There are plenty of issues which are assigned a version called '2.0' OR '2.0..'.
The latter one is a typo I think. And for the former one, I think we should claim again that the first release for 2.x release line is 2.0.0, not 2.0. So do not use 2.0 anymore. We committers should be careful when opening issues or resolving issues. Thanks.
