The modern world is very dynamic: consumers are becoming more demanding, fashion is variable. What yesterday was innovative and trendy tomorrow is not perceived by audience. Therefore, companies should keep abreast being successful.
You need to constantly change, while not losing brand identity. The most popular update tools are rebranding and restyling.
Rebranding involves the possibility of positioning, logo and style change.
Restyling is usually limited to style and design change.