Update - Viber

| Metric | Viber | WhatsApp | Telegram | Signal | |--------|-------|-----------|-----------|--------| | Major updates per year | 3-4 | 2-3 | 8-10 | 4-5 | | Average update size (delta) | 35 MB | 28 MB | 55 MB | 42 MB | | Max supported OS lag | 4 years | 5 years | 3 years | 4 years | | User control over updates | Optional + forced for critical | Optional + forced after 60 days | Fully optional | Fully optional | | Changelog transparency | Medium (high-level) | Low (“bug fixes”) | High (detailed) | High (detailed) |