No, the ODBC driver on Linux is not an open source product.
Does the ODBC driver on Linux mean that a future version of SQL Server will run on Linux?
There are no plans to support SQL Server on Linux.
Why must users build the UnixODBC Driver Manager?
The UnixODBC Driver Manager package that ships with most Linux distributions is not compatible with this release of the Microsoft ODBC Driver for SQL Server. For information on how to install version 2.3.0 of the unixODBC Driver Manager, see Installing the Driver Manager.
What are the differences between the MicrosoftSQL Server ODBC Driver 1.0 for Linux and the Microsoft ODBC Driver 11 for SQL Server? Are they the same product?
The Microsoft ODBC Driver 11 for SQL Server is the new name for the driver for Linux and Windows. If you are using the Microsoft SQL Server ODBC Driver 1.0 for Linux, you should upgrade to the Microsoft ODBC Driver 11 for SQL Server.