Preview: Custom sizing and runtime resize for Forge Modals

What’s changing

We’ve released a preview of new modal sizing capabilities, giving you more control over how your app's modals appear and behave.

• Custom pixel sizes: You can now pass specific width and height values in pixels to define the exact dimensions of your modal.
• Runtime resizing: You can enable dynamic resizing by adding viewportSize: resizable to modal extension points in your manifest, or by passing resizable to the size prop in UI Kit and @forge/bridge modal.

What you need to do As this feature is currently in preview, we encourage you to test these new configurations in your development environments:

1. For extension points: Update your manifest.yml to include the viewportSize: resizable attribute or viewportSize: { width, height } for relevant modules.
2. For UI Kit or Bridge: Update your modal calls to use supported css string values for width and height, or set the size prop to resizable.

For detailed implementation details, refer to the updated documentation:

• https://developer.atlassian.com/platform/forge/apis-reference/ui-api-bridge/modal/#modal
• https://developer.atlassian.com/platform/forge/ui-kit/components/modal/
• https://developer.atlassian.com/platform/forge/manifest-reference/modules/