From Spot 2.0 to Spot 2.10: What's New?

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Alexandre Duret-Lutz, Etienne Renault, Maximilien Colange, Florian Renkin, Alexandre Gbaguidi Aisse, Philipp Schlehuber-Caissier, Thomas Medioni, Antoine Martin, Jérôme Dubois, Clément Gillard, Henrich Lauko

Published: 2022, Last Modified: 15 Nov 2025CoRR 2022EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Spot is a C ++ 17 library for LTL and $ω$-automata manipulation, with command-line utilities, and Python bindings. This paper summarizes its evolution over the past six years, since the release of Spot 2.0, which was the first version to support $ω$-automata with arbitrary acceptance conditions, and the last version presented at a conference. Since then, Spot has been extended with several features such as acceptance transformations, alternating automata, games, LTL synthesis, and more. We also shed some lights on the data-structure used to store automata.