Identical commit and content to v0.6.0 (main HEAD fa0ce9c).  The
v0.6.0 tag was retagged during release prep to include PRs #6 and
earlier v0.6.0 wheels (PRs #4 and #5 only) to PyPI.  PyPI's
filename immutability blocks re-upload under the same version, so
v0.6.1 carries the corrected build (PRs #4 + #5 + #6 + #7) under
a fresh version label.

The v0.6.0 GitHub tag continues to point at the correct commit
(fa0ce9c); only the PyPI listing for 0.6.0 is stale.  Consider
yanking 0.6.0 on PyPI via the web UI to steer fresh installs to
0.6.1.