[discrete]
[[breaking_80_transform_changes]]
==== Transform changes

.{transforms-cap} created in 7.4 or earlier versions must be upgraded.
[%collapsible]
====
*Details* +
Early beta versions of {transforms} had configuration information in a format
that is no longer supported.


*Impact* +
Use the {ref}/upgrade-transforms.html[upgrade {transforms} API] to fix your
{transforms}. This upgrade does not affect the source or destination indices.
====