According to  https://github.com/openshift/jenkins/blob/master/2/contrib/openshift/jenkins-version.txt  Openshift uses 2.401.1

But customer wants to use the updated Jenkins image , due to newly added security advisory.
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following versions between 2.401.1 and 2.424 have 'important security fixes' where several CVEs are said to be fixed per version:
2.424: https://www.jenkins.io/security/advisory/2023-09-20/
2.416: https://www.jenkins.io/security/advisory/2023-07-26/
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Also, Below is what cu get below messages when trying to install jenkins using said automated plugin update, which are dependency errors saying:
Jenkins (2.401.3) or higher required

As for what version it is at, currently for the newest released ocp-tools-4 image,
jenkins version: Jenkins 2.401.1

Given that 2.402 version of jenkins is, according to the link below, already 4 months old, let alone 2.401.1 which assumedly is the version iteration of 2.401 at 5 months old, figured it was overdue for an update. Newest is today, 2.422
https://www.jenkins.io/changelog/
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Customer will face challenges from their security team if they dont get this latest image or plugin.