Update Jenkins to 2.579 - Error initialized jenkins plugin datadog

Jenkins and plugins versions report
Jenkins 2.579 - Plugin datadog v9.2.0

What Operating System are you using (both controller, and any agents involved in the problem)?
Debian 13

Reproduction steps
Update Jenkins to 2.579

Expected Results
Gerrit plugin is correctly initialized

Actual Results
Plugin initialization fails with:
2026-08-31 13:01:34.616+0000 [id=36] SEVERE hudson.util.BootFailure#publish: Failed to initialize Jenkins
io.jenkins.plugins.casc.UnknownAttributesException: unclassified: Invalid configuration elements for type: class jenkins.model.GlobalConfigurationCategory$Unclassified : datadogGlobalConfiguration

Reproduce the failure by updating Jenkins to 2.579 with Datadog plugin v9.2.0 on Debian 13, then trace the datadogGlobalConfiguration initialization reported by Jenkins Configuration as Code. Done means Jenkins starts successfully and the Datadog plugin configuration is accepted without the UnknownAttributesException.

Written by the indexing model from the issue text.