The 1.07 update was the culmination of two years of improvements, addressing feedback from players to make the experience more fluid and reliable, especially given its origin as a 2012 free RPG Maker 2000 project.
In v1.07, the roses (which serve as the characters' lifebars) wilt faster. Specifically: Ib v1.07
The game motion was made smoother, alleviating some of the graphical stuttering present in earlier versions. Ib v1.07