First draft of the November newsletter. (#6930)

* First draft of the November newsletter.

* fix(documentation): Misprint.

* fix(documentation): No outreach section, no key takeaways.

* fix(documentation): Misprints.

* fix(documentation): Misprints.

* some updates to the syntax/text

* Update content/blog/2023/12/15/2023-12-15-jenkins-november-newsletter.adoc

---------

Co-authored-by: Kevin Martens <[email protected]>

content/blog/2023/12/15/2023-12-15-jenkins-november-newsletter.adoc

@@ -0,0 +1,111 @@
+---
+layout: post
+title: "Jenkins November 2023 Newsletter"
+tags:
+- jenkins
+- newsletter
+- community
+- contribute
+authors:
+- dduportal
+- markewaite
+- gounthar
+- kmartens27
+- alyssat
+opengraph:
+  image: /images/post-images/2023/02/07/2023-02-07-jenkins-newsletter/centered-newsletter.png
+links:
+discourse: true
+---
+
+image:/images/post-images/2023/02/07/2023-02-07-jenkins-newsletter/centered-newsletter.png[Jenkins September Newsletter]
+
+== Key Takeaways
+
+* Basil Crow joins the Jenkins Governance Board.
+* A Jenkins Contributor Summit will be held prior to FOSDEM.
+* The link:https://contributors.jenkins.io/[Contributor Spotlight] site is now live.
+
+[[Governance]]
+image:/images/post-images/2023/01/12/jenkins-newsletter/governance.png[Governance Update]
+
+Contributed by: author:markewaite[Mark Waite]
+
+author:basil[Basil Crow] joins the Jenkins governance board in December 2023.
+He’ll serve for a two-year term.
+Thanks to Basil for his willingness to serve.
+More details of the 2023 governance board and officer changes are available in a link:/blog/2023/12/08/basil-crow-board-announcement/[blog post] by author:notmyfault[Alexander Brandes].
+
+link:/changelog-stable/#v2.426.1[Jenkins 2.426.1] was released on November 15, 2023 with many improvements and additions.
+author:darinpope[Darin Pope] and author:markewaite[Mark Waite] reviewed the Jenkins 2.426.1 features in a link:https://www.youtube.com/watch?v=Pkd_ihgctkc&t=12s[50 minute webinar].
+Key items include:
+
+* Java 21 support
+* Java 17 or Java 21 recommended
+* Prototype.js JavaScript library removed
+* Drop support for Red Hat Enterprise Linux 7 and its derivatives like CentOS 7
+
+A link:/blog/2023/11/10/Jenkins-Contributor-Summit-in-Brussels/[Jenkins Contributor Summit] will be held in Brussels, Belgium on Friday, February 2, 2024.
+We’ll gather for a day of presentations, planning, and working on the future of Jenkins.
+Immediately after the Contributor Summit, FOSDEM 2024 will be a two day conference focused on open source.
+author:jmmeessen[Jean-Marc Meessen] is gathering link:https://community.jenkins.io/t/jenkins-contributor-summit-on-feb-2-2024-call-for-topics-and-ideas/10689[agenda topics and attendees] on the community site.
+
+
+[[infrastructure]]
+image:/images/post-images/2023/01/12/jenkins-newsletter/infrastructure.png[Infrastructure Update]
+
+Contributed by: author:dduportal[Damien Duportal]
+
+Microsoft has donated $40,000 USD to the Continuous Delivery Foundation for use in member projects.
+The Jenkins project is pleased to be using those credits to reduce CDF expenses.
+
+The AWS cost reduction project has a working prototype that is using Cloudflare R2 and the Jenkins mirror system to reduce bandwidth costs.
+We plan to complete the Jenkins Enhancement Proposal, a prototype temporary transition, and the production transition by January 31, 2024.
+
+[[modern-ui]]
+image:/images/post-images/2023/01/12/jenkins-newsletter/ui_ux.png[User Experience Update]
+
+Contributed by: author:markewaite[Mark Waite]
+
+Jenkins 2.426.1 provides a new “Appearance” page so that administrators have a single page to configure the Jenkins theme and other user interface details.
+Thanks to author:timja[Tim Jacomb] for the Appearance page.
+
+Jenkins 2.426.1 also updates the Jenkins user experience with confirmation dialogs inside the pages instead of using the web browser’s confirmation dialog.
+Thanks to link:https://github.com/mawinter69[Markus Winter] for the implementation of those dialogs and for the API that allows plugins to do the same.
+
+Keyboard navigation has been improved in Jenkins 2.426.1 as well.
+Users can now access tab panes by keyboard navigation.
+
+[[platform]]
+image:/images/post-images/2023/01/12/jenkins-newsletter/platform-modernization.png[Platform Modernization Update]
+
+Contributed by: author:gounthar[Bruno Verachten]
+
+
+* Java 21 support
+** The https://github.com/jenkinsci/jep/blob/cd176912ed8797ddee1066be59b1a68fb9b6bc77/jep/0000/README.adoc[Jenkins enhancement proposal] by Mark Waite is progressing nicely.
+** Progress of testing the top plugins with Java 21:
+*** 108 of the top plugin repositories passing tests with Java 21.
+*** 20 of the top plugin repositories not yet passing tests with Java 21.
+** The Infrastructure team finished the transition to official 21.0.1+12 Linux (17 on Windows).
+** All agents and controllers now supply a JDK21 or JDK21 preview Docker image.
+* Java 17 is now the default Java version used in the Docker images, even for the LTS and Windows:
+** If you don’t use a tag specifying the JDK version like https://hub.docker.com/layers/jenkins/jenkins/2.429-jdk11/images/sha256-4a0743c391adeaf80716c14a1d2573f150328181c60b83f23eb1504e59f228bb?context=explore[2.429-jdk11], but shorter tags like https://hub.docker.com/layers/jenkins/jenkins/2.429/images/sha256-9036a884d9a8055a99d4e475080150a6d24b611018ccbc73080d492ccf9930d2?context=explore[2.429], you will end up with an image using JDK17 and not JDK11 anymore.
+* OS support:
+** CentOS 7 container images have been https://github.com/jenkinsci/docker/pull/1777[removed], starting from the 2.432 release.
+* ARM64:
+** More services in the infrastructure have migrated to a new ARM64 nodepool.
+
+
+[[documentation]]
+image:/images/post-images/2023/02/07/2023-02-07-jenkins-newsletter/documentation.png[Documentation Update]
+
+Contributed by: author:kmartens27[Kevin Martens]
+
+The link:http://contributors.jenkins.io[Contributor Spotlight] is a new location where we will be highlighting the top contributors to Jenkins.
+We have been gathering and measuring data to determine who would be part of this group, and then reached out to everyone to collaborate and capture their stories.
+Thanks to all of the contributors who have collaborated with us on this project thus far, and all those who we will be working with going forward as well.
+We’ll be publishing new Contributor Spotlights every two weeks, to provide space for the current spotlight to shine and leave room for other announcements or news.
+Thanks to author:alyssat[Alyssa Tong], author:gounthar[Bruno Verachten], author:jmmeessen[Jean-Marc-Meessen], author:krisstern[Kris Stern], author:hlemeur[Hervé Le Meur] and Cristina Pizzagalli for their work in gathering the data, designing the site, getting the site into production, and offering guidance along every step of the way.
+
+November had four blog posts, including the link:/blog/2023/11/10/Jenkins-Contributor-Summit-in-Brussels/[Jenkins Contributor summit at FOSDEM] announcement, the link:/blog/2023/11/06/introducing-2-2-2-java-support-plan/[2+2+2 Jenkins Java support plan], and the announcement of the Contributor Spotlight site.