Change record status: 
Project: 
Introduced in branch: 
8.x-2.x
Introduced in version: 
8.x-2.4
Description: 

The signature of CartProvider methods which accept a $store has changed to allow a NULL value, which indicates that the current store should be used.

Before:

public function createCart($order_type, StoreInterface $store, AccountInterface $account = NULL) {

After:

public function createCart($order_type, StoreInterface $store = NULL, AccountInterface $account = NULL) {

This simplifies the calling code in cases when only a single store is ever used.

Impacts: 
Module developers