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The 1.3.6 release is a new version of the org-pipeline-server module only. No dependent libraries have changed and there are no database structure or stored procedure changes.
https://jira.slac.stanford.edu/browse/SSC-268
https://jira.slac.stanford.edu/browse/PII/fixforversion/12140
The release is fully backward compatible. Although the 1.3.6 release involves new features added to the jython-scriptlet and variable-expression-parsing interfaces, all previous features remain available.
The upgrade requires only a simple restart of the pipeline server application.
If problems are discovered in the 1.3.6 release, the current release version (1.3.5) can be restored with a simple restart of the pipeline server application. However, any new tasks using the functionality available in 1.3.6 will fail to execute if a back-out of the new version is performed.