By Rob Waugh (MailOnline)
"Facebook's Timeline - a new look for people's Profile pages which exposes their entire history on the site - will become mandatory for all users.
The 'new look' has been voluntary up until now.
From now, users will simply be notified that they are being 'updated' via an announcement at the top of their home page, which users click on to activate Timeline.
As with voluntary switches to Timeline, those who are 'updated' will have just seven days to select which photos, posts and life events they want to advertise to the world
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