Change record status: 
Project: 
Introduced in branch: 
8.7.x
Introduced in version: 
8.7.0-beta1
Description: 

In 8.7.0-alpha 1, new methods FileSystem::copy, FileSystem::move and FileSystem::saveData were introduced. For more details on that change, see the change notice.

Starting with beta1, support for an optional destination argument in those methods has been removed, you now must specify the destination.

'public://' or file_default_scheme() . '://' can be used as a replacement to get the same behavior but it is discouraged to copy files directly into the top-level directory.

Impacts: 
Module developers