Breaking: #63453 - Changed rendering of FlashMessagesViewHelper

See Issue #63453

Description

The default (renderMode="ul") rendering output of the FlashMessagesViewHelper has been changed.

By default the view helper rendered an unordered list, each list item containing one message. This output has been adjusted and more markup has been added.

Impact

You may see unexpected formatting of flash messages.

Affected Installations

Any template using the FlashMessagesViewHelper unless the attribute renderMode is set to "div". Be aware that the renderMode attribute has been deprecated.

Migration

Add a custom rendering template for the flash messages, like outlined in the example, to obtain the same output as before.

<f:flashMessages as="flashMessages">
        <ul class="myFlashMessages">
                <f:for each="{flashMessages}" as="flashMessage">
                        <li>{flashMessage.message}</li>
                </f:for>
        </ul>
</f:flashMessages>