What comes first beta or alpha?

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Tags

1. #known
2. #second
3. #generally
4. #phase
5. #after
6. #complete
7. #begins
8. #betaware
9. #named
10. #greek
11. #feature
12. #development
13. #likely
14. #following
15. #contain
16. #alphabet
17. #alpha
18. #number
19. #software
20. #stage
21. #unknown
22. #letter