Changelog Patch 1.0.3 / GOG-5 (Windows) / GOG-3 (Linux) / GOG-2 (Mac) (added 21 October 2016):

- Hotfix for a bug that would prevent the game from starting on AMD graphics cards.

Changelog for patch 1.0.4 / GOG-6 (Windows) / GOG-3 (Mac) / GOG-4 (Linux) (added 29 November 2016):

- Fixes bug that put the camera in the wrong place in some cutscenes.
- The game now works properly on Mac Retina displays

Changelog for patch 1.1 / GOG-7 (Windows) / GOG-4 (Mac) / GOG-5 (Linux) (added 21 December 2016):

- Leaderboards can now be viewed from the level select menu (press Y on controller or L on the keyboard)
- Level select screen now shows the status of each completed level (completed without dying / completed while keeping all tokens)
- Added replay level button (Back on controller, Backspace on keyboard) when at the stats screen after each level
- Final boss fight was broken when it was started again after watching the credits
- Fixed an issue where cutscenes would no longer skip on request when changing levels frequently
- Removed a render target texture that wasn't even used, saves a bit of memory
- Fixed a bug where gravity wasn't reset correctly after player died inside a force field
- Player deaths are now counted only if a save point was used, otherwise they are reset on respawn
- Fixed a file handle leak which could cause problems during loading on macOS

Changelog Patch 1.1.3 / GOG-8 (Windows) / GOG-6 (Linux) / GOG-5 (Mac) (added 10 February 2017):

- Fixed a technical problem on older CPUs

Changelog Update 1.2.0 / (Windows, Linux and Mac) / (added 02 June 2017):

- Added localized text for Chinese (both simplified and traditional) and German
- On low quality settings, the most expensive post FX are now disabled to improve frame rates on low-end graphics cards
- Optimized render state management, which improves performance, especially on low-end CPUs
- Optimized task management, which positively impacts performance and battery usage
- Fixed a very rare crash which happened after switching to a new level
- Fixed stuttering of intro video
- Minor improvements to loading times
- Fixed a few minor bugs detected by UBSan

Mac:
- Enabled usage of SSSE3 CPU instructions (previously used SSE2 only). Probably no gain in performance because of this, but it can't hurt, either.

Linux:
- Removed dependency on libGL.so, all GL functions are now dynamically loaded

Changelog Update 1.2.1 / (Windows, Linux and Mac) / (added 09 June 2017):

- Fixed a bug in the menu where different menu sections were drawn overlapping each other
- Fixed a bug in the credits section where the chinese variation of the logo was displayed when a language was selected that was neither Chinese nor English
- OpenGL optimizations

Changelog for update 1.2.2 (added 24 July 2017):

- Fixed stutter on quad core CPUs

Linux & Mac:
- Reduced memory usage

Changelog for Update 1.3.0 (added 12 December 2017):

- Added compression for game files, which reduces disk usage from 1.7GB down to about 500MB
- Added multi-threaded asset loading, which improves loading times
- Improved controls menu, each input can now be mapped to multiple buttons or keys
- Added Xbox 360 controller prompts (from https://opengameart.org/content/free-keyboard-and-controllers-prompts-pack)
- Fixed a bug which caused controls settings not to be saved
- Fixed minor localization issues
- Updated libSDL to 2.0.7