Hi PanickyMoth78
There is indeed a versioning mechanism available for the open source version 🎉

The datasets keep track of their "genealogy" so you can easily access the version that you need through its ID

In order to create a child dataset, you simply have to use the parameter "parent_datasets" when you create your dataset : have a look at
https://clear.ml/docs/latest/docs/clearml_data/clearml_data_sdk#datasetcreate

You also alternatively squash datasets together to create a child version
https://clear.ml/docs/latest/docs/clearml_data/clearml_data_sdk#datasetsquash

We are currently creating detailed examples on the open source datasets. They should be available soon 🙂