"Following four years of highly charged debate, the rules for publication of scientific names of animals have been changed to allow electronic publications to meet the requirements of the stringent International Code of Zoological Nomenclature. In a landmark decision, the International Commission on Zoological Nomenclature (ICZN) has passed an amendment to its rules that means a publication in an electronic-only scientific journal will be ‘legitimate’ if it meets criteria of archiving and the publication is registered on the ICZN’s official online registry, ZooBank."
From ICZN Amendment on electronic publication
Short press release
Long press release
Read the amendment at ZooKeys