About the Data Providers

The PSQL data providers are compliant with the Microsoft .NET Framework 2.0, 3.0, 3.5, 3.5 SP1, 4.0, 4.5, 4.5.1 and 4.5.2, and 4.6.1 and 4.6.2 Preview. The data providers are built with 100% managed code; they can run and connect to the database entirely within the common language runtime (CLR).

Code that runs in the native operating system, such as client libraries and COM components, is called unmanaged code. You can mix managed and unmanaged code within a single application. However, unmanaged code reaches outside the CLR, which means that it effectively increases complexity, reduces performance, and opens possible security risks.