v6.22.1

Common: [Fixed] End Date expiration for Special Price was not detected and Product Price value wasn't submitted during the Revise action [#3435]
Common: [Improved] Some UI text updates [#3511]
eBay: [Added] Sold Qty column in the M2E Pro Listing grid [#3264]
Amazon: [Fixed] Unable to update the shipping status on Amazon without carrier and tracking number data [#3595]
Amazon: [Fixed] Undefined offset: 0 in Magento/Product/Rule/Condition/Product.php on line 101 when trying to use the Advanced Filter at the step of adding Magento Products to Listing [#3537]
Amazon: [Improved] Changes in the buyer-initiated order cancelation process [#3472]
Walmart: [Fixed] Error "Item (Ess\M2ePro\Model\Walmart\Listing\Product\Action\Processing) with the same ID already exists" [#1201]
Walmart: [Fixed] Unable to save Manual Variational Attributes/Options matches [#2931]