What is a Changelog?

Definition of a changelog file in software engineering.

Definition

A changelog is a file (typically named CHANGELOG.md) that contains a chronologically ordered list of notable changes for each version of a project. It serves as the historical record of the repository.

Keep a Changelog standard

Many projects follow the "Keep a Changelog" standard, which advocates for grouping changes under clear headers like Added, Changed, Deprecated, Removed, Fixed, and Security.