# Changelog

## [New Dubbing & Assets APIs](https://docs.synthesia.io/changelog/new-dubbing-assets-apis)

8 months ago

- [**Dubbing API**](https://docs.synthesia.io/reference/dubbing) now available: automatically translate and re-voice video content into multiple target languages.
- [**Assets API**](https://docs.synthesia.io/reference/assets-1) added for managing uploaded files (video, image, audio) used as input for Dubbing and Video APIs.
- Assets API supports large file uploads via temporary AWS S3 credentials with multipart upload.
- See the [step-by-step guide](https://docs.synthesia.io/reference/upload-large-files-via-temporary-aws-credentials) for end-to-end dubbing workflows.

## [API Improvements](https://docs.synthesia.io/changelog/api-improvements-1)

over 1 year ago

Rate limits for Synthesia's APIs have been updated:

## [API Improvements](https://docs.synthesia.io/changelog/api-improvements)

almost 2 years ago

- [List videos endpoint](https://docs.synthesia.io/reference/list-videos) now accepts an optional query parameter for specifying the source of the video (either `workspace`, `my_videos`, or `shared_with_me`).
- [List templates endpoint](https://docs.synthesia.io/reference/list-templates) now accepts an optional query parameter for specifying the source of the template (either `workspace`, or `synthesia`).

## [API Improvements](https://docs.synthesia.io/changelog/api-improvements-august)

almost 2 years ago

- [List videos](https://docs.synthesia.io/reference/list-videos) & [retrieve video](https://docs.synthesia.io/reference/retrieve-a-video) responses and [video.completed webhook payload](https://docs.synthesia.io/reference/webhook-events#videocompleted) now includes `.srt` / `.vtt` captions download URLs.
- [New webhook event "video.failed"](https://docs.synthesia.io/reference/webhook-events#videofailed) has been introduced.
- [List videos](https://docs.synthesia.io/reference/list-videos) & [retrieve video](https://docs.synthesia.io/reference/retrieve-a-video) responses and [video.completed webhook](https://docs.synthesia.io/reference/webhook-events#videocompleted) payload now includes thumbnail download URL.
- [List videos endpoint](https://docs.synthesia.io/reference/list-videos) response will include all videos with at least 1 generated version, regardless of whether or not the current version is a draft.
- [List templates endpoint](https://docs.synthesia.io/reference/list-templates) response now includes both custom and stock templates.
- [List videos endpoint](https://docs.synthesia.io/reference/list-videos) response now includes videos from both [Workspace](https://docs.synthesia.io/docs/workspaces) and [My videos](https://docs.synthesia.io/docs/my-videos-page).

## [Synthesia APIs are generally available](https://docs.synthesia.io/changelog/synthesia-apis-are-generally-available)

over 2 years ago

Synthesia APIs are no longer in Beta and are generally available for Creator and Enterprise Synthesia plans.