• https://github.com/DataDog/sketches-go/pull/56: Reset the default mapping (NewDefaultMapping() and NewDefaultDDSketch()) to the logarithmic one (as was the case before v1.2.0).
• https://github.com/DataDog/sketches-go/pull/54: Avoid recomputing the bounds of the trackable range at every sketch insertion.
• https://github.com/DataDog/sketches-go/pull/53: Use the most space-efficient encoding format when serializing dense stores.