The problem details and RCA logs explicitly mention the software version 2.3.3.7, which is the version after the upgrade. Issues such as provisioning failures point to this specific version as the source of the problem. Additionally, the discussion of CSCwf89617 addressed in 2.3.3.7 and CSCwd49629 further confirms this version is the focus. The workaround applied is also specific to this version.
The software version discussed is 2.3.3.7, which caused provisioning issues post-upgrade.