Welcome to OpenJDK (Java) 23 (#57)

OpenJDK (Java) 23 is here! This version introduces three new features to the language and runtime, many bug fixes, small improvements, and a longer list of preview features. What are the most important facts about this release? Let's find out...GuestsSimon Ritterhttps://www.linkedin.com/in/siritter/ https://mastodon.social/@speakjavahttps://twitter.com/speakjava   Artur Skowrońskihttps://www.linkedin.com/in/arturskowronski/https://x.com/ArturSkowronskiContent00:00 Introduction 00:49 What OpenJDK version are we on? Foojay post by Loic Mathieu: https://foojay.io/today/java-23-whats-new/   01:26 Why switch to OpenJDK 23? 02:45 JEP 467: Markdown Documentation Comments https://openjdk.org/jeps/467 04:15 JEP 474: ZGC: Generational Mode by Defaulthttps://openjdk.org/jeps/474 https://www.azul.com/blog/what-should-i-know-about-garbage-collection-as-a-java-developer/ https://newrelic.com/resources/report/2024-state-of-the-java-ecosystem 14:17 JEP 471: Deprecate the Memory-Access Methods in sun.misc.Unsafe for Removal https://openjdk.org/jeps/471 Foojay post by Bazlur Rahman: https://foojay.io/today/unsafe-is-finally-going-away-embracing-safer-memory-access-with-jep-471/   22:04 Preview and incubator features 22:31 JEP 466: Class-File API (Second Preview) https://openjdk.org/jeps/466 25:48 JEP 455: Primitive Types in Patterns, instanceof, and switch (Preview) https://openjdk.org/jeps/455 https://openjdk.org/projects/valhalla 30:52 JEPs leading to cleaner code https://openjdk.org/projects/amber 32:28 JEP 469: Vector API (Eighth Incubator) https://openjdk.org/jeps/469  35:28 JEP 473: Stream Gatherers (Second Preview) https://openjdk.org/jeps/473 38:07 JEP 476: Module Import Declarations (Preview) https://openjdk.org/jeps/476 Overview of projects with modules: https://docs.google.com/spreadsheets/u/2/d/e/2PACX-1vQbHhKXpM1_Vop5X4-WNjq_qkhFRIOp7poAF79T0PAjaQUgfuRFRjSOMvki3AeypL1pYR50Rxj1KzzK/pubhtml   43:03 JEP 477: Implicitly Declared Classes and Instance Main Methods (Third Preview) https://openjdk.org/jeps/477 45:40 JEP 480: Structured Concurrency (Third Preview) https://openjdk.org/jeps/480 46:26 JEP 481: Scoped Values (Third Preview) https://openjdk.org/jeps/481 46:40 JEP 482: Flexible Constructor Bodies (Second Preview) https://openjdk.org/jeps/482 48:56 Removal of String templates https://openjdk.org/jeps/430  (OpenJDK 21): String Templates (Preview) https://openjdk.org/jeps/459  (OpenJDK 22): String Templates (Second Preview) Nice description on the mailing list: https://mail.openjdk.org/pipermail/amber-spec-experts/2024-March/004010.html   53:21 Process of releases 55:25 Predictions for next LTS 25 57:48 License changes for Oracle JDK 17 58:38 About JVM Weekly by Artur (and Scala, AI, LLMs) JVM Weekly Newsletter: https://www.linkedin.com/newsletters/7097859802881540096/ https://webtechie.be/tags/jfx-in-action/   1:06:18 Conclusions