Breaking: #65305 - DriverInterface has been extended

See Issue #65305

Description

The getFolderInFolder() and getFileInFolder() functions have been added to DriverInterface.

Impact

Any FAL driver extension will stop working due to the change in the interface.

Affected Installations

Any installation with a custom FAL driver, like WebDAV or Dropbox.

Migration

The functions getFolderInFolder() and getFileInFolder() must be added to the custom FAL driver. A non-hierarchical driver needs to throw a "not implemented" exception when calling these functions.