WARNING: Version 5.1 of Beats has passed its EOL date.
This documentation is no longer being maintained and may be removed. If you are running this version, we strongly advise you to upgrade. For the latest information, see the current release documentation.
As a general rule, we strive to keep backwards compatibility between minor versions (e.g. 5.x to 5.y) so you can upgrade without any configuration file changes, but there are breaking changes between major versions (e.g. 5.x to 6.y).
We also list the breaking changes at the top of the release notes for each version.