The way our release schedule works is that we have to know what we'll be working on a couple weeks before so we can follow a plan. The content of the recent update was decided on weeks earlier, hence we also mentioned at multiple stages that we will need a bit of time to work on legacy feedback related adjustments.
Everything is tested at minimum 2 weeks before it is released. If you'd like to provide feedback early, just join the frontline pioneers and you'll have access to content before it is released for everyone. Also helps us tremendously with adjustments.
As mentioned earlier, we will reimplement the double ressource icons, they got lost along the way of the release and will also implement further adjustments to the province list.
There is no simple "undo all da stuff" button for an update. It is possible but it involves not just some aspects of a feature but every bit of work we did in the last 2 weeks. It's quite frankly not done unless the game crashes on a large scale suddenly.