diff --git a/packages/next/src/client/components/react-dev-overlay/server/shared.ts b/packages/next/src/client/components/react-dev-overlay/server/shared.ts
index 6ebfd3d43518f..2c6e4f175fae7 100644
--- a/packages/next/src/client/components/react-dev-overlay/server/shared.ts
+++ b/packages/next/src/client/components/react-dev-overlay/server/shared.ts
@@ -50,7 +50,7 @@ export function findSourcePackage({
 export function getOriginalCodeFrame(
   frame: StackFrame,
   source: string | null
-): string | null {
+): string | null | undefined {
   if (!source || isInternal(frame.file)) {
     return null
   }
diff --git a/packages/next/src/server/node-environment-extensions/error-inspect.tsx b/packages/next/src/server/node-environment-extensions/error-inspect.tsx
deleted file mode 100644
index e086cbd003bd6..0000000000000
--- a/packages/next/src/server/node-environment-extensions/error-inspect.tsx
+++ /dev/null
@@ -1,3 +0,0 @@
-import { patchErrorInspect } from '../patch-error-inspect'
-
-patchErrorInspect()
diff --git a/packages/next/src/server/node-environment.ts b/packages/next/src/server/node-environment.ts
index 4eefc81a16dc7..83d97ac3a1571 100644
--- a/packages/next/src/server/node-environment.ts
+++ b/packages/next/src/server/node-environment.ts
@@ -1,9 +1,6 @@
 // This file should be imported before any others. It sets up the environment
 // for later imports to work properly.
 
-// Import before anything else so that unexpected errors in other extensions are properly formatted.
-import './node-environment-extensions/error-inspect'
-
 import './node-environment-baseline'
 import './node-environment-extensions/random'
 import './node-environment-extensions/date'
diff --git a/packages/next/src/server/patch-error-inspect.ts b/packages/next/src/server/patch-error-inspect.ts
deleted file mode 100644
index 6d85dd186cbb0..0000000000000
--- a/packages/next/src/server/patch-error-inspect.ts
+++ /dev/null
@@ -1,228 +0,0 @@
-import { findSourceMap } from 'module'
-import type * as util from 'util'
-import { SourceMapConsumer as SyncSourceMapConsumer } from 'next/dist/compiled/source-map'
-import type { StackFrame } from 'next/dist/compiled/stacktrace-parser'
-import { parseStack } from '../client/components/react-dev-overlay/server/middleware'
-import { getOriginalCodeFrame } from '../client/components/react-dev-overlay/server/shared'
-
-// TODO: Implement for Edge runtime
-const inspectSymbol = Symbol.for('nodejs.util.inspect.custom')
-
-function frameToString(frame: StackFrame): string {
-  let sourceLocation = frame.lineNumber !== null ? `:${frame.lineNumber}` : ''
-  if (frame.column !== null && sourceLocation !== '') {
-    sourceLocation += `:${frame.column}`
-  }
-  return frame.methodName
-    ? `    at ${frame.methodName} (${frame.file}${sourceLocation})`
-    : `    at ${frame.file}${frame.lineNumber}:${frame.column}`
-}
-
-function computeErrorName(error: Error): string {
-  // TODO: Node.js seems to use a different algorithm
-  // class ReadonlyRequestCookiesError extends Error {}` would read `ReadonlyRequestCookiesError: [...]`
-  // in the stack i.e. seems like under certain conditions it favors the constructor name.
-  return error.name || 'Error'
-}
-
-function prepareUnsourcemappedStackTrace(
-  error: Error,
-  structuredStackTrace: any[]
-): string {
-  const name = computeErrorName(error)
-  const message = error.message || ''
-  let stack = name + ': ' + message
-  for (let i = 0; i < structuredStackTrace.length; i++) {
-    stack += '\n    at ' + structuredStackTrace[i].toString()
-  }
-  return stack
-}
-
-function shouldIgnoreListByDefault(file: string): boolean {
-  return (
-    // TODO: Solve via `ignoreList` instead. Tricky because node internals are not part of the sourcemap.
-    file.startsWith('node:')
-    // C&P from setup-dev-bundler
-    // TODO: Taken from setup-dev-bundler but these seem too broad
-    // file.includes('web/adapter') ||
-    // file.includes('web/globals') ||
-    // file.includes('sandbox/context') ||
-    // TODO: Seems too aggressive?
-    // file.includes('<anonymous>') ||
-    // file.startsWith('eval')
-  )
-}
-
-function getSourcemappedFrameIfPossible(
-  frame: StackFrame,
-  sourcemapConsumers: Map<string, SyncSourceMapConsumer>
-): {
-  stack: StackFrame
-  // DEV only
-  code: string | null
-} | null {
-  if (frame.file === null) {
-    return null
-  }
-
-  let sourcemap = sourcemapConsumers.get(frame.file)
-  if (sourcemap === undefined) {
-    const moduleSourcemap = findSourceMap(frame.file)
-    if (moduleSourcemap === undefined) {
-      return null
-    }
-    sourcemap = new SyncSourceMapConsumer(
-      // @ts-expect-error -- Module.SourceMap['version'] is number but SyncSourceMapConsumer wants a string
-      moduleSourcemap.payload
-    )
-    sourcemapConsumers.set(frame.file, sourcemap)
-  }
-
-  const sourcePosition = sourcemap.originalPositionFor({
-    column: frame.column ?? 0,
-    line: frame.lineNumber ?? 1,
-  })
-
-  if (sourcePosition.source === null) {
-    return null
-  }
-
-  const sourceContent: string | null =
-    sourcemap.sourceContentFor(
-      sourcePosition.source,
-      /* returnNullOnMissing */ true
-    ) ?? null
-
-  const originalFrame: StackFrame = {
-    methodName:
-      sourcePosition.name ||
-      // default is not a valid identifier in JS so webpack uses a custom variable when it's an unnamed default export
-      // Resolve it back to `default` for the method name if the source position didn't have the method.
-      frame.methodName
-        ?.replace('__WEBPACK_DEFAULT_EXPORT__', 'default')
-        ?.replace('__webpack_exports__.', ''),
-    column: sourcePosition.column,
-    file: sourcePosition.source,
-    lineNumber: sourcePosition.line,
-    // TODO: c&p from async createOriginalStackFrame but why not frame.arguments?
-    arguments: [],
-  }
-
-  const codeFrame =
-    process.env.NODE_ENV !== 'production'
-      ? getOriginalCodeFrame(originalFrame, sourceContent)
-      : null
-
-  return {
-    stack: originalFrame,
-    code: codeFrame,
-  }
-}
-
-function parseAndSourceMap(error: Error): string {
-  // We overwrote Error.prepareStackTrace earlier so error.stack is not sourcemapped.
-  let unparsedStack = String(error.stack)
-  // We could just read it from `error.stack`.
-  // This works around cases where a 3rd party `Error.prepareStackTrace` implementation
-  // doesn't implement the name computation correctly.
-  const errorName = computeErrorName(error)
-
-  let idx = unparsedStack.indexOf('react-stack-bottom-frame')
-  if (idx !== -1) {
-    idx = unparsedStack.lastIndexOf('\n', idx)
-  }
-  if (idx !== -1) {
-    // Cut off everything after the bottom frame since it'll be React internals.
-    unparsedStack = unparsedStack.slice(0, idx)
-  }
-
-  const unsourcemappedStack = parseStack(unparsedStack)
-  const sourcemapConsumers = new Map<string, SyncSourceMapConsumer>()
-
-  let sourceMappedStack = ''
-  let sourceFrameDEV: null | string = null
-  for (const frame of unsourcemappedStack) {
-    if (frame.file === null) {
-      sourceMappedStack += '\n' + frameToString(frame)
-    } else if (!shouldIgnoreListByDefault(frame.file)) {
-      const sourcemappedFrame = getSourcemappedFrameIfPossible(
-        frame,
-        sourcemapConsumers
-      )
-
-      if (sourcemappedFrame === null) {
-        sourceMappedStack += '\n' + frameToString(frame)
-      } else {
-        // TODO: Use the first frame that's not ignore-listed
-        if (
-          process.env.NODE_ENV !== 'production' &&
-          sourcemappedFrame.code !== null &&
-          sourceFrameDEV === null
-        ) {
-          sourceFrameDEV = sourcemappedFrame.code
-        }
-        // TODO: Hide if ignore-listed but consider what happens if every frame is ignore listed.
-        sourceMappedStack += '\n' + frameToString(sourcemappedFrame.stack)
-      }
-    }
-  }
-
-  return (
-    errorName +
-    ': ' +
-    error.message +
-    sourceMappedStack +
-    (sourceFrameDEV !== null ? '\n' + sourceFrameDEV : '')
-  )
-}
-
-export function patchErrorInspect() {
-  Error.prepareStackTrace = prepareUnsourcemappedStackTrace
-
-  // @ts-expect-error -- TODO upstream types
-  // eslint-disable-next-line no-extend-native -- We're not extending but overriding.
-  Error.prototype[inspectSymbol] = function (
-    depth: number,
-    inspectOptions: util.InspectOptions,
-    inspect: typeof util.inspect
-  ): string {
-    // Create a new Error object with the source mapping applied and then use native
-    // Node.js formatting on the result.
-    const newError =
-      this.cause !== undefined
-        ? // Setting an undefined `cause` would print `[cause]: undefined`
-          new Error(this.message, { cause: this.cause })
-        : new Error(this.message)
-
-    // TODO: Ensure `class MyError extends Error {}` prints `MyError` as the name
-    newError.stack = parseAndSourceMap(this)
-
-    for (const key in this) {
-      if (!Object.prototype.hasOwnProperty.call(newError, key)) {
-        // @ts-expect-error -- We're copying all enumerable properties.
-        // So they definitely exist on `this` and obviously have no type on `newError` (yet)
-        newError[key] = this[key]
-      }
-    }
-
-    const originalCustomInspect = (newError as any)[inspectSymbol]
-    // Prevent infinite recursion.
-    // { customInspect: false } would result in `error.cause` not using our inspect.
-    Object.defineProperty(newError, inspectSymbol, {
-      value: undefined,
-      enumerable: false,
-      writable: true,
-    })
-    try {
-      return inspect(newError, {
-        ...inspectOptions,
-        depth:
-          (inspectOptions.depth ??
-            // Default in Node.js
-            2) - depth,
-      })
-    } finally {
-      ;(newError as any)[inspectSymbol] = originalCustomInspect
-    }
-  }
-}
diff --git a/test/e2e/app-dir/actions/app-action-size-limit-invalid.test.ts b/test/e2e/app-dir/actions/app-action-size-limit-invalid.test.ts
index f3cfb6c442080..bf0699962bf25 100644
--- a/test/e2e/app-dir/actions/app-action-size-limit-invalid.test.ts
+++ b/test/e2e/app-dir/actions/app-action-size-limit-invalid.test.ts
@@ -1,6 +1,5 @@
 import { nextTestSetup } from 'e2e-utils'
 import { retry } from 'next-test-utils'
-import stripAnsi from 'strip-ansi'
 import { accountForOverhead } from './account-for-overhead'
 
 const CONFIG_ERROR =
@@ -27,7 +26,7 @@ describe('app-dir action size limit invalid config', () => {
 
   beforeAll(() => {
     const onLog = (log: string) => {
-      logs.push(stripAnsi(log.trim()))
+      logs.push(log.trim())
     }
 
     next.on('stdout', onLog)
@@ -116,7 +115,7 @@ describe('app-dir action size limit invalid config', () => {
 
       await retry(() => {
         expect(logs).toContainEqual(
-          expect.stringContaining('Error: Body exceeded 1.5mb limit')
+          expect.stringContaining('[Error]: Body exceeded 1.5mb limit')
         )
         expect(logs).toContainEqual(
           expect.stringContaining(
diff --git a/test/e2e/app-dir/dynamic-io-errors/dynamic-io-errors.prospective-fallback.test.ts b/test/e2e/app-dir/dynamic-io-errors/dynamic-io-errors.prospective-fallback.test.ts
index d9c59ec790450..ab021df70a7fb 100644
--- a/test/e2e/app-dir/dynamic-io-errors/dynamic-io-errors.prospective-fallback.test.ts
+++ b/test/e2e/app-dir/dynamic-io-errors/dynamic-io-errors.prospective-fallback.test.ts
@@ -27,7 +27,6 @@ describe(`Dynamic IO Prospective Fallback`, () => {
         // we expect the build to fail
       }
 
-      // TODO: Assert on component stack
       expect(next.cliOutput).toContain(
         'Route "/blog/[slug]": A component accessed data, headers, params, searchParams, or a short-lived cache without a Suspense boundary nor a "use cache" above it.'
       )
diff --git a/test/e2e/app-dir/dynamic-io-errors/fixtures/prospective-fallback/next.config.js b/test/e2e/app-dir/dynamic-io-errors/fixtures/prospective-fallback/next.config.js
index 195ad29be3c54..bb76fc99dc6b6 100644
--- a/test/e2e/app-dir/dynamic-io-errors/fixtures/prospective-fallback/next.config.js
+++ b/test/e2e/app-dir/dynamic-io-errors/fixtures/prospective-fallback/next.config.js
@@ -1,6 +1,5 @@
 module.exports = {
   experimental: {
     dynamicIO: true,
-    serverSourceMaps: true,
   },
 }
diff --git a/test/e2e/app-dir/server-source-maps/fixtures/default/app/layout.js b/test/e2e/app-dir/server-source-maps/fixtures/default/app/layout.js
deleted file mode 100644
index a3a86a5ca1e12..0000000000000
--- a/test/e2e/app-dir/server-source-maps/fixtures/default/app/layout.js
+++ /dev/null
@@ -1,7 +0,0 @@
-export default function Root({ children }) {
-  return (
-    <html>
-      <body>{children}</body>
-    </html>
-  )
-}
diff --git a/test/e2e/app-dir/server-source-maps/fixtures/default/app/rsc-error-log-cause/page.js b/test/e2e/app-dir/server-source-maps/fixtures/default/app/rsc-error-log-cause/page.js
deleted file mode 100644
index e94ad0efd24a9..0000000000000
--- a/test/e2e/app-dir/server-source-maps/fixtures/default/app/rsc-error-log-cause/page.js
+++ /dev/null
@@ -1,12 +0,0 @@
-export const dynamic = 'force-dynamic'
-
-function logError(cause) {
-  const error = new Error('Boom', { cause })
-  console.error(error)
-}
-
-export default function Page() {
-  const error = new Error('Boom')
-  logError(error)
-  return null
-}
diff --git a/test/e2e/app-dir/server-source-maps/fixtures/default/app/rsc-error-log-custom-name/page.js b/test/e2e/app-dir/server-source-maps/fixtures/default/app/rsc-error-log-custom-name/page.js
deleted file mode 100644
index 97d67f67ea79b..0000000000000
--- a/test/e2e/app-dir/server-source-maps/fixtures/default/app/rsc-error-log-custom-name/page.js
+++ /dev/null
@@ -1,12 +0,0 @@
-export const dynamic = 'force-dynamic'
-
-class UnnamedError extends Error {}
-class NamedError extends Error {
-  name = 'MyError'
-}
-
-export default function Page() {
-  console.error(new UnnamedError('Foo'))
-  console.error(new NamedError('Bar'))
-  return null
-}
diff --git a/test/e2e/app-dir/server-source-maps/fixtures/default/app/rsc-error-log/page.js b/test/e2e/app-dir/server-source-maps/fixtures/default/app/rsc-error-log/page.js
deleted file mode 100644
index 935bfa6630cbd..0000000000000
--- a/test/e2e/app-dir/server-source-maps/fixtures/default/app/rsc-error-log/page.js
+++ /dev/null
@@ -1,11 +0,0 @@
-export const dynamic = 'force-dynamic'
-
-function logError() {
-  const error = new Error('Boom')
-  console.error(error)
-}
-
-export default function Page() {
-  logError()
-  return null
-}
diff --git a/test/e2e/app-dir/server-source-maps/fixtures/default/next.config.js b/test/e2e/app-dir/server-source-maps/fixtures/default/next.config.js
deleted file mode 100644
index 70e8c4e01e19b..0000000000000
--- a/test/e2e/app-dir/server-source-maps/fixtures/default/next.config.js
+++ /dev/null
@@ -1,10 +0,0 @@
-/**
- * @type {import('next').NextConfig}
- */
-const nextConfig = {
-  experimental: {
-    serverSourceMaps: true,
-  },
-}
-
-module.exports = nextConfig
diff --git a/test/e2e/app-dir/server-source-maps/server-source-maps.test.ts b/test/e2e/app-dir/server-source-maps/server-source-maps.test.ts
deleted file mode 100644
index 4174e83860b43..0000000000000
--- a/test/e2e/app-dir/server-source-maps/server-source-maps.test.ts
+++ /dev/null
@@ -1,34 +0,0 @@
-import * as path from 'path'
-import { nextTestSetup } from 'e2e-utils'
-
-describe('app-dir - server source maps', () => {
-  const { skipped, next, isNextDev } = nextTestSetup({
-    files: path.join(__dirname, 'fixtures/default'),
-    // Deploy tests don't have access to runtime logs.
-    // Manually verify that the runtime logs match.
-    skipDeployment: true,
-  })
-
-  if (skipped) return
-
-  it('logged errors have a sourcemapped stack with a codeframe', async () => {
-    // TODO: Write test once we run with `--enable-source-maps` when `experimental.serverSourceMaps` is set
-  })
-
-  it('logged errors have a sourcemapped `cause`', async () => {
-    // TODO: Write test once we run with `--enable-source-maps` when `experimental.serverSourceMaps` is set
-  })
-
-  it('logged errors preserve their name', async () => {
-    await next.render('/rsc-error-log-custom-name')
-
-    expect(next.cliOutput).toContain(
-      // TODO: isNextDev ? 'UnnamedError: Foo' : '[Error]: Foo'
-      isNextDev ? 'Error: Foo' : 'Error: Foo'
-    )
-    expect(next.cliOutput).toContain(
-      // TODO: isNextDev ? 'NamedError [MyError]: Bar' : '[MyError]: Bar'
-      isNextDev ? 'Error [MyError]: Bar' : 'Error [MyError]: Bar'
-    )
-  })
-})