upgrade magento community edition to latest version

today we recieve an email from Magento company pointing that customers with magento commerce 2.2.x must upgrade their product version from 2.2.x to 2.3 because there will not be supported no longer. right now we are using the community edition for magento 2.2.6 and really don’t if it’s necesary, also some plugins may not work with the lastest version and that means work to do.