Documentation Type

Update Existing Documentation

What needs documentation?

Our current documentation on migration does not explain that keys from the old SDK structures need to be removed after migrating

https://docs.near.org/tutorials/examples/update-contract-migrate-state

Otherwise, the old keys will simply stay behind being orphan, still occupying space

Acceptance Criteria

• Update examples to remove old keys
• Updates docs explaining why this is necessary
• Adjust the code if necessary (e.g. to use constants for prefixes)

Resources & References

https://docs.near.org/tutorials/examples/update-contract-migrate-state