OpenJDK 17 Early Access build 23 is now available at https://jdk.java.net/17
* These early-access , open-source builds are provided under the
* 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:
* JEP 356: Enhanced Pseudo-Random Number
Generators<https://openjdk.java.net/jeps/356>
* JEP 382: New macOS Rendering
Pipeline<https://openjdk.java.net/jeps/382>
* JEP 391: macOS/AArch64 Port<https://openjdk.java.net/jeps/391>
* JEP 398: Deprecate the Applet API for
Removal<https://openjdk.java.net/jeps/398>
* JEP 409: Sealed Classes<https://openjdk.java.net/jeps/409>
* JEP 410: Remove the Experimental AOT and JIT
Compiler<https://openjdk.java.net/jeps/410>
* JEP 412: Foreign Function & Memory API
(Incubator)<https://openjdk.java.net/jeps/412>
* JEP 414: Vector API (Second
Incubator)<https://openjdk.java.net/jeps/414>
* Release Notes are available at https://jdk.java.net/17/release-notes
* Changes in recent builds that maybe of interest:
* Build 23
* JDK-8243287: Removal of Unsafe::defineAnonymousClass.
* Build 22
* JDK-8266369: New implementation of java.nio.channels.Selector on
Microsoft Windows.
* 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-...@openjdk.java.net<mailto:loom-...@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-...@openjdk.java.net<mailto:panama-...@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>.
Regards
Deepak
[1] https://mail.openjdk.java.net/pipermail/nio-dev/2021-May/008988.html
[2] https://bugs.openjdk.java.net/browse/JDK-8266369
