While specific changelogs vary by the developer's release notes, a "v1.15" typically signals a mid-to-late stage development cycle. Usually, this includes:
Tweaks to the save/load system or gallery interfaces. Safety and Installation File: DrAmana_Sexual_Therapist-v115-pc_compress...
Resolution of "game-breaking" glitches found in v1.14. While specific changelogs vary by the developer's release