Now `nupst update` checks current version against latest release before downloading anything. Behavior: - Fetches latest version from Gitea API - Compares with current version - Shows "Already up to date!" if versions match - Only downloads/installs if newer version available Example output when up to date: Checking for updates... Current version: v4.0.8 Latest version: v4.0.8 ✓ Already up to date!