Wine Staging 2.19 has been officially announced today, although it seems like a quieter release compared to the past releases.
Here's whats new:
- Support for depth bias clamping in d3d11.
- Support for verifying RSA signatures using bcrypt.
- Various bug fixes and improvements.
They don't note anything else, apart from the stuff pulled in from the main Wine development builds.
It's likely some of the main contributors had a little break, or some other features are taking longer. I wouldn't be surprised if they had a little break, as they've been knocking out code fast and Wine has come along incredibly in the last year.