June 23, 2025 | Fern Documentation

2.0.0

(chore): The following configuration names have changed, but the old names will continue to work.

experimental-enable-forward-compatible-enums is now enable-forward-compatible-enums
experimental-additional-properties is now additional-properties

(feat): This release changes the defaults for the following custom configuration in generators.yml.

Option	Before	Now
`additional-properties`	`false`	`true`
`enable-forward-compatible-enums`	`false`	`true`
`generate-mock-server-tests`	`false`	`true`
`inline-path-parameters`	`false`	`true`
`simplify-object-dictionaries`	`true`	`false`
`use-discriminated-unions`	`false`	`true`

To avoid breaking changes, explicitly set the options above with the Before values in the config of your generator in generators.yml.