Start with the reader and the purpose
A project changelog is a concise record of meaningful changes to a deliverable. It helps a client, collaborator, reviewer or future maintainer understand what is different from the previous version. That is not the same as a task list, which tracks work to be done, or a meeting log, which records discussion. A changelog focuses on changes someone can see, use, review or depend on.
Before writing one, decide who will read it. A client reviewing a website may need to know that the contact form now asks for a phone number. A designer handing over files may need to note a revised logo variant and where to find it. A small software team may also need migration or compatibility notes. The level of detail can vary, but every entry should answer a practical question: what changed, and why should the reader care?
Include changes that affect the deliverable
Record additions, removals and substantial revisions to features, content, design or behavior. Include fixed issues when the fix changes what a user experiences or what a reviewer should test again. Also note changes to requirements, file structure, access, dependencies or handover instructions if they affect how someone uses or maintains the work. For a student project, that might mean noting that interview findings led to a new navigation layout. For a freelance illustration, it might mean recording a changed color palette approved for the final files.
Not every action needs an entry. Routine saves, internal experiments that never became part of a shared version and minor formatting adjustments usually belong elsewhere, if they need recording at all. Group related small changes when one summary is clearer than several near-identical lines. If a change is still proposed rather than completed, keep it in a task tracker or decision log until it reaches the version the changelog describes.
Write entries around the outcome
Use a consistent format: a version or milestone label, followed by short entries organized under headings such as Added, Changed, Fixed and Removed. Choose labels your project already uses; a shared draft name can be as useful as a release number. Begin each entry with a clear action verb and name the part of the project affected. Add the reason or consequence when the change alone would be ambiguous. Keep the wording understandable to the intended reader rather than copying shorthand from internal messages.
For example, “Updated page” leaves a reviewer guessing. “Changed the services page heading and opening paragraph to match the approved project brief” identifies both the location and the outcome. Likewise, “Fixed form” is less helpful than “Fixed the contact form so submissions display a confirmation message.” If a change requires action, say so plainly: “Replaced the image files in the handover folder; use these versions for future edits.” These are examples of entry style, not a requirement to document every small wording or file change.
Keep decisions and sensitive details in the right place
A changelog should be brief enough to scan. It can point readers to a project brief, review note or decision record when they need the full context, but it should not reproduce lengthy discussions. If a feature was removed, state what was removed and, when useful, the agreed reason. Avoid attributing blame to an individual. The aim is to preserve a useful account of the project, not to settle disagreements in a release note.
Check entries before sharing them outside the team. Internal ticket references, draft file paths, private feedback and client information may not help an external reader and may not be appropriate to publish. Teams can maintain a detailed internal history and a shorter client-facing changelog if the audiences need different information. Both should describe the same delivered changes accurately.
Make updating the changelog part of delivery
A changelog is easier to maintain when it is updated close to the work, not reconstructed at the end. During a project, jot down candidate entries when a meaningful change is accepted. Before sharing a new draft or final package, compare those notes with the actual deliverable, remove entries for work that did not ship and group the rest under the appropriate milestone. One person can own the final wording even when several people contribute notes.
Include the changelog where the reader will look for it: alongside shared project files, in a handover document or near the delivered version. At review time, use it to direct attention to changed areas and any checks the reviewer should make. At handover, it becomes a compact guide to how the finished work evolved. A good changelog does not try to prove how busy the team was; it makes each delivered change easier to understand and act on.
