Fix ClassNotFoundException: io.jenkins.cli.shaded.org.w3c.dom.Node when using JAXB.
JENKINS-67470
Launch only one agent to satisfy cloud agent requests that use label expressions.
JENKINS-67635
Enhancement
Upgrade the XStream library from 1.4.18 to 1.4.19.
Addresses the CVE-2021-43859 security vulnerability when unmarshalling highly recursive collections or maps causing a Denial of Service.
pull 6231, XStream 1.4.19 changelog, XStream CVE-2021-43859