If multiple actions are dispatched on the same store:
store.dispatch(new SomeAction());
store.dispatch(new SomeOtherAction());
Are the reducers guaranteed to process these actions in the same order they were dispatched?
If multiple actions are dispatched on the same store:
store.dispatch(new SomeAction());
store.dispatch(new SomeOtherAction());
Are the reducers guaranteed to process these actions in the same order they were dispatched?
Yes they are.
But keep in mind that effects are async, for example if SomeAction is handled by EffectA and it dispatches another action EffectAction, that SomeOtherAction will probably be handled before EffectAction.