Updating version strings today, so here’s my official guide to acceptable version numbers:

❌ 0.1
❌ 1
❌ 1.0.0
✅ 1.0b1
✅ 1.0
✅ 1.0.1
❌ 2
✅ 2.0
✅ 2.0.1
✅ 2.1
✅ 2.1.1
❌ 2.1.10
❌ 2.123
❌ 2026.1.2
❌ 2026.123456789

I’ve been versioning apps like this for 30 years. It’s just how it is. 🙂