Update
You can update the theme easily via the Contao Manager. Then open the install tool and update the database.
A database backup beforehand never hurts!
Update from version 1.x to 2.x
When updating the theme from version 1 to 2, a few changes are necessary, because Contao Bootstrap and Bootstrap Grid are no longer dependencies of the theme in version 2.
Changing the page template
In the page layouts, the page template fe_page_odd (one column), fe_page_odd_left (two columns with left column), fe_page_odd_right (two columns with right column) or fe_page_odd_three_columns (three columns) must be selected (previously fe_bootstrap_odd).
Adjusting the navigation modules
For the navigation modules (e.g. Navigationsleiste mit Schräge and Navigationsleiste ohne Schräge), the module type must be changed to Navigation menu.
As module template, mod_navigation_odd_sloping (navigation with slant), mod_navigation_odd (without slant) or mod_navigation_odd_sloping_topright (slant in the opposite direction) must be selected.
As navigation template, nav_default_odd must be selected.
Adjusting the user modules
If the module types Registration or Personal data are used, member_grouped must be selected as the template (previously member_grouped_bs_odd).
Bootstrap gallery
If a Bootstrap gallery was used, the element type must be changed to a regular gallery.


