The inline edition (moving block around) from the front website has been deprecated. This has been done for differents reasons:
- if the html is not valid the javascript can mess up the code.
- the layout management does not provide a good user experience.
The code will be remove in further version of PageBundle. if you want the old behavior you need to set to true the is_inline_edition_on key sonata_page configuration
The use_streamed_response is deprecated, the option is still available to avoid BC break