Final answer:
The statement 'Changelogs take you the last mile in documentation' implies that documentation is incomplete without changelogs, as they are crucial for providing a complete and understandable historical record of a project's changes.
Step-by-step explanation:
When the statement 'Changelogs take you the last mile in documentation' is mentioned, what it means is that b) Documentation is incomplete without changelogs. Changelogs provide a historical record of changes made to a project, which include new features, bug fixes, and improvements. The metaphor refers to completing the final, crucial part of a journey—in this case, the journey of understanding the evolution of a project.
Changelogs are important in documentation because they grant users and developers insight into the development process, helping them to understand what has been altered, when, and why. Without a changelog, individuals would have to manually compare different versions of the project to understand these changes, which can be painstaking and time-consuming. Therefore, changelogs are an essential part of thorough documentation, contributing to the transparency and usability of a project.