2.0

2.0

1. (technology, Internet) The second version of something.

• 1.0

From the ellipsis of (version + ) 2 + . + 0, as used in the identification of product versions, especially in the microcomputer software industry.

• (US) IPA^(key): /tu pɔɪnt oʊ/, [tʰu̟ pʰɔ̃ɪ̃ˈnoʊ]

2.0 (not comparable)

1. A second major version of something or, figuratively, of someone.
   • 2007 January 24, Paul West, “Despite Woes, Bush Shows Resolve”, in The Sun, Baltimore, MD:

     Later that year, Bush 2.0 was launched, when he stood before Congress to reassure a nation unhinged by the terror of Sept. 11

   • 2010, Jeffrey M. Stonecash, New Directions in American Political Parties, page 230:

     Dubbed “Barack Obama 2.0” by insiders, the plan called for hiring full-time organizers to mobilize the Internet-based grassroots network

   • 2011 February 7, “Christina Aguilera's anthem not so Super”, in Chicago Tribune:

     We need a new draft for 2011, because in America 2.0, our national anthem should be almost tweet-able.

• Usually used as an attributive modifier after the noun modified.

• Web 2.0