At the moment priority is fully stable V3, but developers are committed to fixing issues in V2,
and ensuring that Octane SDK V2 features are all available and usable.
However, it is unlikely any additional features will be added to V2, unless these are implemented in Octane SDK (eg. pascal support).
But it is also very unlikely that any changes will be made to Octane SDK v2 in the near future.
Win 7 / i7 5930 - 32gb / 1 x quadro K620 / 2 x Evga Titan X Hybrid