Do we Install new patch over existing game or uninstall existing game and start from scratch?

I see a Windows patch but no Linux patch?

Last patch at GOG for Linux is PATCH 20160408-01 (GOG-3)

It seems I missed the last patch. Here's the changelog:

Changelog for Patch 20160616-01 / GOG-15 (Windows) / GOG-5 (Linux) (added 27 June 2016):

Interactors:
Most of the feedback we receive is about our user interface. We’ve decided to change all interactors to make things clearer. From now on, every interactor you will see will be a little square (see image). When you approach, the square will turn a little and you will be able to interact with the object. If you don’t know what action it might trigger, you will see a brief description or a small image of what the interactor does after a few seconds.

No More Combine Menu:
We decided to remove the combine menu. Instead, when you have all required items, you will need to hold the interaction key (usually the E key or the A button on a controller) until the bar is full. Since our game doesn’t really focus on crafting, why not find a simpler way to do so!

Known issues:
Here are some of the known issues that we are already working on fixing:
- The mouse scroll for texts works now. However, some the W and S buttons don’t work in all of them;
- When you have the lantern equiped (and sometimes with the flashlight) and you smoke a cigarette, the lantern is still in your hands until the end of the animation.


Download page says the Mac version is version 20160515-01. Is that correct?

Changelog for update 2017-01-27 / GOG-16 (Windows) / GOG-5 (Linux) / GOG-? (Mac) (added 27th January 2017):

- With this update, the game world and play time will remain the same as before. It simply is a more polished first hour (or so) of gameplay that won’t be erased in March when Kona finally launches. Still, you’ll find many drastic improvements.

- You will also notice that all voices (French and English) are now in the game and that texts, subtitles and menus have been localized in Italian, German and Spanish thanks to Ravenscourt (Russian language is still part of the plan and we will keep you in the loop as soon as we are ready to add it to the game).

- Finally, you can now use F to equip your flashlight and M for the map (it works in the car now). The key remapping feature for keyboards will come in another update we will publish soon.

Changelog for Patch 2017-03-17 / GOG-? (Windows) / GOG-7 (Linux) / GOG-? (Mac) (added 17h March 2017):

Kona has left Games in Development!

What’s new
If you played Kona on Early Access, you probably wonder what will change starting today. During early access, approximately 30% of the game content was available. Starting today, you can finally discover the rest!
You will also be able to find and drive a snowmobile and you can expect new encounters, among other things (we wouldn’t want to spoil the whole thing now, would we).

Changelog for Patch 2017-03-17 (hotfix) (added 17 March 2017):

- Adds GOG Galaxy Achievement support

Changelog for Patch 2017-04-04 (added 05 April 2017):

FIXES AND IMPROVEMENTS
- We fixed the headlight bug and hid a second one, just in case
- You can now keep all random pictures you take (new tab in the journal)
- We fixed the disappearing Iron Box bug (it should reappear in your inventory)
- We fixed “The Hunt” achievement (it will unlock when you reload a save in which you found all crossbow bolts)
- We added a light to be able to see the map in the car at night
- Radio interacting icon in the car is now hidden when holding the map
- Various minor bug fixes and optimizations

UPCOMING CHANGES & KNOWN ISSUES
- We will add an option to delete pictures in the journal
- We will add an option to disable quick loadings between areas
- We will add Russian language for texts, interface and subtitles
- NVIDIA will whitelist Kona in its driver to support Ansel and other NVIDIA features
- We will fix the bug with the notification stuck on-screen
- We will fix the bug of the night that never triggers

Any chances for proper fullscreen? I need to switch to the dreadful aero theme on Win 7 every time to enable v-sync.