Hi David & Richard, ** *OpenJDK 17 Early Access build 23 is now available at *_*https://jdk.java.net/17* <https://jdk.java.net/17>_ * These early-access , open-source builds are provided under the o GNU General Public License, version 2, with the Classpath Exception <https://openjdk.java.net/legal/gplv2+ce.html> * JEPs targeted to JDK 17, so far: o JEP 356: _Enhanced Pseudo-Random Number Generators <https://openjdk.java.net/jeps/356>_ o JEP 382: _New macOS Rendering Pipeline <https://openjdk.java.net/jeps/382>_ o JEP 391: _macOS/AArch64 Port <https://openjdk.java.net/jeps/391>_ o JEP 398: _Deprecate the Applet API for Removal <https://openjdk.java.net/jeps/398>_ o JEP 409: _Sealed Classes <https://openjdk.java.net/jeps/409>_ o JEP 410: _Remove the Experimental AOT and JIT Compiler <https://openjdk.java.net/jeps/410>_ o JEP 412: _Foreign Function & Memory API (Incubator) <https://openjdk.java.net/jeps/412>_ o JEP 414: _Vector API (Second Incubator) <https://openjdk.java.net/jeps/414>_ * Release Notes are available at _https://jdk.java.net/17/release-notes <https://jdk.java.net/17/release-notes>_ * Changes in recent builds that maybe of interest: o Build 23 + JDK-8243287: Removal of Unsafe::defineAnonymousClass. o Build 22 + *JDK-8266369: New implementation of java.nio.channels.Selector on Microsoft Windows. * o Build 21 + *JDK-8196415: JARs signed with SHA-1 algorithms are restricted by default.* + *JDK-8266858: macOS on ARM early access available.* # The ARM port should behave similarly to the Intel port. There are no known feature differences. # When reporting issues on macOS please specify if using ARM or x64. *We need your help in testing new Selector implementation on Windows [1]:* * The implementation of the Selector API on Windows has been replaced in JDK 17 b22 with a new more scalable implementation [2]. * The old select based Selector implementation has been the default since Java 1.4 (2002) so replacing it is a significant change. * It would be really helpful to get more testing of the new implementation before the fork for Rampdown Phase One on June 10th. *Other Topics which might be of Interest:* * Updates to JEP 411: Deprecate the Security Manager for Removal | _Link_ <https://mail.openjdk.java.net/pipermail/jdk-dev/2021-May/005569.html> * "The meaning, or not, of “LTS” | _Link_ <https://mail.openjdk.java.net/pipermail/jdk-dev/2021-May/005543.html> * JFR Remote Recording Stream | _Link_ <https://egahlin.github.io/2021/05/17/remote-recording-stream.html> *Project Loom Early-Access Build: **_Build 17-loom+7-342_* <https://jdk.java.net/loom/>*(2021/5/11)* * These early-access builds are provided under the _GNU General Public License, version 2, with the Classpath Exception_ <https://openjdk.java.net/legal/gplv2+ce.html>;. * These builds are produced for the purpose of gathering feedback. Use for any other purpose is at your own risk. * Please send feedback via e-mail to _loom-dev(a)openjdk.java.net <mailto:loom-dev@openjdk.java.net>_.To send e-mail to this address you must first _subscribe to the mailing list_ <https://mail.openjdk.java.net/mailman/listinfo/loom-dev>;. *Project Panama Early-Access Build: *_*Build 17-panama+3-167* <https://jdk.java.net/panama/>_*(2021/5/18)* * These early-access builds are provided under the _GNU General Public License, version 2, with the Classpath Exception_ <https://openjdk.java.net/legal/gplv2+ce.html>;. * This build is aimed at testing a prototype implementation of the foreign memory support, foreign function support and native extraction tooling from the "foreign-jextract" branch of the Panama repo. * Please send feedback via e-mail to _panama-dev(a)openjdk.java.net <mailto:panama-dev@openjdk.java.net>_. To send e-mail to this address you must first _subscribe to the mailing list_ <https://mail.openjdk.java.net/mailman/listinfo/panama-dev>;. Rgds,Rory [1] _https://mail.openjdk.java.net/pipermail/nio-dev/2021-May/008988.html_ <https://mail.openjdk.java.net/pipermail/nio-dev/2021-May/008988.html> [2] _https://bugs.openjdk.java.net/browse/JDK-8266369_ <https://bugs.openjdk.java.net/browse/JDK-8266369> -- Rgds, Rory O'Donnell Quality Engineering Manager Oracle EMEA, Dublin, Ireland