What does Gutenberg optimized mean?

Related questions

1. What are the roles implemented in Windows Azure?
2. What is the difference between admin and user?
3. How do I make my domain an administrator?
4. What are WordPress user roles?
5. What can domain admins do?
6. What is the difference between Web Role and Worker Role?
7. What is Admin user?
8. What is Gutenberg?
9. What is the difference between standard user and administrator?
10. What are Azure roles?

Tags

1. #gutenberg
2. #update
3. #change
4. #added
5. #release
6. #since
7. #editor
8. #launch
9. #which
10. #perhaps
11. #website
12. #given
13. #november
14. #using
15. #significant
16. #content
17. #years
18. #wordpress