app/node_modules/ng-zorro-antd/schematics/migration.json

{
  "$schema": "../node_modules/@angular-devkit/schematics/collection-schema.json",
  "schematics": {
    "migration-v19": {
      "version": "19.0.0-0",
      "description": "Updates NG-ZORRO to v19 [https://github.com/NG-ZORRO/ng-zorro-antd/issues/8890]",
      "factory": "./ng-update/index#updateToV19"
    },
    "ng-post-update": {
      "description": "Prints out results after ng-update.",
      "factory": "./ng-update/index#postUpdate",
      "private": true
    }
  }
}