What's Changed
* Bug fix, performance improvements (quri-parts-itensor) by toru4838 in https://github.com/QunaSys/quri-parts/pull/240
* Fix overlap estimator bug by ThomasenQunasys in https://github.com/QunaSys/quri-parts/pull/250
* Add a dependency on scipy to quri-parts-core by toru4838 in https://github.com/QunaSys/quri-parts/pull/252
**Full Changelog**: https://github.com/QunaSys/quri-parts/compare/v0.15.0...v0.15.1