Core upgrade to 2.138.3.1 breaks backups when triggered by a cluster operation

Issue

Any customer that updates to version 2.138.3.1 will be not able to perform a backup using the cluster operation.

Environment

CloudBees CI (CloudBees Core) on Modern Cloud Platforms 2.138.3.1
CloudBees Backup Plugin before 3.38.8

Resolution

Solution

Upgrade CloudBees Backup Plugin to 3.38.8 or later.

Workaround

Perform the backup via CLI command or using The Backup and Restore job the controller.

This article is part of our Knowledge Base and is provided for guidance-based purposes only. The solutions or workarounds described here are not officially supported by CloudBees and may not be applicable in all environments. Use at your own discretion, and test changes in a safe environment before applying them to production systems.