AgentUpgradeUtil is unable to verify successful agent upgrades.SummaryAgentUpgradeUtil is unable to verify successful agent upgrades due the processFetchedUpgradeLog function unable to locate %TEMP%\\ACC_Logs\\ACC_Upgrade.log Steps to Reproduce: 1. Install accf rc2 build 2. Set sn_agent.dev_mode to false and sn_agent.agent_version to 2.103. Install agent and let it connect to instance and collect host data4. Set sn_agent.dev_mode to true and sn_agent.agent_snapshot_version to 2.115. Click upgrade agent UI action on agent record6. Verify agent upgrade history logs show that agent upgrade failed7.1. Wait a couple minutes and verify that the upgraded agent is no longer marked 2.10, but now is marked as a 2.11 agent and that data collection is working and the agent behaves as if there was no fail in the upgrade, 7.2. Verify that running "acc version" on the agent host from the folder C:\Program Files\ServiceNow\agent-client-collector\bin indicated agent is indeed 2.117.3. Verify that the agent upgrade input ecc queue record indicates that read-file.rbcould not find the upgrade logsInstructionsAgentUpgradeUtil script include checks a path "%TEMP%\\ACC_Logs\\ACC_Upgrade.log" to verify the success of the installation. However, if this file does not exist on the client, then this accounts for the upgrade history reporting the upgrade failed. Agent is able to perform selective upgrade from the instance. When upgrading using the instance UI action "upgrade agent" on the sn_agent_cmdb_ci_agent record it will take the user to a log table that details the status of the agent upgrade. This occurs when the instance is unable to fetch the agent upgrade logs. The instance then marks the agent upgrade stage as failed, and since there are no upgrade logs to fetch, the instance does not add any description of why the upgrade failed. There is a disconnect between the agent behavior and the upgrade logs. We have the fix for the issue on PRB1608630 present on the version : "SR - ITOM - Agent Client Collector Framework - 202305". Ask customer to install the latest ACC framework plugin and validate if the issue is reoccuring.