Migration from previous versions

Miragtion 2.0b10 -> 2.0b17

Registry is now created without dispatcher. After that you need to setup dispatchet using setup_dp method
Registry.register_start_handler now requires router (or dispatcher)

Main objects like Dialog, LaunchMode and DialogManager should be imported directly from aiogram_dialog package.
Whenable is moved to widgets.common subpackage
When finding widget by id you will get managed version of widget. This objects no more expect DialogManager or ChatEvent arguments in their methods
For ListGroup items callbacks you will get SubManager which behavior slightly changed.
SubManager moved to aiogram_dialog package
ManagedDialog protocol renamed to DialogProtocol
Dialog no more contains .next, .back and .switch_to methods. They are available in DialogManager
DialogManagerFactory protocol simplified
no more ManagedDialogAdapterProto. You will get Dialog instance instead
no more data in Context. Renamed to start_data many time ago
dialog_data and start_data added to DialogManager, data is renamed to middleware_data

reset_stack was replaced with StartMode. E.g. reset_stack=true is now mode=StartMode.RESET_STACK
dialog no more changes current aiogram state
In manager context and current_intent() were replaced with current_context() call.
- dialog_data is a dict to hold user data
- widget_data is a dict to hold data of widgets
- start_data is a data provided whe dialog start
- state is current dialog state
When subdialog finishes parent is restored with previous state, not which it was started
Changed signature of on_process_result callback. It now accepts start data used to start subdialog
Group.keep_rows option removed. Set width=None (default value) if you want to keep rows.