updates-testing release schedule

[Matt H.]

Hi guys
 
What is the release schedule for updates currently in updates testing?
i.e. kernel-2.4.22-1.2154.nptl has been in there since 13th Jan and some
such as postfix-2.0.16-1.i386.rpm have been there since late Nov. Is it
all part of the QA process that governs some packages taking months to
reach updates released? 
Any idea when kernel 2154 or 2163 will be released?

Thank you
-- 
Matt