Versions 30.0 and 30.1 contained a bug in the wallet migration logic that could completely delete your wallet files
If you are looking to update your Bitcoin Core software or migrate your wallet.dat file to a newer version, understanding the process is essential to prevent permanent loss of funds. Backup Your Wallet Before Moving Anything bitcoin core walletdat upd
If you are using Bitcoin Core 0.17 or later and have a non‑HD wallet, you can use the -upgradewallet option to upgrade it to an HD (hierarchical deterministic) wallet. This option automatically generates a new seed and keypool while retaining all old private keys and transactions. Versions 30
This is the safest method for users uncomfortable with command lines. This is the safest method for users uncomfortable
Keeping your Bitcoin Core wallet updated ensures you have access to the latest privacy features and fee-estimation algorithms. By following proper backup protocols, you can navigate these technical transitions without risking your digital assets.