# Breaking Changes

# Migration Notes: Syntax & Template Renames (Copyable Markdown)

:::tip[Syntax changes]
For syntax differences between Twig and Jinja, see:
- [Twig to Jinja](/twig-to-jinja)
- [Jinja Basics](/jinja-basics)
:::

## Templates Renamed
Some template names were **standardized to use underscores** instead of dashes.

| Old (Twig)                  | New (Jinja)                    |
|-----------------------------|--------------------------------|
| `shipping-and-payment.twig` | `shipping_payment.jinja`       |
| `404.twig`                  | `404_not_found.jinja`          |
| `products-questions.twig`   | `questions.jinja`              |


:::warning[Deprecated Templates]
The following templates will not be allowed to be overriden by themes, but instead provided by zid's storefront system:
- (`account-addresses.twig`,`account-profile.twig`,`account-orders.twig`,`account-wishlist.twig`)

:::
## Templates renamed
#### some templates names were standardazed to use underscore instead of dashes 
- `shipping-and-payment.twig` is now [`shipping_payment.jinja`](https://0qyg3ujwfd.apidog.io/shipping-payment-jinja-1370855m0)
- `404.twig` was renamed to [`404_not_found.jinja`](https://0qyg3ujwfd.apidog.io/shipping-payment-jinja-1370855m0)
- `account-addresses.twig` was renamed to [`account_addresses.jinja`](https://0qyg3ujwfd.apidog.io/shipping-payment-jinja-1370855m0)
- `account-profile.twig` was renamed to [`account_profile.jinja`](https://0qyg3ujwfd.apidog.io/shipping-payment-jinja-1370855m0)
- `account-orders.twig` was renamed to [`account_orders.jinja`](https://0qyg3ujwfd.apidog.io/shipping-payment-jinja-1370855m0)
- `account-wishlist.twig` was renamed to [`account_wishlist.jinja`](https://0qyg3ujwfd.apidog.io/shipping-payment-jinja-1370855m0)
- `products-questions.twig` was renamed to [`questions.jinja`](https://0qyg3ujwfd.apidog.io/shipping-payment-jinja-1370855m0)


### Global variables

- `window.zid.store` is deprecated. You can use `window.zid `instead.
- Auth state has been simplified, now you can use `window.isAuthenticated` and `window.isGuest` to check the auth state of a user. 


## Variables

- `product.unavailable` is deprecated. You can use `not product.in_stock` instead.
- using `request.query` is deprecated. Use `session.query_params`.