JDK 21: A Comprehensive Overview of Key Features and Enhancements

Another 6 months has passed, and we have a new version of Java SE. Released on September 19th, version 21 will be a long-term support version distributions of which will have extended support and maintenance for several years. 

In this Tech Talk, we’ll cover the key improvements in the platform across language, libraries and JVM:

• Virtual threads
• String templates
• Sequenced collections
• Record patterns and pattern matching for switch
• Unnamed patterns and variables
• Unnamed classes and instance main methods
• Scoped values and structured concurrency which are still preview features

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