The development is still ongoing, however most features were implemented and the plugin is already usable. It might still be unstable and requires more testing.

IMPORTANT NOTE: The Tox library is currently in a pre-alpha state, that means 'work in progress’ and that also means that your conversatins may not yet be absolutely secure. Use the plugin for testing purposes only.

Current status:
The plugin is almost feature complete for now, so focus will be on testing and stability. When new features are added to the Tox library, I will surely add support for them in the plugin.
One of the currently missing features are group chats.