The new Ada 2005 language standard has a supporter in the GNAT Pro 5.03a. The academic and the GNAT GPL 2005 edition from Adacore are also available as a free download from the Libre site. Ada 2005 adds a wide range of new features, including nested-type extensions, limited aggregates, and multiple interface inheritance. The interface support is modeled after Java's interface approach. Use of Object.operation notation provides an object-oriented environment more familiar to C++ and Java programmers. An annual subscription for a five-user team starts at $14,000.