changelog show | grep something is nice to search for changes, however you often want to know the specific version in which something was added/fixed/etc., so the user likely wants that context:

changelog show | grep new feature I want to use yields

- new feature I want to use

changelog grep new feature should add the necessary context:

## [1.2.3] - 2020-01-01

### Added

- **new feature** I want to use

Potential aliases could be

• changelog find already taken by finding the changelog file
• changelog search

TODO

• Multiline items are not handled properly, e.g. searching for async in https://github.com/siimon/prom-client/blob/master/CHANGELOG.md leads to the code fenced items not being rendered properly