This morning's 0.16.1+ development snapshot is up:
http://armedbear.org/j.zip (source and documentation)
http://armedbear.org/j-jar.zip (just j.jar)
For IMAP, the check mail background task now just polls via NOOP,
which is the very most efficient thing to do (short of IDLE, which is
an optional extension).
If you do Shift G in an IMAP mailbox (mailboxGetNewMessages), j will
actually request the headers ("uid fetch n:*"), even if it thinks it
doesn't have to. This is a tad less efficient in the no-new-messages
case, but it's a way to forcibly re-synchronize things if you think j
is confused about the message count. (Such confusion would be a bug
and shouldn't happen, and it hasn't happened in ~16 hours of testing
with the Linux kernel list, but you never know.)
In addition, j now generates the appropriate "References" header when
you reply to a message, which is needed to support sorting by thread
on the receiving end.
I've also fixed a few minor bugs introduced in the last couple of
Thanks for your support.