It would be great to get more features out incrementally. For experimental features, do we have more relaxed constraints?

On Thu, Sep 6, 2018 at 9:47 AM Reynold Xin <> wrote:
+1 on 3.0

Dsv2 stable can still evolve in across major releases. DataFrame, Dataset, dsv1 and a lot of other major features all were developed throughout the 1.x and 2.x lines.

I do want to explore ways for us to get dsv2 incremental changes out there more frequently, to get feedback. Maybe that means we apply additive changes to 2.4.x; maybe that means making another 2.5 release sooner. I will start a separate thread about it.

On Thu, Sep 6, 2018 at 9:31 AM Sean Owen <> wrote:
I think this doesn't necessarily mean 3.0 is coming soon (thoughts on timing? 6 months?) but simply next. Do you mean you'd prefer that change to happen before 3.x? if it's a significant change, seems reasonable for a major version bump rather than minor. Is the concern that tying it to 3.0 means you have to take a major version update to get it?

I generally support moving on to 3.x so we can also jettison a lot of older dependencies, code, fix some long standing issues, etc.

(BTW Scala 2.12 support, mentioned in the OP, will go in for 2.4)

On Thu, Sep 6, 2018 at 9:10 AM Ryan Blue <> wrote:
My concern is that the v2 data source API is still evolving and not very close to stable. I had hoped to have stabilized the API and behaviors for a 3.0 release. But we could also wait on that for a 4.0 release, depending on when we think that will be.

Unless there is a pressing need to move to 3.0 for some other area, I think it would be better for the v2 sources to have a 2.5 release.

On Thu, Sep 6, 2018 at 8:59 AM Xiao Li <> wrote:
Yesterday, the 2.4 branch was created. Based on the above discussion, I think we can bump the master branch to 3.0.0-SNAPSHOT. Any concern?

Ryan Blue
Software Engineer