User blog comment:MisterWoodhouse/Pausing UCP migrations to resolve some critical blockers/@comment-271416-20200831140749/@comment-24155515-20200831141250

Both editors available on on UCP are VisualEditor, one is source and one is not, they're both 2017.

The 2010 editor is this one, which is not available on any Wikia wikis at present.

The 2006 editing toolbar (pre-UCP source editing) is going away, as is the pre-UCP rich-text/WYSIWYG editor AFAIK. VisualEditor as it is on pre-UCP is technically being replaced with the newer (2017) VisualEditor from Wikimedia.