As a heads up. For users of pipelinewise-tap-mssql, there is an issue with the pymssql library. A pull request has been opened to resolve this (which happens to have a number of other enhancements which have been waiting in the wings).
If you need to urgently patch your version of pipelinewise-tap-mssql look at the changes in pyproject.toml file.
As a FYI, here is the fix.