hi jerzy i am sorry but i am having trouble following your logic above i don't want to be dogmatic about this for me it is strictly a practical matter i use the as of primarily for temporary situations and by temporary i mean a few months or for example when i refer to something taking place within a half year such as the publication of a book in principal it could also be used in this and many other places but let's not abuse the thing if you look at special whatlinkshere target as of you will see that there on the order of five hundred links which haven't updated if there are two or three thousand i assure you no one is going to check them all if hm published a new edition every three months i would wholehartedly agree but we are talking about eight to ten years hence the text as of it remains the current edition is going to go out of date far sooner than is necessary simply listing the fourth edition and its publication date is imo quite sufficient as for current and most recent i would have thought that they were virtually synonmous in this context perhaps you could explain to me what the difference is feb utc