What's Changed

• Backport #4761 to v9.X by @StefanOssendorf in #4771
• #4779 Add Snapshot TransactionIsolationLevel by @xal1983 in #4782
• Fix issue with editlevel and clone by @rockfordlhotka in #4796
• Version 9.1.1 release by @rockfordlhotka in #4803

Full Changelog: v9.1.0...v9.1.1