We’ve just released system firmware v0.3.2 for the Duo. Please check the release here:
And make sure you’ve read through the release note.
You can also obtain the system firmware v0.3.2 and new WiFi firmware from here:
The Arduino board package v0.3.2 for the Duo is also available for update.
The Web IDE to support v0.3.2 firmware will be available soon and I will update this post once it is available.