> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt. ## 5.89.3 **`(fix):`** Fix `Cannot resolve endpoint: in file .yml` when importing an OpenAPI spec whose `operationId` contains a dot and does not share a prefix with its tag (e.g. `actions.index` under the `Custom Actions` tag). Dotted operation ids are now collapsed into a single valid endpoint name, so `x-fern-pagination` resolves correctly. Note that this renames the generated method for these endpoints (`actions.index` is now imported as `actionsIndex` rather than verbatim); set `x-fern-sdk-method-name` to pin a specific name. ## 5.89.2 **`(fix):`** Fix OpenAPI import dropping the `null` branch of a `anyOf`/`oneOf` when a schema that contains such a branch is referenced via `$ref`. References to these schemas are now correctly treated as nullable, so generators that distinguish optional from nullable (e.g. TypeScript) emit `| null` instead of silently dropping it. ## 5.89.1 **`(fix):`** Fix `fern docs preview list` omitting previews created with a named `--id`. The command filtered server results with a hex-only pattern that dropped any preview whose id contained letters outside a-f. Preview deployments are already filtered server-side, so the redundant client-side filter has been removed. ## 5.89.0 **`(feat):`** Rename the `--pack` and `--pack-mode` flags on `fern generate` to `--package` and `--package-mode`, and add `--package-only`, which builds the distributable artifact into `fern-dist/` and removes the generated SDK source, leaving only the package in the output directory.