Odaily News Casey, founder of Ordinals, posted on the X platform that ord 0.21.3 has been released, including the following major updates: 1. Users can add metadata when burning inscriptions. This is unstructured, human-readable metadata that is displayed on the page where the inscription is burned; 2. Add a new command "ord wallet split" to perform arbitrary asset splits; 3. Add a new command "ord wallet sign" to allow messages to be signed using addresses in the wallet.