 export const enableNewReconciler = __VARIANT__;
 
-// TODO: This does not currently exist in the new reconciler fork.
-export const enableDebugTracing = !__VARIANT__;
+// TODO: This does not currently exist in the Lanes implementation.
+export const enableDebugTracing = false;
 
 // Flow magic to verify the exports of this file match the original version.
 // eslint-disable-next-line no-unused-vars