For the upcoming release, regarding the GCP support:

Currently, the `GCP_NETWORK` parameter requires an auto-mode network for the peerpods.

Using a custom network would require specifying a subnet, which is not supported at this time.

We need to write a small note to the docs that exposes to the users this limitation, stating that only auto networks are supported currently.

Something like this:

```
Note: Currently, only auto-mode networks are supported for GCP_NETWORK. Custom networks are not supported at this time but will be supported in future releases.
```

We will be working on supporting subnetworks, and probably will not be available in time for the release. Once this is implemented, we don't need that note anymore.