PHP 7.3 reaches end of support in December 2021 and Adobe Commerce 2.3.x reaches end of support in April 2022. We strongly recommend planning your upgrade now to Adobe Commerce 2.4.x and PHP 7.4.x to help maintain PCI compliance.

Magento_ScalableOms

Magento\ScalableOms (Order Management System) module provides ability for system extension (Sales can be configured to work with separate database). Extraction of Sales tables to separate database will guarantee better scalability for Magento, and will allow main server to be optimised for read operations which will reduce latency.