[Jython-dev] JDK 16 is in Rampdown Phase One

[Rory O'D. <ror...@or...>]

Hi All,

*Per the JDK 16 schedule , we are in Rampdown Phase One* *[1] .
*

*Please advise if you find any issues while testing the latest Early 
Access builds.*

  * Schedule for JDK 16
      o *2020/12/10 Rampdown Phase One*
      o 2021/01/14  Rampdown Phase Two
      o 2021/02/04  Initial Release Candidate
      o 2021/02/18  Final Release Candidate
      o 2021/03/16  General Availability
  * Release Notes [2]

OpenJDK 16 Early Access build 28**is now available at 
http://jdk.java.net/16

  * Features - the overall feature set is frozen. No further JEPs will
    be targeted to this release.
  * Significant Integrations in b28:
      o *Integrated JEP 396: **Strongly Encapsulate JDK Internals by
        Default <https://openjdk.java.net/jeps/396>**
        *
          + Strongly encapsulate all internal elements of the JDK by
            default, except for critical internal APIs
            <https://openjdk.java.net/jeps/260#Description> such as
            |sun.misc.Unsafe|.
          + Allow end users to choose the relaxed strong encapsulation
            that has been the default since JDK 9.
      o Integrated JEP 397: Sealed Classes (Second Preview)
        <https://openjdk.java.net/jeps/397> with this release.
          + Enhance the Java programming language with sealed classes
            and interfaces
            <https://cr.openjdk.java.net/~briangoetz/amber/datum.html>.
          + Refines JEP 360 <https://openjdk.java.net/jeps/360> which
            was delivered in JDK 15 as a preview feature.

  * These early-access , open-source builds are provided under the GNU
    General Public License, version 2, with the Classpath Exception
    <http://openjdk.java.net/legal/gplv2+ce.html>.
  * Changes in recent builds that maybe of interest:
      o Build 28
          + JDK-8256299: JEP 396: Strongly Encapsulate JDK Internals by
            Default
          + JDK-8166596: TLS support for the EdDSA signature algorithm
          + JDK-8256718: Old tracing flags are now obsolete and must be
            replaced with unified logging
      o Build 27
          + JDK-8159746: (proxy) Support for default methods
          + JDK-8254631: Better support ALPN byte wire values in SunJSSE

Project Loom Early-Access: *Build 16-loom+9-316 
<http://jdk.java.net/loom/>* (2020/11/30) - based on JDK-16+25 
<https://github.com/openjdk/jdk/releases/tag/jdk-16%2B25>

  * These early-access builds are provided under the GNU General Public
    License, version 2, with the Classpath Exception
    <http://openjdk.java.net/legal/gplv2+ce.html>
  * These builds are intended for developers looking to "kick the tyres"
    and provide feedback on using the API or by sending bug reports.
  * Please send feedback via e-mail to loo...@op...
    <mailto:loo...@op...>. To send e-mail to this address
    you must first subscribe to the mailing list
    <http://mail.openjdk.java.net/mailman/listinfo/loom-dev>.

Rgds, Rory

[1] 
https://mail.openjdk.java.net/pipermail/jdk-dev/2020-December/004991.html
[2] https://jdk.java.net/16/release-notes