Changelog for 2.426

What's new in 2.426 (2023-10-03)

• Remove outdated Prototype.js library. (issue 70906, pull 7781, blog post)
• Use Java 17 as the default Java version in container images that do not specify a Java version in the container label. (Docker pull request 1724)
• Automate the display of an administrative monitor when approaching Java end of life (EOL) dates. (pull 8526)
• Optimized project deletion. (pull 8528)
• Stop shipping net.sf.kxml:kxml2 because Jenkins no longer depends on it. (pull 8503)
• Reduce high memory usage from XStream2.AssociatedConverterImpl (regression in 2.405). (issue 72067)
• Developer: Added setters for View#filterExecutor and View#filterQueue. Fix missing help sections for view filter executor and queue fields. (pull 8511)
• Developer: introduce FIPS property for JEP-237 (Jenkins Enhancement Proposal 237)