Tag v0.40.0

Tag v0.39.0 (`SyncResult`, bug fixes)

Tag v0.38.6 (test harness tweak)

Tag v0.38.5 (test harness tweak)

Tag v0.38.4 (test harness tweak, attempt 2)

Tag v0.38.3 (test harness tweak for git)

Tag v0.38.2 (PyPI Trusted Publisher)

Tag v0.38.1 (doc fixes)

Tag v0.38.0 (Additional git commands)

Tag v0.38.0a0