What do the Upgrade History [sys_upgrade_history_log] Change Type [change_type] values mean?SummaryChange_type is meant to capture the code changes in the skipped records. Script/Html/XML field value changes in records are considered code changes. Change_type break down of skips can help customers to prioritize the skips to review. Skips with code changes are more important to review than the ones with non-code element changes.Changes are tracked with respect to the new OOB base version against the current base version. This way, we are able to indicate that the new base version has some changes (fixes or enhancements) and it is time to review the changes over the customized file and decide to take it or merge the changes or keep the customized version.