BinaryBoy's reply to The Dead Senator #15518 @
Yes, this is the new way. Right now there are no plans to import the old cache, although I'm still considering it. In cases where the "download extended headers" option was unchecked, this will be impossible.
As you mentioned, those files were getting pretty huge. The old system was designed when newsgroups had much less than a million headers. The new method sends headers directly to the cache without any merging. The "2" folder allows the original to be preserved in case you want to install an older version of Binary Boy.
The two letter folder distributes the files more evenly to try to avoid reaching directory limits in older file systems (which shouldn't be used anyway). They're actually the first and last letters of the newsgroup name.
Sending you a PM as well.