**WARNING** - 90 inadvertently introduced a breaking API change in DiffSync 1.4.0 through 1.4.2 (101); this change was reverted in 102 for DiffSync 1.4.3 and later. We recommend not using this release, and moving to 1.4.3 instead.
Fixed
- 95 - Removed optional dependencies on `sphinx`, `m2r2`, `sphinx-rtd-theme`, `toml`.