Keynote – Matz

on YouTube ↗35m

" summary

Announces release Dec 25 2020 and promises near-full compatibility with Ruby 2.x while fixing a few bug-edge cases; targets performance improvements including a 3x faster goal versus Ruby 2.0 via JIT evolution and garbage-collector/memory work; introduces concurrency changes: asynchronous IO via a fiber scheduler for multiplexing and Ractor for parallelism with immutable-data messaging to use multiple cores; adds RBS signature files plus TypeProf to generate signatures and find type errors, and small syntax tweaks like numbered parameters and improved pattern matching.

AI-written summary · about

" chapters (46)

1. 0:00Intro
2. 0:34Corona Outbreak
3. 3:09Compatibility to 2.x
4. 3:28Compatibility Matters
5. 4:02Encoding (Unicode Support)
6. 6:43Everyone wants Better Languages
7. 6:54Language Designers Make Mistakes
8. 7:35Programmers Love New Things
9. 8:30Contradiction
10. 8:48Except for a few Bug Fixes
11. 9:41Ruby1.9 Tragedy
12. 10:04Python3 Problem
13. 10:25What's the Difference?
14. 11:12Performance Matters
15. 11:31Everyone Loves Shopify
16. 13:17Just-In-Time Compiler
17. 14:06We are improving
18. 15:35Buy New Computer, Your Software Run Faster
19. 15:53Single Core Performance Saturation
20. 16:05Dual Core, Octa Core, 64 Core
21. 16:15Use More Cores, Your Software Run Faster
22. 16:32Thread-safe Runtime is Hard
23. 19:23You need to specify a Scheduler
24. 19:44Async Fiber does not use Multi-Core
25. 19:54For CPU Intensive Tasks
26. 20:27Limited Sharing
27. 22:08Utilize Multi-Cores
28. 22:31Error/Bug Finding
29. 22:56Everyone Goes Static Typing
30. 23:24Static Type Checks
31. 23:38TypeScript d.ts Counterpart
32. 24:16Better Code Completion
33. 24:37Naive Type Checks
34. 25:21Abstract Interpretation
35. 25:44New Syntax
36. 26:17One-line Pattern Matching
37. 28:27Need Improvement
38. 28:58Supporting Tools
39. 29:10Better Tools Enables Better UX
40. 29:25Type Checker • Formatter • Language Server Protocol • Performance Tuning
41. 30:01Multi-Layer JIT
42. 31:48Static Ruby
43. 32:18Add a few Sprinkle
44. 33:03e.g. Method Redefinition
45. 33:22Static Interpretation
46. 34:50We Will Keep Moving Forward

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