Fairly well tested, and has been mostly stable for some time. Recent bug-fixes have been either minor or to quite obscure/experimental features.
R1.2.25
Adds support for various directed swarm options, and fixes some long-standing (and obscure) bugs in alpha conversion and other features.
R1.2.21
Initial github release; usually released via pip
First version with working exhaustive check, decent tests and CI, consistent naming of tests