Is polymer okay to deprecate (warning messages in console) Shadow DOM v0?

If deprecating v0 is fine to polymer, that would be a good news to me. :)
I am happy to start to deprecate Shadow DOM v0.

Perhaps once Polymer 2.0 with V1 support is out we can add the deprecation warning.

cc Taylor

That said, regardless of Polymer, I think we should encourage folks to start using the new API now that it's in Chrome. This will also be a forcing function for Polymer adoption and will help drive awareness that there's a new API :)

We did this for /deep/ and ::shadow before Polymer removed usage of it.

Thanks. I thought that I would start to deprecate Shadow DOM v0 sometime in the next year, however, I am feeling that it might be okay to do some actions to deprecate Shadow DOM v0 in this quarter. Sooner might be better, as you said.

Let me add this item to my TODO items of this quarter.

Merging to shadow dom v0 deprecation effort.