version updates for 6.1.0rc0
update pyproject.toml for 6.1.0b0
version changes for v6.0.1
version changes for v6.0.0
version changes for v6.0.0rc0
update release date
version changes for v5.24.0
version changes for v5.23.0
version changes for v5.22.0
version changes for v5.21.0