About deprecations in Symfony 4.3

[Nek-]

We are aware than Symfony 4.3 changed the API of the dispatcher you know today, this impact us directly. We will not provide a fix that would look like that (ugly, isn't it ?).

What we are going to do is release a new major version of the domain component compatible only with Symfony >= 4.3.

This will obviously come before Symfony 5.0. If you really want a change on the current version, PR are open.