Just wanted to pass along that I have downloaded all the "Beta" updates for the K3, KAT500 and KPA500 and all works well. I worked some the contest this weekend with no issues. The KAT500 does search a bit more often but seems to find a better match condition in the process which is good in my book.
With all the concerns recently expressed, I just wanted to pass along some positive praise to the Elecraft folks.
Bill - W0BBI