However, part merges fail and select from "system.parts" is broken (unless I exclude table from system.parts select). Does it reproduce on the most recent release?

DBeaver also supports SQL Server extensions such as Azure SQL Server, Babelfish via TDS and Google Cloud Platform SQL Server. You must select the appropriate driver in the Connect to a database window ...

Microsoft’s July 2025 Patch Tuesday update resolves 130 vulnerabilities, including critical RCE and SQL Server flaws.