What is the Firebird Database?
The original Firebird 1.0 release was basically the InterBase® 6.0 engine released by Borland with a lot of bug fixes and some improvements. This was then followed by a major release of Firebird 1.5 in October 2003 which added significant new functionality to the database engine. Work is now progressing on releasing Firebird 2.0. The InterBase source code was originally released by Borland under the InterBase Public Licence, a variant of Mozilla Public Licence (MPL).