Magento 2.0.18 is the final 2.0.x release. After March 2018, Magento 2.0.x will no longer receive security patches, quality fixes, or documentation updates. To maintain your site's performance, security, and PCI compliance, upgrade to the latest version of Magento.
After your module
is built, you should test it. Read through the Definition of Done to confirm that your module and coding practice is compliant with Magento.