4.0

4.0 may refer to:

• 4 (disambiguation)
• 4.0 (Mónica Naranjo album), a 2014 compilation album by Spanish recording singer-songwriter Mónica Naranjo
• LP Underground 4.0, a 2004 CD and digital download set by Linkin Park Underground
• Live Free or Die Hard, a 2007 American action thriller film (released as Die Hard 4.0 outside North America)

• Industry 4.0

Topics referred to by the same term

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