version
<programming> One of a sequence of copies of a program, each
incorporating new modifications. Each version is usually identified by a number,
commonly of the form X.Y where X is the major version number and Y is the
release number. Typically an increment in X (with Y reset to zero) signifies a
substantial increase in the function of the program or a partial or total
re-implementation, whereas Y increases each time the progam is changed in any
way and re-released.
Version numbers are useful so that the user can know if the program has changed
(bugs have been fixed or new functions added) since he obtained his copy and the
programmer can tell if a bug report relates to the current version. It is thus
always important to state the version when reporting bugs. Statements about
compatibility between different software components should always say which
versions they apply to.
See change management.
(1997-12-07)
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