EDIT

fix #8326 update label for blocking name and isonym relationships (update script)

fix #9124 add meter to altitude (update script)

fix #9120 update flowering period as supports temporal data (update script)

fix #9121 add abbrevLabel and symbol to features flowering and fruiting (update script)

fix #9062 remove StatisticalMeasurementValue.value_old

fix #9082 fix empty partials_start and partials_end handling

fix #9094 update TaxonNode.source from IdentifiableSource to DescriptionElementSource

ref #6581 move references to sources for NomenclaturalStatus, NameRelationship, TaxonRelationship, HybridRelationship, TypeDesignation and TaxonName.nomenclaturalReference

add base functionality for model update 5.15.2 -> 5.18.0

cleanup