This is a completely new version of not only the Wallet, but of the Blockchain as well. The old wallets and associated data will no longer be used and you should delete any of those old versions along with any associated blockchain data. You should have already moved all your BITCORN into the Twitch wallet in preparation for this migration.
Once you have your new wallet installed, try sending small amounts of BITCORN from your Twitch Wallet. This is done by using the $withdraw command in a whisper to @BITCORNhub on Twitch. When you have confirmed the first test transactions have made it, you can then safely move all your BITCORN from Twitch into the new wallet.
You will need to have the new wallet downloaded and installed before setting up your first new BITCORN masternode. The process is slightly more technical that the older versions, however, the setup time is much faster. For example, setting up 8 new Masternodes can be completed in under 10 minutes. There is no longer a separate guide for setting up multiple nodes as it is directly integrated into the normal setup process. Please follow the link above or click on the thumbnail to the left to be taken to the Masternode Setup Guide.
Masternode users will need to create a new VPS (Virtual Private Server) for your new nodes. Under no circumstances should you try to re-use an existing VPS you may have had from the old version of BITCORN. You can use VULTR, Digital Ocean, or any other equivalent VPS provider. Our guide will detail the process for VULTR specifically, so keep in mind there could be variations in the setup if you are using something different. Also note, you will no longer be using IPV6 addresses like before. New nodes are IPv4 only, and will simply use multiple ports if you have multiple nodes. Please follow the link above or click on the thumbnail to the right to be taken to the VPS Deployment Guide.