I have an object inherits ATTRTABLE::#'Attribute Handlers'#. but after upgraded to 16.2.5 the module 'OpenText Attribute Extension' has to be uninstalled and OT support only mentioned it merged into core package. Appreciate for help.
Nico
'ATTRTABLE::#'Attribute Handlers'#' is moved to 'LLIAPI::Attribute Handlers', you can inherit this now.