# Replace blocks directly in the theme editor and newsletter DKIM support

> Swap theme blocks in a single step in the theme editor and use custom DKIM settings for store newsletters.

1 min read

15 Apr 2026

This update makes theme editing quicker when swapping content, and brings your domain verification settings over to store newsletters.

## Design and theme

When customizing your layout in the theme editor, you can now swap out a switchable block in a single step instead of deleting the old item first and adding a new one.

## Mailings

Your store's DKIM settings are now applied to outgoing newsletters to help maintain consistent domain authentication across all emails.