Jenkins - jenkins-2.348

This is an automatically generated changelog draft for Jenkins weekly releases.
See https://www.jenkins.io/changelog/ for the official changelogs.

📢 Java 8 end of life June 21 2022 in weekly release line

See Java 11 upgrade guide if you haven't upgraded yet.

The long term support (LTS) line will support Java 8 till September 2022

• Update date for dropping Java 8 support in weekly line (#6566) @timja

🚨 Removed

• JENKINS-51820 - Removing Java Web Start support (#6543) @jglick
• Revert JENKINS-20679 - (support for plugin Java requirement metadata) (#6549) @basil

🚀 New features and improvements

• Use URLClassLoader by default (#6571) @basil
• Upgrade Spring Framework from 5.3.19 to 5.3.20 (#6565) @dependabot
• Suppress more stack traces from DefaultJnlpSlaveReceiver.channelClosed (#6555) @jglick
• JENKINS-68200 - Winstone 5.25 - Bump Jetty from 9.4.45.v20220203 to 9.4.46.v20220331 (#6558) @MarkEWaite
• JENKINS-68381 - allow to set id and style for l:icon with symbols (#6532) @mawinter69

🐛 Bug fixes

• JENKINS-68430 - Underlined space in build executor status view (#6554) @Langer0416
• JENKINS-68296 - Restore actions icon lookup with size (#6556) @alecharp

👷 Changes for plugin developers

• Add color override classes (#6538) @janfaracik
• JENKINS-68200 - Winstone 5.25 - Bump Jetty from 9.4.45.v20220203 to 9.4.46.v20220331 (#6558) @MarkEWaite
• Revert JENKINS-20679 - (support for plugin Java requirement metadata) (#6549) @basil
• JENKINS-68381 - allow to set id and style for l:icon with symbols (#6532) @mawinter69

📦 Dependency updates

• Upgrade Spring Framework from 5.3.19 to 5.3.20 (#6565) @dependabot

All contributors: @Langer0416, @MarkEWaite, @alecharp, @basil, @dependabot, @dependabot[bot], @janfaracik, @jenkins-release-bot, @jglick, @mawinter69 and @timja