The release reflected on [Anaconda](https://anaconda.org/hjkgroup/molsimplify/files) for v1.5.0 refers to an untagged version of molSimplify (commit 31ae03e) published June 2020 (which would correspond to v1.1.5-alpha).
**Full Changelog**: https://github.com/hjkgrp/molSimplify/compare/1.1.3-alpha...v1.1.6-alpha