1.4.1 Bug Fixes:
1) Boiler Room: Fixed issue with returning balls being affected by steam
2) Boiler Room: Made returning tube glass more transparent
3) Fixed wall detection issue on walking backward key
1.4.1 Enhancements
1) Released "Carousel Solver" Achievement
2) Released "Flora and Fauna" Achievement
3) Released "Escaped!" Achievement
Release Notes for 1.4.1
Source: Steam Community (opens in a new tab)