# RCSB_UTILS_STRUCT HISTORY

  3-Apr-2019  - V0.10 Package created
  5-Apr-2019  - V0.11 Incorporated SCOPe and CATH utilties and tests
  6-Apr-2019  - V0.12 Deliver explicit residue ranges
 10-Apr-2019  - V0.13 Simplify SCOP parent tree to named nodes, add sccs to data payload
 16-Apr-2019    V0.14 Cast all types in tree node lists to string and remove lineage
 17-Apr-2019    V0.15 Adjust parent node attributes
 24-Apr-2019    V0.16 Exclude synthetic SCOP root node from export tree node list
 22-Jun-2019    V0.17 Update development workflow
 13-Jun-2019    V0.18 Improve Py27 character encoding compatibility
 14-Aug-2019    V0.19 Adjust cache management
 29-Aug-2019    V0.20 Add ScopClassificationProvider() and CathClassificationProvider()
 23-Nov-2019    V0.21 Move pipeline to py38
 10-Jan-2020    V0.22 Add fallback data source targets for CATH
 28-Jan-2020    V0.23 Increment the SCOPe version
  3-Feb-2020    V0.24 Update dependencies
 25-Jun-2020    V0.25 Increment the SCOPe version