0.12.18

New Features

• Add SampleSet.wait_id() as a proxy to the underlying QPU result
  future, when sample set is constructed from such a future. See
  #1392.
• Add multi_knapsack() generator function to dimod.generators.
• Add quadratic_knapsack() generator function to dimod.generators.

Upgrade Notes

• Drop support for Python 3.8.

Bug Fixes

• Fix warnings caused by using deprecated type aliases.