Kotlin 2.0 and beyond
summary
Kotlin 2.0, released May 2024, delivers a rewritten front end codenamed K2 front-end with a new frontend IR (FIR) and a revamped control‑flow engine; the rewrite takes five years and targets correctness and much faster compilation (benchmarks report significant speedups on real projects). The compiler now expands smartcasts, fixes desugaring edge cases, and enables more precise analyses. Roadmap items to watch: guarded conditions, context parameters, union‑for‑error types, name‑based destructuring and contracts, plus improved type‑safe builders and incremental 2.1/2.2 rollouts.
AI-written summary · about
chapters (5)
- 0:00Introduction and Kotlin history
- 12:37Kotlin 2.0 compiler rewrite
- 27:23Future Kotlin features
- 36:06Type-safe builders and DSLs
- 47:19Summary and Q&A
