This build introduced several "industry-first" features that simplified complex 2D animation tasks:

Moving beyond simple triangular warping, Quad Meshes allow for more predictable and natural deformations, enabling 2D characters to move with 3D-like depth and perspective.

represents a pivotal release in the history of the 2D animation industry, marking the software's "triumphant return" to its original developers, Lost Marble LLC . Released in April 2021, this version corrected the course of the software following a period of mixed community feedback under previous ownership, focusing on stability and professional-grade rigging tools. The Evolution of Moho Pro 13.5

Enhancements were made to how PSD files are handled, preserving layer masks and improving the ability to re-link source images for individual layers. System Requirements