No. Blocks will not be downloaded again on upgrades from 0.8.4 to 0.8.5.1
so i have to download the setup and install ? or i have to uninstall the last version before i install new version ? can you please tell me step by step thanks mate !
i have to download the setup and install
1. Stop previous version litecoin.
2. Download the setup
3. Run the setup.
4. Press "Next"
5. Press "Next"
6. Press "Install"
7. Press "Next"
8. Press "Finish" (Checkbox "Run Litecoin" can leave it "on" or "off", as you wish)