# October 29, 2025

## 0.100.2

**`(fix):`** Generate synthetic operationIds for OpenAPI callbacks that don't have an explicit operationId. This ensures callbacks are properly rendered in documentation even when the OpenAPI spec doesn't include an operationId for the callback operation.

## 0.100.1

**`(fix):`** Fix OpenAPI auth scheme hard-coded names.

## 0.100.0

**`(feat):`** Add support for explicit default tab variants in tabbed navigation. You can now specify which tab variant should be the default using the `default: true` property instead of relying on the first tab being default.

## 0.99.4

**`(feat):`** Adds support for availability defined in API reference sections and packages.

## 0.99.3

**`(fix):`** Improve YAML parsing error messages to include line number, column number, and a snippet of the problematic YAML when duplicate mapping keys or other syntax errors are encountered in generators.yml.

## 0.99.2

**`(fix):`** Preserve trailing newline in fern.config.json during `fern upgrade`. Fixes issue where tools requiring a newline at EOF failed after running upgrade.