The Little Rock Daily Record stopped publishing its crossword puzzle online, but Jalkut added crosswords from the Chicago Reader, Onion AV Club, and Chronicle of Higher Education to replace it. The update also addresses bugs with puzzle opening and printing.
The update is available from Red Sweater's website, or from within the application.
Also, on his blog, Jalkut mentioned forthcoming updates to MarsEdit, after working with Tumblr to improve their API. He plans to release an update, version 2.3 with Tumblr support, "as soon as possible."