The 1.18 release is scheduled for 6/8. That is a little over two weeks from now.
And the state of the release is super not good.
Here are the outstanding bugs: https://github.com/rust-lang/rust/issues?q=is%3Aopen+is%3Aissue+label%3Aregression-from-stable-to-beta
There are 10 of them.
And cargobomb against 1.18.0-beta.2: http://cargobomb-reports.s3-website-us-west-1.amazonaws.com/beta-2017-05-12/index.html
The vast majority of regressions are these three:
These all are thought to have fixes, but not landed.
We can’t release in this state, so please if you have the ability and capacity to tackle these problems, do so.