v2.21.0

@esri/arcgis-rest-feature-layer

• New Features
  • arcgis-rest-types: add editingInfo to ILayerDefinition e5467f0b

@esri/arcgis-rest-portal

• Bug Fixes
  • arcgis-rest-portal: make `layers` parameter of `IExportParameters` optional 0b584e66

@esri/arcgis-rest-service-admin

• New Features
  • service-admin: add updateServiceDefinition method 63c2bc09

@esri/arcgis-rest-types

• New Features
  • arcgis-rest-types: add editingInfo to ILayerDefinition e5467f0b

@esri/arcgis-rest-auth

• New Features
  • arcgis-rest-auth: add validateAppAccess function and UserSession method 2478ea56
  • auth: add functions to help with removal of esri_auth cookie eb5abae9