software regression

A software regression can be of one of three types:

Specifically, it seeks to uncover software regressions, or old bugs that have come back.

The goal is to prevent software regression, whereby adding new features results in software bugs.

Though meant to fix problems, poorly designed patches can sometimes introduce new problems (see software regressions).

This decision was made to prevent software regression that might result from upgrading or from switching to imperfect clones.

A software regression is a software bug which makes a feature stop functioning as intended after a certain event (for example, a system upgrade, system patching or a change to daylight saving time).