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Major Changes

• #4363 3513280db Thanks @Andarist! - Removed the ability to target deep descendants with the initial property.

• #4363 3513280db Thanks @Andarist! - Removed the ability to target multiple descendants with the initial property.

• #4216 04cad53e0 Thanks @Andarist! - Removed the ability to define delayed transitions using an array. Only object variant is supported now:

  createMachine({
    initial: 'a',
    states: {
      a: {
        after: {
          10000: 'b',
          noon: 'c'
        }
      }
      // ...
    }
  });

• #3921 0ca1b860c Thanks @davidkpiano! - Spawned actors that have a referenced source (not inline) can be deeply persisted and restored:

  const machine = createMachine({
    context: ({ spawn }) => ({
      // This will be persisted
      ref: spawn('reducer', { id: 'child' })
  
      // This cannot be persisted:
      // ref: spawn(fromTransition((s) => s, { count: 42 }), { id: 'child' })
    })
  }).provide({
    actors: {
      reducer: fromTransition((s) => s, { count: 42 })
    }
  });

Minor Changes

• #4358 03ac5c013 Thanks @Andarist! - xstate.done.state.* events will now be generated recursively for all parallel states on the ancestors path.

Patch Changes

• #4361 1a00b5a54 Thanks @Andarist! - Fixed a runtime crash related to machines with their root state's type being final (createMachine({ type: 'final' })).

• #4357 84c46c1ae Thanks @Andarist! - Fixed an issue with not all actions of initial transitions resolving to the initial state of the machine itself being executed.

• #4356 81b6edafd Thanks @Andarist! - Fixed an issue with actions of initial transitions being called too many times.