v18.8.0

• Switch to new code signing certificate — this should get rid of scary warnings when downloading on Windows 10 💸
• Downloads are now more reliable — in particular, retry automatically on idle timeouts (can happen on slow connections / temporary slowdowns with download servers)
• User-friendly version names are shown instead of numeric identifiers (upload display name is used if set, otherwise channel name):

- Various other reliability & performance fixes (for example: ignore errors when can't perform self-update check because we're offline, minimize number of requests to upgrade a game to latest version, etc.)