What's Changed
* 8 more efficient merging by williamhowardsnyder in https://github.com/matsengrp/historydag/pull/10 (Merging of many DAGs is now much more efficient)
* Indexing Histories by clarisw in https://github.com/matsengrp/historydag/pull/14 (history DAGs are now indexable, iterable containers, which support the `|` union operator (equivalent to `merge` method))
* Supertrees by willdumm in https://github.com/matsengrp/historydag/pull/12 (A history DAG may now be constructed from trees with different leaf label sets, as of #12. However, each tree's leaves must still be labeled uniquely)
New Contributors
* williamhowardsnyder made their first contribution in https://github.com/matsengrp/historydag/pull/10
* clarisw made their first contribution in https://github.com/matsengrp/historydag/pull/14
**Full Changelog**: https://github.com/matsengrp/historydag/compare/v0.1.3...v1.0.0