The products in the Elastic Stack are designed to be used together and releases are synchronized to simplify the installation and upgrade process. The full stack consists of:
This guide provides information about installing and upgrading when you are using more than one Elastic Stack product. It specifies the recommended order of installation and the steps you need to take to prepare for a stack upgrade.
For detailed information about breaking changes in 6.6.0 and install and upgrade instructions for specific components, see the individual product reference guides.