Polaris v12: run @shopify/polaris-migrator (automated tokens/props), then manual fixes per v12 guide

[mohab-sameh]

The official migrator covers most renames; we’ll fill gaps with targeted codemods after running it. (polaris-react.shopify.com)

Command

npx @shopify/polaris-migrator <migration> <path> --dry
# then remove --dry and commit by chunk

Detect:

• Presence of Polaris; prompt running v12 migrations (tokens like -p-font-size-75 → -p-font-size-300, etc.). (polaris-react.shopify.com)

Edge cases:

• Migrator won’t fix bespoke CSS or app-specific abstractions; schedule follow-up sweep issues (below).

References:

• Polaris Migrator docs (tool & v12 migrations):

  https://polaris-react.shopify.com/tools/polaris-migrator (polaris-react.shopify.com)

• “Migrating from v11 to v12” (workflow, manual steps):

  https://polaris-react.shopify.com/version-guides/migrating-from-v11-to-v12 (polaris-react.shopify.com)