Expected UI issues with Wagtail 3.0 release

[thibaudcolas]

The Wagtail 3.0 first release candidate is out. There are large UI changes in this release, for which we have reviewed expected breakage in third-party UI customisations.

This is beyond what we do with our normal breaking changes policy, since the majority of those changes are on parts of Wagtail that haven’t been publicly supported / documented in any way. To make sure this goes smoothly anyway, I’m here to provide an advance notice of what we’re aware of with this specific package 🙂

For this package, there are no confirmed issues, but we would recommend taking a look at any reuse of core templates:

torchbox/wagtail-ab-testing/wagtail_ab_testing/templates/wagtail_ab_testing/compare.html
1:{% extends "wagtailadmin/base.html" %}
7:    {% include "wagtailadmin/shared/header.html" with title=title subtitle=page.title tabbed=1 merged=1 %}

torchbox/wagtail-ab-testing/wagtail_ab_testing/templates/wagtail_ab_testing/add_compare.html
1:{% extends "wagtailadmin/base.html" %}
7:    {% include "wagtailadmin/shared/header.html" with title=title subtitle=page.title icon='people-arrows' tabbed=1 merged=1 %}

torchbox/wagtail-ab-testing/wagtail_ab_testing/templates/wagtail_ab_testing/results.html
1:{% extends "wagtailadmin/base.html" %}
7:    {% include "wagtailadmin/shared/header.html" with title=title icon='people-arrows' tabbed=1 merged=1 %}
126:    {% include "wagtailadmin/pages/_editor_js.html" %}

torchbox/wagtail-ab-testing/wagtail_ab_testing/templates/wagtail_ab_testing/report.html
1:{% extends 'wagtailadmin/reports/base_report.html' %}

torchbox/wagtail-ab-testing/wagtail_ab_testing/templates/wagtail_ab_testing/add_form.html
1:{% extends "wagtailadmin/base.html" %}
7:    {% include "wagtailadmin/shared/header.html" with title=title subtitle=page.title icon='people-arrows' tabbed=1 merged=1 %}
19:                    {% include "wagtailadmin/shared/field_as_li.html" with field=form.name %}
20:                    {% include "wagtailadmin/shared/field_as_li.html" with field=form.hypothesis %}
44:                    {% include "wagtailadmin/shared/field_as_li.html" with field=form.sample_size %}
66:    {% include "wagtailadmin/pages/_editor_css.html" %}
70:    {% include "wagtailadmin/pages/_editor_js.html" %}

In particular, the header template no longer supports the tabbed attribute.