Migrating from deprecated APIs

Learn how to migrate away from recently deprecated APIs before they become breaking changes.

Why you should migrate

Features become deprecated over time as maintainers make improvements to the APIs. Migrating to these improved APIs results in a better developer experience, so it's in your best interest to stay up to date. Deprecated APIs often become breaking changes in subsequent major versions, so the sooner you migrate, the smoother the next major update will be.

Migrating

Material UI provides the deprecations/all codemod to help you stay up to date with minimal effort.

npx @mui/codemod@latest deprecations/all <path>

This command runs all the current deprecations codemods, automatically migrating to the updated API. You can run this codemod as often as necessary to keep up with the latest changes.

Package-wide deprecated APIs

Inner element overrides

The slots and slotProps APIs are in the process of being standardized. The analogous APIs—components, componentsProps, <SlotName>Component, and <SlotName>Props—are going to be deprecated and eventually removed. This improves the developer experience through consistency, predictability, and reduced cognitive load.

Composed CSS classes

The composed CSS classes are going to be deprecated and eventually removed in favor of atomic class alternatives. For example, the .MuiAccordionSummary-contentGutters class was deprecated in favor of the .MuiAccordionSummary-gutters and .MuiAccordionSummary-content classes. This improves the developer experience by reducing bloat and cognitive load.

Accordion

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@latest deprecations/accordion-props <path>

TransitionComponent

The Accordion's TransitionComponent was deprecated in favor of slots.transition:

 <Accordion
-  TransitionComponent={CustomTransition}
+  slots={{ transition: CustomTransition }}
 />

TransitionProps

The Accordion's TransitionProps was deprecated in favor of slotProps.transition:

 <Accordion
-  TransitionProps={{ unmountOnExit: true }}
+  slotProps={{ transition: { unmountOnExit: true } }}
 />

AccordionSummary

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@latest deprecations/accordion-summary-classes <path>

.MuiAccordionSummary-contentGutters

The AccordionSummary's .MuiAccordionSummary-contentGutters class was deprecated in favor of the .MuiAccordionSummary-gutters and .MuiAccordionSummary-content classes. Bear in mind that the .MuiAccordionSummary-gutters class is applied to the component's root, whereas the .MuiAccordionSummary-contentGutters and .MuiAccordionSummary-content classes are applied to the content element.

-.MuiAccordionSummary-root .MuiAccordionSummary-contentGutters
+.MuiAccordionSummary-root.MuiAccordionSummary-gutters .MuiAccordionSummary-content
 />

 import { accordionSummaryClasses } from '@mui/material/AccordionSummary';

 MuiAccordionSummary: {
   styleOverrides: {
     root: {
-      [`& .${accordionSummaryClasses.contentGutters}`]: {
+      [`&.${accordionSummaryClasses.gutters} .${accordionSummaryClasses.content}`]: {
         color: 'red',
        },
     },
   },
 },

Alert

Use the alert-props and alert-classes codemods below to migrate the code as described in the following sections:

npx @mui/codemod@latest deprecations/alert-props <path>
npx @mui/codemod@latest deprecations/alert-classes <path>

components

The Alert's components was deprecated in favor of slots:

 <Alert
-  components={{ CloseButton: CustomButton }}
+  slots={{ closeButton: CustomButton }}
 />

componentsProps

The Alert's componentsProps was deprecated in favor of slotProps:

 <Alert
-  componentsProps={{ closeButton: { testid: 'test-id' } }}
+  slotProps={{ closeButton: { testid: 'test-id' } }}
 />

Composed CSS classes

The CSS classes that composed the severity (or variant) and color prop values were removed.

Here's how to migrate:

-.MuiAlert-standardSuccess
+.MuiAlert-standard.MuiAlert-colorSuccess
-.MuiAlert-standardInfo
+.MuiAlert-standard.MuiAlert-colorInfo
-.MuiAlert-standardWarning
+.MuiAlert-standard.MuiAlert-colorWarning
-.MuiAlert-standardError
+.MuiAlert-standard.MuiAlert-colorError
-.MuiAlert-outlinedSuccess
+.MuiAlert-outlined.MuiAlert-colorSuccess
-.MuiAlert-outlinedInfo
+.MuiAlert-outlined.MuiAlert-colorInfo
-.MuiAlert-outlinedWarning
+.MuiAlert-outlined.MuiAlert-colorWarning
-.MuiAlert-outlinedError
+.MuiAlert-outlined.MuiAlert-colorError
-.MuiAlert-filledSuccess
+.MuiAlert-filled.MuiAlert-colorSuccess
-.MuiAlert-filledInfo
+.MuiAlert-filled.MuiAlert-colorInfo
-.MuiAlert-filledWarning
+.MuiAlert-filled.MuiAlert-colorWarning
-.MuiAlert-filledError
+.MuiAlert-filled.MuiAlert-colorError

 import { alertClasses } from '@mui/material/Alert';

 MuiAlert: {
   styleOverrides: {
     root: {
-      [`&.${alertClasses.standardSuccess}`]: {
+      [`&.${alertClasses.standard}.${alertClasses.colorSuccess}`]: {
         color: 'red',
        },
-      [`&.${alertClasses.standardInfo}`]: {
+      [`&.${alertClasses.standard}.${alertClasses.colorInfo}`]: {
         color: 'red',
        },
-      [`&.${alertClasses.standardWarning}`]: {
+      [`&.${alertClasses.standard}.${alertClasses.colorWarning}`]: {
         color: 'red',
        },
-      [`&.${alertClasses.standardError}`]: {
+      [`&.${alertClasses.standard}.${alertClasses.colorError}`]: {
         color: 'red',
        },
-      [`&.${alertClasses.outlinedSuccess}`]: {
+      [`&.${alertClasses.outlined}.${alertClasses.colorSuccess}`]: {
         color: 'red',
        },
-      [`&.${alertClasses.outlinedInfo}`]: {
+      [`&.${alertClasses.outlined}.${alertClasses.colorInfo}`]: {
         color: 'red',
        },
-      [`&.${alertClasses.outlinedWarning}`]: {
+      [`&.${alertClasses.outlined}.${alertClasses.colorWarning}`]: {
         color: 'red',
        },
-      [`&.${alertClasses.outlinedError}`]: {
+      [`&.${alertClasses.outlined}.${alertClasses.colorError}`]: {
         color: 'red',
        },
-      [`&.${alertClasses.filledSuccess}`]: {
+      [`&.${alertClasses.filled}.${alertClasses.colorSuccess}`]: {
         color: 'red',
        },
-      [`&.${alertClasses.filledInfo}`]: {
+      [`&.${alertClasses.filled}.${alertClasses.colorInfo}`]: {
         color: 'red',
        },
-      [`&.${alertClasses.filledWarning}`]: {
+      [`&.${alertClasses.filled}.${alertClasses.colorWarning}`]: {
         color: 'red',
        },
-      [`&.${alertClasses.filledError}`]: {
+      [`&.${alertClasses.filled}.${alertClasses.colorError}`]: {
         color: 'red',
        },
     },
   },
 },

Avatar

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@latest deprecations/avatar-props <path>

imgProps

The Avatar's imgProps was deprecated in favor of slotProps.img:

 <Avatar
-  imgProps={{
-    onError: () => {},
-    onLoad: () => {},
+  slotProps={{
+    img: {
+      onError: () => {},
+      onLoad: () => {},
+    }
   }}
 />;

Backdrop

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@next deprecations/backdrop-props <path>

TransitionComponent

The Backdrop's TransitionComponent prop was deprecated in favor of slots.transition:

 <Slider
-  TransitionComponent={CustomTransition}
+  slots={{ transition: CustomTransition }}

Badge

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@next deprecations/badge-props <path>

components

The Badge's components was deprecated in favor of slots:

 <Badge
-  components={{ root: CustomRoot }}
+  slots={{ root: CustomRoot }}
 />

componentsProps

The Badge's componentsProps was deprecated in favor of slotProps:

 <Badge
-  componentsProps={{ root: { testid: 'test-id' } }}
+  slotProps={{ root: { testid: 'test-id' } }}
 />

Button

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@latest deprecations/button-classes <path>

Composed CSS classes

The CSS classes composing the variant and color prop values, as well as those composing the variant and size prop values, along with the icon size CSS classes, have been removed.

Here's how to migrate:

-.MuiButton-textInherit
+.MuiButton-text.MuiButton-colorInherit
-.MuiButton-textPrimary
+.MuiButton-text.MuiButton-colorPrimary
-.MuiButton-textSecondary
+.MuiButton-text.MuiButton-colorSecondary
-.MuiButton-textSuccess
+.MuiButton-text.MuiButton-colorSuccess
-.MuiButton-textError
+.MuiButton-text.MuiButton-colorError
-.MuiButton-textInfo
+.MuiButton-text.MuiButton-colorInfo
-.MuiButton-textWarning
+.MuiButton-text.MuiButton-colorWarning
-.MuiButton-outlinedInherit
+.MuiButton-outlined.MuiButton-colorInherit
-.MuiButton-outlinedPrimary
+.MuiButton-outlined.MuiButton-colorPrimary
-.MuiButton-outlinedSecondary
+.MuiButton-outlined.MuiButton-colorSecondary
-.MuiButton-outlinedSuccess
+.MuiButton-outlined.MuiButton-colorSuccess
-.MuiButton-outlinedError
+.MuiButton-outlined.MuiButton-colorError
-.MuiButton-outlinedInfo
+.MuiButton-outlined.MuiButton-colorInfo
-.MuiButton-outlinedWarning
+.MuiButton-outlined.MuiButton-colorWarning
-.MuiButton-containedInherit
+.MuiButton-contained.MuiButton-colorInherit
-.MuiButton-containedPrimary
+.MuiButton-contained.MuiButton-colorPrimary
-.MuiButton-containedSecondary
+.MuiButton-contained.MuiButton-colorSecondary
-.MuiButton-containedSuccess
+.MuiButton-contained.MuiButton-colorSuccess
-.MuiButton-containedError
+.MuiButton-contained.MuiButton-colorError
-.MuiButton-containedInfo
+.MuiButton-contained.MuiButton-colorInfo
-.MuiButton-containedWarning
+.MuiButton-contained.MuiButton-colorWarning
-.MuiButton-textSizeSmall
+.MuiButton-text.MuiButton-sizeSmall
-.MuiButton-textSizeMedium
+.MuiButton-text.MuiButton-sizeMedium
-.MuiButton-textSizeLarge
+.MuiButton-text.MuiButton-sizeLarge
-.MuiButton-outlinedSizeSmall
+.MuiButton-outlined.MuiButton-sizeSmall
-.MuiButton-outlinedSizeMedium
+.MuiButton-outlined.MuiButton-sizeMedium
-.MuiButton-outlinedSizeLarge
+.MuiButton-outlined.MuiButton-sizeLarge
-.MuiButton-containedSizeSmall
+.MuiButton-contained.MuiButton-sizeSmall
-.MuiButton-containedSizeMedium
+.MuiButton-contained.MuiButton-sizeMedium
-.MuiButton-containedSizeLarge
+.MuiButton-contained.MuiButton-sizeLarge
-.MuiButton-root .MuiButton-iconSizeSmall
+.MuiButton-root.MuiButton-sizeSmall > .MuiButton-icon
-.MuiButton-root .MuiButton-iconSizeMedium
+.MuiButton-root.MuiButton-sizeMedium > .MuiButton-icon
-.MuiButton-root .MuiButton-iconSizeLarge
+.MuiButton-root.MuiButton-sizeLarge > .MuiButton-icon

 import { buttonClasses } from '@mui/material/Button';

 MuiButton: {
   styleOverrides: {
     root: {
-      [`&.${buttonClasses.textInherit}`]: {
+      [`&.${buttonClasses.text}.${buttonClasses.colorInherit}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.textPrimary}`]: {
+      [`&.${buttonClasses.text}.${buttonClasses.colorPrimary}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.textSecondary}`]: {
+      [`&.${buttonClasses.text}.${buttonClasses.colorSecondary}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.textSuccess}`]: {
+      [`&.${buttonClasses.text}.${buttonClasses.colorSuccess}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.textError}`]: {
+      [`&.${buttonClasses.text}.${buttonClasses.colorError}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.textInfo}`]: {
+      [`&.${buttonClasses.text}.${buttonClasses.colorInfo}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.textWarning}`]: {
+      [`&.${buttonClasses.text}.${buttonClasses.colorWarning}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.outlinedInherit}`]: {
+      [`&.${buttonClasses.outlined}.${buttonClasses.colorInherit}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.outlinedPrimary}`]: {
+      [`&.${buttonClasses.outlined}.${buttonClasses.colorPrimary}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.outlinedSecondary}`]: {
+      [`&.${buttonClasses.outlined}.${buttonClasses.colorSecondary}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.outlinedSuccess}`]: {
+      [`&.${buttonClasses.outlined}.${buttonClasses.colorSuccess}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.outlinedError}`]: {
+      [`&.${buttonClasses.outlined}.${buttonClasses.colorError}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.outlinedInfo}`]: {
+      [`&.${buttonClasses.outlined}.${buttonClasses.colorInfo}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.outlinedWarning}`]: {
+      [`&.${buttonClasses.outlined}.${buttonClasses.colorWarning}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.containedInherit}`]: {
+      [`&.${buttonClasses.contained}.${buttonClasses.colorInherit}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.containedPrimary}`]: {
+      [`&.${buttonClasses.contained}.${buttonClasses.colorPrimary}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.containedSecondary}`]: {
+      [`&.${buttonClasses.contained}.${buttonClasses.colorSecondary}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.containedSuccess}`]: {
+      [`&.${buttonClasses.contained}.${buttonClasses.colorSuccess}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.containedError}`]: {
+      [`&.${buttonClasses.contained}.${buttonClasses.colorError}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.containedInfo}`]: {
+      [`&.${buttonClasses.contained}.${buttonClasses.colorInfo}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.containedWarning}`]: {
+      [`&.${buttonClasses.contained}.${buttonClasses.colorWarning}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.containedSizeSmall}`]: {
+      [`&.${buttonClasses.contained}.${buttonClasses.sizeSmall}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.containedSizeMedium}`]: {
+      [`&.${buttonClasses.contained}.${buttonClasses.sizeMedium}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.containedSizeLarge}`]: {
+      [`&.${buttonClasses.contained}.${buttonClasses.sizeLarge}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.textSizeSmall}`]: {
+      [`&.${buttonClasses.text}.${buttonClasses.sizeSmall}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.textSizeMedium}`]: {
+      [`&.${buttonClasses.text}.${buttonClasses.sizeMedium}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.textSizeLarge}`]: {
+      [`&.${buttonClasses.text}.${buttonClasses.sizeLarge}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.outlinedSizeSmall}`]: {
+      [`&.${buttonClasses.outlined}.${buttonClasses.sizeSmall}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.outlinedSizeMedium}`]: {
+      [`&.${buttonClasses.outlined}.${buttonClasses.sizeMedium}`]: {
         color: 'red',
        },
-      [`&.${buttonClasses.outlinedSizeLarge}`]: {
+      [`&.${buttonClasses.outlined}.${buttonClasses.sizeLarge}`]: {
         color: 'red',
        },
-      [`& .${buttonClasses.iconSizeSmall}`]: {
+      [`&.${buttonClasses.sizeSmall} > .${buttonClasses.icon}`]: {
         color: 'red',
        },
-      [`& .${buttonClasses.iconSizeMedium}`]: {
+      [`&.${buttonClasses.sizeMedium} > .${buttonClasses.icon}`]: {
         color: 'red',
        },
-      [`& .${buttonClasses.iconSizeLarge}`]: {
+      [`&.${buttonClasses.sizeLarge} > .${buttonClasses.icon}`]: {
         color: 'red',
        },
     },
   },
 },

ButtonGroup

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@latest deprecations/button-group-classes <path>

Composed CSS classes

The CSS classes that composed the following props were deprecated:

orientation | variant and grouped
color, variant and grouped

Here's how to migrate:

-.MuiButtonGroup-root .MuiButtonGroup-groupedHorizontal
+.MuiButtonGroup-root.MuiButtonGroup-horizontal > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedVertical
+.MuiButtonGroup-root.MuiButtonGroup-vertical > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedText
+.MuiButtonGroup-root.MuiButtonGroup-text > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedTextHorizontal
+.MuiButtonGroup-root.MuiButtonGroup-text.MuiButtonGroup-horizontal > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedTextVertical
+.MuiButtonGroup-root.MuiButtonGroup-text.MuiButtonGroup-vertical > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedTextPrimary
+.MuiButtonGroup-root.MuiButtonGroup-text.MuiButtonGroup-colorPrimary > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedTextSecondary
+.MuiButtonGroup-root.MuiButtonGroup-text.MuiButtonGroup-colorSecondary > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedOutlined
+.MuiButtonGroup-root.MuiButtonGroup-outlined > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedOutlinedHorizontal
+.MuiButtonGroup-root.MuiButtonGroup-outlined.MuiButtonGroup-horizontal > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedOutlinedVertical
+.MuiButtonGroup-root.MuiButtonGroup-outlined.MuiButtonGroup-vertical > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedOutlinedPrimary
+.MuiButtonGroup-root.MuiButtonGroup-outlined.MuiButtonGroup-colorPrimary > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedOutlinedSecondary
+.MuiButtonGroup-root.MuiButtonGroup-outlined.MuiButtonGroup-colorSecondary > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedContained
+.MuiButtonGroup-root.MuiButtonGroup-contained > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedContainedHorizontal
+.MuiButtonGroup-root.MuiButtonGroup-contained.MuiButtonGroup-horizontal > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedContainedVertical
+.MuiButtonGroup-root.MuiButtonGroup-contained.MuiButtonGroup-vertical > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedContainedPrimary
+.MuiButtonGroup-root.MuiButtonGroup-contained.MuiButtonGroup-colorPrimary > .MuiButtonGroup-grouped
-.MuiButtonGroup-root .MuiButtonGroup-groupedContainedSecondary
+.MuiButtonGroup-root.MuiButtonGroup-contained.MuiButtonGroup-colorSecondary > .MuiButtonGroup-grouped


 import { buttonGroupClasses } from '@mui/material/ButtonGroup';

  MuiButtonGroup: {
   styleOverrides: {
     root: {
-      [`& .${buttonGroupClasses.groupedHorizontal}`]: {
+      [`&.${buttonGroupClasses.horizontal} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedVertical}`]: {
+      [`&.${buttonGroupClasses.vertical} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedText}`]: {
+      [`&.${buttonGroupClasses.text} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedTextHorizontal}`]: {
+      [`&.${buttonGroupClasses.text}.${buttonGroupClasses.horizontal} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedTextVertical}`]: {
+      [`&.${buttonGroupClasses.text}.${buttonGroupClasses.vertical} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedTextPrimary}`]: {
+      [`&.${buttonGroupClasses.text}.${buttonGroupClasses.colorPrimary} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedTextSecondary}`]: {
+      [`&.${buttonGroupClasses.text}.${buttonGroupClasses.colorSecondary} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedOutlined}`]: {
+      [`&.${buttonGroupClasses.outlined} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedOutlinedHorizontal}`]: {
+      [`&.${buttonGroupClasses.outlined}.${buttonGroupClasses.horizontal} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedOutlinedVertical}`]: {
+      [`&.${buttonGroupClasses.outlined}.${buttonGroupClasses.vertical} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedOutlinedPrimary}`]: {
+      [`&.${buttonGroupClasses.outlined}.${buttonGroupClasses.colorPrimary} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedOutlinedSecondary}`]: {
+      [`&.${buttonGroupClasses.outlined}.${buttonGroupClasses.colorSecondary} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedContained}`]: {
+      [`&.${buttonGroupClasses.contained} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedContainedHorizontal}`]: {
+      [`&.${buttonGroupClasses.contained}.${buttonGroupClasses.horizontal} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedContainedVertical}`]: {
+      [`&.${buttonGroupClasses.contained}.${buttonGroupClasses.vertical} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedContainedPrimary}`]: {
+      [`&.${buttonGroupClasses.contained}.${buttonGroupClasses.colorPrimary} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${buttonGroupClasses.groupedContainedSecondary}`]: {
+      [`&.${buttonGroupClasses.contained}.${buttonGroupClasses.colorSecondary} > .${buttonGroupClasses.grouped}`]: {
          color: 'red',
        },
   },
  },

Chip

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@latest deprecations/chip-classes <path>

Composed CSS classes

The CSS classes that composed the following props were deprecated:

variant | clickable | deletable and color
avatar and color | size
icon and color | size
deleteIcon and color | size
label and size

Here's how to migrate:

-.MuiChip-clickableColorPrimary
+.MuiChip-clickable.MuiChip-colorPrimary
-.MuiChip-clickableColorSecondary
+.MuiChip-clickable.MuiChip-colorSecondary
-.MuiChip-deletableColorPrimary
+.MuiChip-deletable.MuiChip-colorPrimary
-.MuiChip-deletableColorSecondary
+.MuiChip-deletable.MuiChip-colorSecondary
-.MuiChip-outlinedPrimary
+.MuiChip-outlined.MuiChip-colorPrimary
-.MuiChip-outlinedSecondary
+.MuiChip-outlined.MuiChip-colorSecondary
-.MuiChip-filledPrimary
+.MuiChip-filled.MuiChip-colorPrimary
-.MuiChip-filledSecondary
+.MuiChip-filled.MuiChip-colorSecondary
-.MuiChip-root .MuiChip-avatarSmall
+.MuiChip-root.MuiChip-sizeSmall > .MuiChip-avatar
-.MuiChip-root .MuiChip-avatarMedium
+.MuiChip-root.MuiChip-sizeMedium > .MuiChip-avatar
-.MuiChip-root .MuiChip-avatarColorPrimary
+.MuiChip-root.MuiChip-colorPrimary > .MuiChip-avatar
-.MuiChip-root .MuiChip-avatarColorSecondary
+.MuiChip-root.MuiChip-colorSecondary > .MuiChip-avatar
-.MuiChip-root .MuiChip-iconSmall
+.MuiChip-root.MuiChip-sizeSmall > .MuiChip-icon
-.MuiChip-root .MuiChip-iconMedium
+.MuiChip-root.MuiChip-sizeMedium > .MuiChip-icon
-.MuiChip-root .MuiChip-iconColorPrimary
+.MuiChip-root.MuiChip-colorPrimary > .MuiChip-icon
-.MuiChip-root .MuiChip-iconColorSecondary
+.MuiChip-root.MuiChip-colorSecondary > .MuiChip-icon
-.MuiChip-root .MuiChip-labelSmall
+.MuiChip-root.MuiChip-sizeSmall > .MuiChip-label
-.MuiChip-root .MuiChip-labelMedium
+.MuiChip-root.MuiChip-sizeMedium > .MuiChip-label
-.MuiChip-root .MuiChip-deleteIconSmall
+.MuiChip-root.MuiChip-sizeSmall > .MuiChip-deleteIcon
-.MuiChip-root .MuiChip-deleteIconMedium
+.MuiChip-root.MuiChip-sizeMedium > .MuiChip-deleteIcon
-.MuiChip-root .MuiChip-deleteIconColorPrimary
+.MuiChip-root.MuiChip-colorPrimary > .MuiChip-deleteIcon
-.MuiChip-root .MuiChip-deleteIconColorSecondary
+.MuiChip-root.MuiChip-colorSecondary > .MuiChip-deleteIcon
-.MuiChip-root .MuiChip-deleteIconOutlinedColorPrimary
+.MuiChip-root.MuiChip-outlined.MuiChip-colorPrimary > .MuiChip-deleteIcon
-.MuiChip-root .MuiChip-deleteIconOutlinedColorSecondary
+.MuiChip-root.MuiChip-outlined.MuiChip-colorSecondary > .MuiChip-deleteIcon
-.MuiChip-root .MuiChip-deleteIconFilledColorPrimary
+.MuiChip-root.MuiChip-filled.MuiChip-colorPrimary > .MuiChip-deleteIcon
-.MuiChip-root .MuiChip-deleteIconFilledColorSecondary
+.MuiChip-root.MuiChip-filled.MuiChip-colorSecondary > .MuiChip-deleteIcon


 import { chipClasses } from '@mui/material/Chip';

  MuiChip: {
   styleOverrides: {
     root: {
-      [`&.${chipClasses.clickableColorPrimary}`]: {
+      [`&.${chipClasses.clickable}.${chipClasses.colorPrimary}`]: {
         color: 'red',
        },
-      [`&.${chipClasses.clickableColorSecondary}`]: {
+      [`&.${chipClasses.clickable}.${chipClasses.colorSecondary}`]: {
         color: 'red',
        },
-      [`&.${chipClasses.deletableColorPrimary}`]: {
+      [`&.${chipClasses.deletable}.${chipClasses.colorPrimary}`]: {
         color: 'red',
        },
-      [`&.${chipClasses.deletableColorSecondary}`]: {
+      [`&.${chipClasses.deletable}.${chipClasses.colorSecondary}`]: {
         color: 'red',
        },
-      [`&.${chipClasses.outlinedPrimary}`]: {
+      [`&.${chipClasses.outlined}.${chipClasses.colorPrimary}`]: {
         color: 'red',
        },
-      [`&.${chipClasses.outlinedSecondary}`]: {
+      [`&.${chipClasses.outlined}.${chipClasses.colorSecondary}`]: {
         color: 'red',
        },
-      [`&.${chipClasses.filledPrimary}`]: {
+      [`&.${chipClasses.filled}.${chipClasses.colorPrimary}`]: {
         color: 'red',
        },
-      [`&.${chipClasses.filledSecondary}`]: {
+      [`&.${chipClasses.filled}.${chipClasses.colorSecondary}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.avatarSmall}`]: {
+      [`&.${chipClasses.sizeSmall} > .${chipClasses.avatar}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.avatarMedium}`]: {
+      [`&.${chipClasses.sizeMedium} > .${chipClasses.avatar}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.avatarColorPrimary}`]: {
+      [`&.${chipClasses.colorPrimary} > .${chipClasses.avatar}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.avatarColorSecondary}`]: {
+      [`&.${chipClasses.colorSecondary} > .${chipClasses.avatar}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.iconSmall}`]: {
+      [`&.${chipClasses.sizeSmall} > .${chipClasses.icon}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.iconMedium}`]: {
+      [`&.${chipClasses.sizeMedium} > .${chipClasses.icon}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.iconColorPrimary}`]: {
+      [`&.${chipClasses.colorPrimary} > .${chipClasses.icon}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.iconColorSecondary}`]: {
+      [`&.${chipClasses.colorSecondary} > .${chipClasses.icon}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.labelSmall}`]: {
+      [`&.${chipClasses.sizeSmall} > .${chipClasses.label}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.labelMedium}`]: {
+      [`&.${chipClasses.sizeMedium} > .${chipClasses.label}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.deleteIconSmall}`]: {
+      [`&.${chipClasses.sizeSmall} > .${chipClasses.deleteIcon}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.deleteIconMedium}`]: {
+      [`&.${chipClasses.sizeMedium} > .${chipClasses.deleteIcon}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.deleteIconColorPrimary}`]: {
+      [`&.${chipClasses.colorPrimary} > .${chipClasses.deleteIcon}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.deleteIconColorSecondary}`]: {
+      [`&.${chipClasses.colorSecondary} > .${chipClasses.deleteIcon}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.deleteIconOutlinedColorPrimary}`]: {
+      [`&.${chipClasses.outlined}.${chipClasses.colorPrimary} > .${chipClasses.deleteIcon}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.deleteIconOutlinedColorSecondary}`]: {
+      [`&.${chipClasses.outlined}.${chipClasses.colorSecondary} > .${chipClasses.deleteIcon}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.deleteIconFilledColorPrimary}`]: {
+      [`&.${chipClasses.filled}.${chipClasses.colorPrimary} > .${chipClasses.deleteIcon}`]: {
         color: 'red',
        },
-      [`& .${chipClasses.deleteIconFilledColorSecondary}`]: {
+      [`&.${chipClasses.filled}.${chipClasses.colorSecondary} > .${chipClasses.deleteIcon}`]: {
         color: 'red',
     },
     },
   },
  },

Divider

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@latest deprecations/divider-props <path>

light

The Divider's light prop was deprecated, Use sx={{ opacity : "0.6" }} (or any opacity):

 <Divider
-  light
+  sx={{ opacity : "0.6" }}
 />

PaginationItem

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@latest deprecations/pagination-item-classes <path>

Composed CSS classes

The CSS classes that composed the variant and color prop values were removed.

Here's how to migrate:

-.MuiPaginationItem-textPrimary
+.MuiPaginationItem-text.MuiPaginationItem-colorPrimary
-.MuiPaginationItem-outlinedPrimary
+.MuiPaginationItem-outlined.MuiPaginationItem-colorPrimary
-.MuiPaginationItem-textSecondary
+.MuiPaginationItem-text.MuiPaginationItem-colorSecondary
-.MuiPaginationItem-outlinedSecondary
+.MuiPaginationItem-outlined.MuiPaginationItem-colorSecondary

 import { paginationItemClasses } from '@mui/material/PaginationItem';

 MuiPaginationItem: {
   styleOverrides: {
     root: {
-      [`&.${paginationItemClasses.textPrimary}`]: {
+      [`&.${paginationItemClasses.text}.${paginationItemClasses.colorPrimary}`]: {
         color: 'red',
        },
-      [`&.${paginationItemClasses.outlinedPrimary}`]: {
+      [`&.${paginationItemClasses.outlined}.${paginationItemClasses.colorPrimary}`]: {
         color: 'red',
        },
-      [`&.${paginationItemClasses.textSecondary}`]: {
+      [`&.${paginationItemClasses.text}.${paginationItemClasses.colorSecondary}`]: {
         color: 'red',
        },
-      [`&.${paginationItemClasses.outlinedSecondary}`]: {
+      [`&.${paginationItemClasses.outlined}.${paginationItemClasses.colorSecondary}`]: {
         color: 'red',
        },
     },
   },
 },

Slider

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@latest deprecations/slider-props <path>

components

The Slider's components was deprecated in favor of slots:

 <Slider
-  components={{ Track: CustomTrack }}
+  slots={{ track: CustomTrack }}
 />

componentsProps

The Slider's componentsProps was deprecated in favor of slotProps:

 <Slider
-  componentsProps={{ track: { testid: 'test-id' } }}
+  slotProps={{ track: { testid: 'test-id' } }}
 />

ToggleButtonGroup

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@latest deprecations/toggle-button-group-classes <path>

Composed CSS classes

The CSS classes composing the orientation prop value and grouped CSS class have been removed.

Here's how to migrate:

-.MuiToggleButtonGroup-root .MuiToggleButtonGroup-groupedHorizontal
+.MuiToggleButtonGroup-root.MuiToggleButtonGroup-horizontal > .MuiToggleButtonGroup-grouped
-.MuiToggleButtonGroup-root .MuiToggleButtonGroup-groupedVertical
+.MuiToggleButtonGroup-root.MuiToggleButtonGroup-vertical > .MuiToggleButtonGroup-grouped


 import { toggleButtonGroupClasses } from '@mui/material/ToggleButtonGroup';

  MuiButtonGroup: {
   styleOverrides: {
     root: {
-      [`& .${toggleButtonGroupClasses.groupedHorizontal}`]: {
+      [`&.${toggleButtonGroupClasses.horizontal} > .${toggleButtonGroupClasses.grouped}`]: {
          color: 'red',
        },
-      [`& .${toggleButtonGroupClasses.groupedVertical}`]: {
+      [`&.${toggleButtonGroupClasses.vertical} > .${toggleButtonGroupClasses.grouped}`]: {
          color: 'red',
        },
   },
  },

StepLabel

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@latest deprecations/step-label-props <path>

componentsProps

The StepLabel's componentsProps was deprecated in favor of slotProps:

 <StepLabel
-  componentsProps={{ label: labelProps }}
+  slotProps={{ label: labelProps }}
 />

StepIconComponent

The StepLabel's StepIconComponent was deprecated in favor of slots.stepIcon:

 <StepLabel
-  StepIconComponent={StepIconComponent}
+  slots={{ stepIcon: StepIconComponent }}
 />

StepIconProps

The StepLabel's StepIconProps was deprecated in favor of slotProps.stepIcon:

 <StepLabel
-  StepIconProps={StepIconProps}
+  slotProps={{ stepIcon: StepIconProps }}
 />

StepConnector

Use the codemod below to migrate the code as described in the following sections:

npx @mui/codemod@next deprecations/step-connector-classes <path>

Composed CSS classes

The CSS classes that composed the line CSS class and orientation prop values were removed.

Here's how to migrate:

- .MuiStepConnector-lineHorizontal
+.MuiStepConnector-horizontal > .MuiStepConnector-line
- .MuiStepConnector-lineVertical
+.MuiStepConnector-vertical > .MuiStepConnector-line

 import { stepConnectorClasses } from '@mui/material/StepConnector';

 MuiStepConnector: {
   styleOverrides: {
     root: {
-      [`& .${stepConnectorClasses.lineHorizontal}`]: {
+      [`&.${stepConnectorClasses.horizontal} > .${stepConnectorClasses.line}`]: {
         color: 'red',
        },
-      [`& .${stepConnectorClasses.lineVertical}`]: {
+      [`&.${stepConnectorClasses.vertical} > .${stepConnectorClasses.line}`]: {
         color: 'red',
        },
     },
   },
 },