Changes in this patch release:
- Improve robustness of parallel scene loading 8d48f58
- Fixes to
mi.sample_tea_floatfd16fbe
- Support for complex numbers or quaternions in
mi.ad.Adam optimize eff5bf6
- Improved error message when
mi.load_dict fails 7db5401
- Add missing implementations for
spot emitter (for AD) 9336491
