How Symfony 3.0 moves forward without letting anyone behind

Migrating from Symfony 2.3 to the newest Symfony 3.0 won't force you to rewrite all your application. Instead, you'll follow a well documented and continuous upgrade path to make a smooth transition. How is this possible? In this session, I'll tell you how the BC promise enables easy migrations. I'll also tell you about the creation of the new deprecation policy introduced in Symfony 2.7. These are the two corner stones that allow Symfony to do the split: having a wide range of stable apps and innovating at the same time.

Transcript

1. Symfony 3.0 does the split! #SymfonyCon @nicolasgrekas joind.in/16479
2. components framework + =
3. One monolithic repo. + 46 synchronized components =
4. #SymfonyCon @nicolasgrekas joind.in/16479 Symfony Lifecycle Release end of support +8 months +14 months +36 months +48 months end of security support end of security support end of support Standard Releases (2.4, 2.5, 2.6, 3.0) LTS Releases (2.3, 2.7, 2.8)
5. Backward Compatibility Promise
6. #SymfonyCon @nicolasgrekas joind.in/16479 3. @internal @api The Backward Compatibility Promise http://symfony.com/bc
7. #SymfonyCon @nicolasgrekas joind.in/16479 Major Minor Patch
8. #SymfonyCon @nicolasgrekas joind.in/16479 • o • o • o Semantic Versioning
9. What’s new in Symfony 3?
10. Well... Nothing!
11. #SymfonyCon @nicolasgrekas joind.in/16479 The Symfony 3.0 Architecture • • • • •
12. #SymfonyCon @nicolasgrekas joind.in/16479 The Symfony 3.0 Architecture
13. #SymfonyCon @nicolasgrekas joind.in/16479 All new features are already included in Symfony 2.8 What’s new in Symfony 3?
14. What’s new in Symfony 2.8?
15. #SymfonyCon @nicolasgrekas joind.in/16479 500 new features since 2.3
16. #SymfonyCon @nicolasgrekas joind.in/16479 100+ new features since 2.7 • • • • • • • • • • • • • • • • •
17. What’s new in Symfony 3?
18. The Continuous Upgrade Path
19. #SymfonyCon @nicolasgrekas joind.in/16479 The Symfony Core Team Wish!
20. #SymfonyCon @nicolasgrekas joind.in/16479 Continuous Migration Path Before 2.7 • • • • • • • 
21. #SymfonyCon @nicolasgrekas joind.in/16479 Continuous Migration Path Since 2.7 • • • • • • •
22. #SymfonyCon @nicolasgrekas joind.in/16479 Trigger deprecation notices at run-time
23. #SymfonyCon @nicolasgrekas joind.in/16479 Trigger deprecation notices at run-time
24. #SymfonyCon @nicolasgrekas joind.in/16479 Trigger deprecation notices at run-time
25. #SymfonyCon @nicolasgrekas joind.in/16479 Trigger deprecation notices at run-time
26. #SymfonyCon @nicolasgrekas joind.in/16479 Trigger deprecation notices at run-time
27. #SymfonyCon @nicolasgrekas joind.in/16479 Trigger deprecation notices at run-time
28. #SymfonyCon @nicolasgrekas joind.in/16479 Statically-detect deprecated code paths
29. Sustainability of the CUP wish?
30. #SymfonyCon @nicolasgrekas joind.in/16479 Cross Versions Dependencies • o o ~2.x|~3.0.0 • o o ~2.8|~3.0
31. #SymfonyCon @nicolasgrekas joind.in/16479 Prefer Lowest Requirements
32. #SymfonyCon @nicolasgrekas joind.in/16479 The @legacy PHPUnit Group
33. #SymfonyCon @nicolasgrekas joind.in/16479 Travis Matrix
34. #SymfonyCon @nicolasgrekas joind.in/16479 Appveyor for Windows
35. #SymfonyCon @nicolasgrekas joind.in/16479 • • Sustainability of the CUP
36. What about the Symfony ecosystem?
37. #SymfonyCon @nicolasgrekas joind.in/16479 Use the Symfony PHPUnit Bridge
38. #SymfonyCon @nicolasgrekas joind.in/16479 Use the Symfony PHPUnit Bridge
39. #SymfonyCon @nicolasgrekas joind.in/16479 Allow Symfony ~3.0 Dependencies
40. #SymfonyCon @nicolasgrekas joind.in/16479 Their turn to deprecate
41. #SymfonyCon @nicolasgrekas joind.in/16479 Their turn to deprecate
42. Now your turn!
43. #SymfonyCon @nicolasgrekas joind.in/16479 • • • • o o o • • Some guidelines
44. #SymfonyCon @nicolasgrekas joind.in/16479 Use the Symfony PHPUnit Bridge * Since 2.8.1. The regexp is checked against the deprecation message.
45. #SymfonyCon @nicolasgrekas joind.in/16479 Some guidelines
46. #SymfonyCon @nicolasgrekas joind.in/16479 Some guidelines
47. What’s new in Symfony 3?
48. #SymfonyCon @nicolasgrekas joind.in/16479 @trigger_error(…, E_USER_DEPRECATED); • • • •
49. Let’s Keep Innovating!
50. Merci ! #SymfonyCon @nicolasgrekas joind.in/16479
51. #SymfonyCon @nicolasgrekas joind.in/16479 Some guidelines
52. #SymfonyCon @nicolasgrekas joind.in/16479 Some guidelines
53. #SymfonyCon @nicolasgrekas joind.in/16479 Some guidelines
54. #SymfonyCon @nicolasgrekas joind.in/16479 Some guidelines
55. #SymfonyCon @nicolasgrekas joind.in/16479 Some guidelines