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## 4.67.1

**`(fix):`** Fall back to git tags for auto-versioning when the magic version is not
embedded in any generated source file. This fixes auto-versioning for
SDKs like Swift that use git tags for versioning (via SPM) rather than
a version field in source code.

## 4.67.0

**`(feat):`** Add `agents.llms-txt` and `agents.llms-full-txt` to `docs.yml` so customers can upload
custom `llms.txt` and `llms-full.txt` files that override the auto-generated versions
on their docs sites.

## 4.66.1

**`(fix):`** Fix GraphQL converter to properly handle interface types. Interfaces
with implementing types (e.g., `CatalogProductOption` with
`CheckboxOption`, `MultipleChoiceOption`, etc.) are now converted to
`undiscriminatedUnion` shapes so that all possible concrete types are
discoverable in generated docs. Interfaces with no implementations
fall back to plain object types.

## 4.66.0

**`(chore):`** Internal infrastructure for GitHub Actions-based SDK generation automation.

## 4.65.3

**`(fix):`** Fix broken-link checker incorrectly flagging absolute links in versioned
docs pages as broken.

## 4.65.2

**`(fix):`** Improve error messages for `fern docs preview list` command. The default
error now suggests checking authentication instead of network connectivity,
and the full error response is logged at debug level for easier diagnosis.