What do I have to do?

Please backup your wallet.dat file and update to the latest Bitcore-core version: https://github.com/LIMXTEC/BitCore/releases and install. Now copy your wallet.dat to your new Bitcore folder. The software automatically updates all your addresses to new public keys...

What does the public key change mean?

Due to potential roadblocks with many hardware and service providers, we have come to the conclusion that it is necessary for us to change the public key prefix. Since we use the same prefix as bitcoin (“1”, “3” and “bc1”), we...