# Apply V412 delta to V411 fullroot

Base package:

`NEXT11_V411_LATERAL_LUNGES_CORRECT_START_SIDE_CENTERED_DISPLAY_FULL_ROOT_LIBRARY_READY.zip`

1. Verify and unpack the V411 fullroot.
2. From inside the unpacked V411 root, extract the V412 delta with overwrite enabled.
3. Run:

```bash
node tools/nexprod/build_v412_continuous_travel_camera_follow.mjs .
node tools/nexprod/check_v412_continuous_travel_camera_follow.mjs .
```

Expected result: `pass: true`, zero motion/camera seam jump and zero live solver calls.

The delta contains every new or changed V412 file. It does not remove files from V411.