"The changes in this release are as follows: This release is case-insensitive with header keywords." There is a files/imapsync-1.182-gentoo.patch which may need updating or may no longer be needed against upstream. Thanks
Oops, looks like this was forgotten for a while - Tuan Van got missing. Anyway, I just added 1.217 to the tree, and cleaned up old patches in FILESDIR.