https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0853105
Revert to Base fails for sys_upgrade_history_log record - Support and Troubleshooting - Now Support...
When you try to use the Revert to Base UI action on a sys_upgrade_history_log record, the platform may display the following error message (as an example):...
support and troubleshootingupgrade historyrevertbasefails
https://cardano.org/de/hardforks/
Cardano Hard Forks, Network Upgrade History | Cardano
A complete timeline of Cardano hard forks from Byron to Chang. Explore each network upgrade, what changed, and how the protocol has evolved.
network upgradecardanohardforkshistory