	Attempts to support both Linux and Windows for cross-platform development were made, and a cross-platform alternative to the VCL known as CLX shipped in 2001 with the release of Delphi 6. This was the second product in Borland's series of Linux-compatible native developer tools, establishing code-compatible IDEs for both Linux (see Kylix above) and Windows (Delphi 6) using the shared CLX component framework for both. Later efforts would include CLX in C++Builder 6 and add C++ code-compatibility to the RAD tools line. Delphi 6 included the same CLX version (CLX 1) as the first version of Kylix. CLX 1 had been created before Delphi 6; its feature set was based on VCL 5 and lacked some features added to the VCL 6 shipped with Delphi 6.