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[eclipse-dev] Java 17 support for Eclipse 2021-09 (4.21).

Dear All,
We are pleased to announce the Java 17 support for Eclipse 2021-09 (4.21).
The release notably includes the support of the following Java 17 features:
JEP 306: Restore Always-Strict Floating-Point Semantics
JEP 406: Pattern Matching for switch (Preview)
JEP 409: Sealed Classes (Final).
The release can be obtained through one of the following ways:

Additionally, the Java 17 support is available on 4.22 from the next integration build onwards - download from

I would also like to take this opportunity to thank everyone involved in Java 17 Support - more so especially in these pandemic times - for the hard work and the perseverance!
Manoj N Palat
Eclipse Java Development Tools (JDT)

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