> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://developer.staging.frame.io/platform/v4/changelog/2025/9/15/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developer.staging.frame.io/_mcp/server.

### Added:

* `GET` list files to *stable* added
* `GET` show file with metadata to *stable* added
* `GET` show file upload status to *stable* added
* `POST` copy file to *stable* added
* `PATCH` move file to *stable* added
* `PATCH` update file to *stable* added
* `POST` create version stack to *stable* added
* `POST` copy version stack to *stable* added
* `PATCH` move version stack to *stable* added
* `GET` list version stack children to *stable* added
* `GET` list version stacks to *stable* added

### Changed:

* `GET` show file with metadata in *experimental*, see *stable* API removed
* `GET` show file upload status to *stable* in *experimental*, see *stable* API removed
* `POST` copy file, `PATCH` move file in *experimental*, see *stable* API removed
* `PATCH` update file in *experimental*, see *stable* API removed
* `POST` create version stack in *experimental*, see *stable* API removed
* `POST` copy version stack in *experimental*, see *stable* API removed
* `PATCH` move version stack in *experimental*, see *stable* API removed
* `GET` list version stack children in *experimental*, see *stable* API removed
* `GET` list version stacks in *experimental*, see *stable* API removed