Whats with all the catchup options?
Traditionally, “catchup” in newsreaders means to update the read count to the last article seen. If you look at the newsrc, you’ll see a bunch of number like 1-50,55,65-80. Each article is assigned a number by the server, and these numbers in the newsrc indicate which articles you have read. When you do a catchup, the program sets this to 1-