Change record status: 
Project: 
Introduced in branch: 
2.0.x
Introduced in version: 
2.0.0-alpha2
Description: 

Default Content serializes exported entities as YAML files. However, in order to keep backwards compatibility with files exported with the 8.x-1.x versions, it still allows imports of HAL-JSON serialized files.

Importing entities from HAL-JSON serialized files is deprecated and this capability will be removed in the next major version of the module.

In order to prepare for the next major version, import all entities and re-export them as YAML files.

An exception is thrown when attempting to import .json files without having hal and/or serialization module is not installed. Explicitly require them to ensure they are installed before the module containing the default content.

Impacts: 
Site builders, administrators, editors
Module developers