Is your feature request related to a problem? Please describe.
MONAI v0.6.0rc1 is available:
https://pypi.org/project/monai/0.6.0rc1/

this ticket tracks any issues with the new version of MONAI and verifies that the new features are usable:

• load MMAR pretrained https://github.com/Project-MONAI/MONAI/blob/0.6.0rc1/monai/apps/mmars/mmars.py#L204-L207
• dynamic datalist
  there are breaking changes since 0.5.x, we'll release demos Update all the examples & notebooks to use new APIs (14/July) MONAI#2402

cc @Nic-Ma @yiheng-wang-nv