Adobe has released security updates for Magento versions.
Magento 2.0 was released in November 2015. In case you can't remember that far back
Magento is releasing new versions of Magento Commerce and Open Source
Magento Commerce and Open Source 2.3.1, 2.2.8 and 2.1.17 contain multiple security
Magento has released new security patches for Magento 1.x merchants and Magento 2.x
Magento has released new security patches for Magento 1.x and 2.x merchants