MUI Version Migration v4 → v5 Migration Package Renames Run the v5 Codemod The codemod handles 80% of the mechanical changes automatically. After running the codemod, review the diff carefully — some transformations may need manual adjustment. Import Path Changes createTheme Changes makeStyles → styled / sx This is the most impactful change. JSS ( , ) is replaced by Emotion. Pattern 1: sx prop (simple, inline styles) Pattern 2: styled() (reusable styled components) Pattern 3: tss-react (drop-in makeStyles replacement) For large codebases where a full migration is impractical, provides a near-…