Download the latest version from bitcoincore.org . Verify the PGP signature (critical for security). Install the new binaries without uninstalling the old data directory.
Check Block Sync: Ensure the software has finished downloading the entire blockchain. Your balance will not appear correctly until the node is fully synced. bitcoin core walletdat upd
This creates a new descriptor-based wallet and keeps a backup of the old one as - .legacy.bak . 3. Handling "Very Old" Wallets (Pre-2014) Migrating to Descriptor Wallets - Bitcoin Core - Mintlify Download the latest version from bitcoincore