Topol Plugin Guide

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Changelog - July, 2025 ​

New Features ​

Subscription-Based Feature Access ​

We’ve implemented an important update to the Topol Plugin that enforces feature availability based on your current subscription plan. Until now, some users were able to access advanced features not included in their plan — this was unintentional and has now been resolved.

Why It Matters ​

Although not exactly a new feature in the traditional sense, this change impacts all other features, so it is definitely necessary to mention here.

With this update, all features are now strictly limited to the plan you’re subscribed to. For example, if you’re using the Plugin for Startup plan, features exclusive to Plugin Expansion or Plugin for Business plans will no longer be accessible unless you upgrade your subscription to the appropriate plan that includes them.

If you attempt to load a feature you don’t have access to, it won’t be initialized and you’ll see a warning in the browser console.

This update ensures consistency with our documentation and pricing structure. For a detailed overview of the features included in each plan, please visit: https://topol.io/pricing.

To continue using advanced functionality, please upgrade to a plan that includes the features you need.

New Guide: Topol Plugin Integration with Next.js ​

We’ve published a comprehensive, step-by-step tutorial on how to integrate the Topol Plugin into any Next.js application using our official React wrapper. This guide covers API token setup, secure configuration, creating client-only components, and embedding the editor into your app.

It’s ideal for developers aiming to create a seamless in-app email editing experience with React and Next.js.

The tutorial is now available in the Tutorials section, and you can also access it by clicking here.

Improvements ​

More Support for VLM Tags in HTML Blocks ​

We have expanded the list of allowed HTML tags in our HTML Blocks. You can now include <v:*> tags, and the HTML editor will no longer flag these tags as invalid.

These <v:*> tags, known as VML (Vector Markup Language), are especially helpful for achieving advanced styling and layout options in Outlook, such as rounded buttons or background images that appear consistently across different versions. For instance, you can use <v:rect> and <v:fill> to create a background image with a fallback color in Outlook-specific environments.

Bugfixes ​

  • Fixed a major issue with the Video Block that often displayed colored stripes instead of YouTube video thumbnails. If some YouTube video thumbnails still do not display correctly in your templates, please re-enter the video URL in the Video Block Options panel.
  • The button label for the Undo action, visible in the maximized HTML code editor of the HTML Block, now correctly shows "Back".
  • The code editor no longer removes lines when you quickly press the "Fix errors" button.