Promote Coroutine extensions from experimental to proper API

[mp911de]

With Lettuce 6, we introduced a Coroutine API based on our reactive API and flagged it experimental to indicate the likelihood of change.

After almost three releases, we have now the confidence to promote it to a proper API and remove the experimental flag.

To remove the experimental flag, we will unmark the API as an experimental opt-in and deprecate the annotation for removal.

[guser9822]

Hello, any update regarding this? Actually more interested if there're blockers, I would love to use this feature for applications in production.

[tishun]

Hello, any update regarding this? Actually more interested if there're blockers, I would love to use this feature for applications in production.

Hey @guser9822 ,

as you see from @mp911de comment the feature has reached maturity and we plan to promote it for production usage.
So you should not have issues to use it even now, but you'd have to use the opt-in flag.

We were planning to promote it in 7.x, but we can move the schedule forward if there is interest from the community.