remove python 2.7 dependencies support python 3.8 pins pandas<1.1.0, numpy<1.19.0
1.80.4
Stable version in use at Man Group.
1.80.3
VersionStore : add a named index on versions table to prevent an increase in the longest fully qualified index name, which can break the 127 char limit. This resolves the issue first seen in release v1.80.2