ECS breaking changes
Breaking changes can impact your Elastic applications, potentially disrupting normal operations. Before you upgrade, carefully review the ECS breaking changes and take the necessary steps to mitigate any issues.
Remove previously deprecated fields
We've removed fields that were marked as deprecated in the previous major version of ECS.
The removed fields are: process.parent.pgid, process.pgid, service.node.role,
service.origin.node.role, service.target.node.role.
For more information, check #2410.