Preserve existing release notes

[tiagoboeing]

Is possible preserve a old changelog and only add new commits using this dependency?

Sometimes some repositories not follow a styleguide for commit messages from the beginning.

[cookpete]

There's no way to do this out of the box, although there is a --stdout option to output the changelog to stdout. You could store your old changelog in OLD_CHANGELOG.md or something, and then concat the result of auto-changelog --stdout with OLD_CHANGELOG.md into CHANGELOG.md

[ljharb]

It'd be a really useful feature to add for me; perhaps something like an HTML comment as a marker that auto-changelog automatically knows how to recognize?

[cookpete]

@ljharb Right now auto-changelog just overwrites any existing CHANGELOG.md and doesn't even check for an existing one. I suppose it wouldn't be too crazy to load the current one, and prepend rather than overwrite based on some hidden token. I'll re-open this issue as a reminder.

[cookpete]

As of 2.1.0 you can add <!-- auto-changelog-above --> to your templates, and the generated changelog will be added above.