Change record status: 
Project: 
Introduced in branch: 
8.2.x
Introduced in version: 
8.2.0
Description: 

Node::getRevisionAuthor() and Node::setRevisionAuthorId() are deprecated. You should use Node::getRevisionUser() and Node::setRevisionUserId() instead.

Before:

$node->setRevisionAuthorId($user->id());
$user = $node->getRevisionAuthor();

After:

$node->setRevisionUserId($user->id());
$user = $node->getRevisionUser();
Impacts: 
Module developers
Site templates, recipes and distribution developers