What is difference between Bootstrap, Twitter Bootstrap, and Bootstrap 3?

twitter-bootstrap, twitter-bootstrap-3

Solution

In the context of CSS frameworks, Bootstrap and Twitter Bootstrap are the same thing.

Bootstrap 3 is the third major version of Twitter Bootstrap. (When this question was asked, it had not been released yet.)

(There's another unrelated definition: to bootstrap a computer program or system can refer to running certain phases of early startup. It's often abbreviated as "booting", as in "booting up a computer". Wikipedia has an extensive definition and etymology which I won't reproduce here.)

Problem

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