Fix ClassNotFoundException: io.jenkins.cli.shaded.org.w3c.dom.Node when using JAXB.
(issue 67470)
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)
Launch only one agent to satisfy cloud agent requests that use label expressions.
(issue 67635)