Release overview
Java 17
LTS with modern language features solidifying (records, sealed classes).
Sealed classesLTS baseline
All About Java 17
Java 17 • 2021 • LTS
Sealed classesLTS baseline
All About Java 17
LTS with modern language features solidifying (records, sealed classes).
Outline page
Known context
Java 17 (2021, LTS)
- Sealed classes constrain inheritance for better modeling.
Research prompts
- What source-language changes became visible to developers in 2021?
- Which standard-library or tooling shifts made this release historically relevant?
- How did this release change the path toward later milestones such as Java 5, Java 8, Java 11, or Java 17?
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