Versions are numbering as:  X.Y.Z

X - major version number
  - will be changed when decided to do
  - it will be stated if it will have model configs compatible with
    some previous version or if all model configs will be deleted

Y - config version number
  - will be increased, when change in model configs will be introduced and
    all models configs will be erased after this change

Z - will be increased when changes which will not modify
    model configs will be applied