- The latest stable version of Quixote (Python 3 only) is version 3.1 (3.1 sig), released 2019-04-24.
- The version of the 2.x series (Python 2 compatible) is version 2.9.1 (2.9.1 sig), released 2016-04-18.
- The latest version of the 1.x series is Quixote is version 1.3, released 2008-08-21.