Refinement of the touch-to-coordinate mapping.
For the first time in a mainstream TWRP release, 2.8.7.0 included experimental support for MultiROM—a feature allowing users to boot multiple Android ROMs (operating systems) on a single device. This was a game-changer for developers and power users. twrp 2870
The Definitive Guide to TWRP 2.8.7.0: Features, Installation, and Legacy Refinement of the touch-to-coordinate mapping