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On 8/20/2018 1:32 PM, Hongbin Lu wrote:
> * Is placement stable enough so that it won't break us often?

Yes, we use microversions for this reason.

> * If there is a breaking change in placement and we contribute a fix, 
> how fast the fix will be merged?

Eric hedged on this, but I think the answer is yes - if there is a thing 
that breaks you and you let us know it breaks you, we'll give attention 
to the fix, especially regressions. We've done this with Ironic when it 
comes up, and we've done it with other projects that consume not only 
placement but nova in general (trove, triple-o, etc).

> * If there is a feature request from our side and we contribute patches 
> to placement, will the patches be accepted?

As anything it depends on the feature request. API changes require 
deeper review because it's a long-term commitment to supporting that 
API, so they aren't taken lightly. But chances are if you need something 
from placement, someone else likely needs the same thing.

-- 

Thanks,

Matt