Hi @jmyntrn, thanks for the message!
This is likely relating to Cart and Checkout blocks.
If you aren’t using these on your store, then you’re all good and nothing to be done.
If you are, that’s also fine too. We’re actually about 98% compatible with them already. We’re just fixing up one or two things before we remove the incompatibility declaration.
Feel free to give them a go if you’re working on a staging site and want to see how Woo is progressing. We’ll have that notice gone in the next release most likely.