Changelog for patch 1 (added 09 October 2017):

Difficulty changes:

- Final boss health: -15%
- Acid Roach:
-- Health: -18%
-- Acid pool damage: -16%
- All roaches can now drop Repair Kits. This was disabled, for some obscure reason.
- Decreased the difficulty of some of the hardest encounters in the Haunted (L03) and Librarian (L04) levels.
-- Note: For this to take effect, you have to load an autosave or quicksave in the previous level (so end of L02) and then continue to L03, or to just start a new game.

Added new options:

- Invert mouselook: You can now invert the up-down mouselook.
- Mouselook sensitivity.
- Toggle idle camera animation: When you remain still for a while, the camera starts looking around. You can toggle this now.
- Field of view slider.
- Phonodiary auto-play: You can toggle whether you want phonodiaries to automatically play or not.
- Aspect ratio filter added for 21:9 (2.33:1). Set the filter to “All” if you don’t see your resolution listed in the list.

Bug fixes:

- Fixed a dead-end in the Office level (thanks TurnSpender!).
- Fixed: Hardware cursor flickers while mouselooking.
- Fixed: Restoring HP and EP is not 100% correct in rare cases.
- Squashed a few other nasty bugs. (No roaches were harmed! That’s up to you guys!)

Changelog for patch 1 Hotfix (added 10 October 2017):

- Fixed a bug introduced in Patch 1. The game should now run well again.

Changelog for Patch 2 (added 03 November 2017):

We know it took a lot more time than it should have, for which we are sorry, but it’s finally here! In today’s patch (Patch #2), we bring you 9 new languages: Chinese (simplified), Czech, French, German, Japanese, Polish, Russian, Slovak, and Spanish.

Apart from these official languages, we also bring you the ability to write your own localization! Go to Vaporum/Localization and read the ReadMe.txt for info on how to start. We appreciate any feedback on the localization so if you find a typo, incorrect wording, or anything, feel free to tell us, and we will fix it for the next patch.

Along with the languages, we also updated the game.

Here are the patch notes:

* Added 9 official languages: Slovak, Czech, Russian, Polish, German, Spanish, French, Japanese, and Chinese (simplified).
* Added the ability to write community localizations. Head to the Localization folder and read the help file for more info.
* Improved organic hit sounds to sound more meaty and impactful.
* Added difficulty change prompt when you die a lot in a short time.
* Tweaked: Emergency Braces module will now also activate when you’re below the threshold when it comes off cooldown. Previously, this only activated when taking damage.
* Tweaked: Drainer gadgets now heal you for a portion of your max integrity, with a hard cap, instead of flat heal. Previously, you could abuse the system to get a lot more healing. Check this post for more info. Thanks motorbit!
* Fixed: In some cases, the automap may remain disabled even after returning from the teleport chambers in the Arx Vaporum level.
* Fixed: In rare cases, in the last room of Creepy Little Things, when you teleport back, the door remains closed and you cannot go back.
* Fixed: The chest with coal on platform in Boiling Point sometimes glitches, falling down.
* Lots of other small fixes.Thank you!

Changelog for patch 3 (added 21 November 2017):

- Added a direction damage indicator so you can see where the damage is coming from.
- Increased the max FOV to 150. Note that values above 135 will likely cause visual glitches (this also depends on the screen ratio).
- Fixed missing names for some keyboard keys.
- NOTE: Please make sure your controls work after the patch, as some of the hotkeys might get unassigned. You just need to reassign them once more.
- Other small fixes.

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Changelog for patch 4 (added 06 December 2017):

- Added a Stop Time Mode.
- Added an on-screen directional keypad.
- Added item comparison tooltips.

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Changelog for patch 5 (added 19 December 2017):

- New exoskeleton rig.
- 3 new circuits & 9 modules.
- Level cap increased from 16 to 17.
- Enemy Showcase added.

*cough cough*

Woops, I see. Since I've tagged this changelog as favourite, I had totally missed the stickied one of the devs. Thanks HSL!

Hehe, have a great holiday!