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[platform-dev] Java 21 support for Eclipse 2023-09 (4.29)
  • From: Manoj Nalledathu Palat <manoj.palat@xxxxxxxxxx>
  • Date: Wed, 20 Sep 2023 06:07:07 +0000
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  • Thread-topic: Java 21 support for Eclipse 2023-09 (4.29)

Dear All,


We are pleased to announce the Java 21 support for Eclipse 2023-09 (4.29).


The release notably includes the support of the following standard Java 21 features:


[21] JEP 440: Record Patterns

[21] JEP 441: Pattern Matching for switch


The release can be obtained through one of the following ways:


        1. Java 21 Marketplace entry :

        2. P2 update site :

        3. Additionally, the Java 21 support will be available on 4.29 from an integration build soon [tracked via] - download from


The known issues and the preview features are retargeted to 4.30 timeframe or to the next Java version as appropriate.


I would also like to take this opportunity to thank everyone – the team, contributors, bug reporters, early adopters, and one and all - involved in Java 21 support. Special mention to all who took care of non-Java 21 support related activities to keep the master going forward,  which helped a section of team focus and prioritize the Java 21 support work.


Thanks and Regards,

Manoj N Palat

Eclipse Java Development Tools (JDT)





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