:paperclip: active_admin_import is based on activerecord-import gem - the most efficient way to import for ActiveAdmin
Full Changelog: https://github.com/activeadmin-plugins/active_admin_import/compare/v4.2.0...v5.1.0
activerecord-import
to 0.27.0 #161>= 1.0.0.pre2
batch_slice_columns
method); WiKi