Ethan-
Thanks for the notification.
On 12/14/12 9:15 PM, Ethan Davis wrote:
We plan to upgrade the Unidata TDS to 4.3 shortly after IDV 4.0 is
released. We hope this will occur in the next few weeks but will
provide more information on the timeline as we move forward. In the
mean time, please test your scripts and tools against the Unidata Test
TDS [4].
What does "shortly after" mean?  While a 4.0 alpha release is available 
in the nightly build, some IDV users might be reluctant to use an alpha 
release.  I'm concerned that "real world" use will uncover more 
problems, particularly with local grib files.
While I've been working closely with the IDV Development Team on getting 
the necessary code changes, IDV 4.0 still needs work to get it right and 
lots of testing.  The code changes also affect the McIDAS-V developers 
and users.  So, I hope that once IDV 4.0 is released, there will be a 
significant amount of time (1 month?) for users to download, install and 
test it before a switch occurs on motherlode.
Don
--
Don Murray
NOAA/ESRL/PSD and CIRES
303-497-3596
http://www.esrl.noaa.gov/psd/people/don.murray/