It's NOT mandatory. It fixes the wrong money supply the info shows.
This bug was caused by this line:
That line had a double - instead of one, causing to show the wrong supply. Now it is:
FOLLOW THIS STEPS:
1. Download the new wallet.
- Windows: https://mega.co.nz/#!TMRSiQ7S!7Pvtqz9zSJHxtRaQmt0vkYx9pWuL74V9rqqoejV8C8I
- Source: https://github.com/elitecoindevs/elitecoin
2. Go to your EliteCoin folder, BACKUP wallet.dat (just in case).
3. You will need to re-download the chain. Delete everything inside .EliteCoin (except your wallet.dat!!!).
4. Open your new wallet and let it sync. Done! Now it's showing the right amount.