We have released new firmware files for Argon and Ioni today. Also Granity has been updated.
Argon V2.0.0 beta 4
All reported bugs have been addressed. Beta 4 is a release candidate and it will become official 2.0 if no further problems are found. Once tested, please send feedback about it (email or comment here, also please tell which control mode you are using: torque, velocity or position). Or give vote on the poll on the right sidebar. Get the firmware from here.
This update includes lots of changes since the last release. For full change log and downloads, see this wiki page. Feedback is very welcome.