we can make this backwards compatible by checking the version of the node we talk to. Assuming that this feature will be released with `1.1.0`, you can do the following in `readFrom`:

```
if (in.getVersion().onOrAfter(Version.1_1_0)) {
    //read the newly added bits
}
```

and the following in `writeTo`:

```
if (out.getVersion().onOrAfter(Version.1_1_0)) {
    //write the newly added bits
}
```