Date: Mon, 24 Mar 2008 08:37:25 -0400

The file...
ftp://elsie.nci.nih.gov/pub/tzdata2008b.tar.gz
...is now available; this reflects the changes circulated last week on
the time zone mailing list (including renaming Asia/Calcutta to
Asia/Kolkata, with a backward link provided).

It's the season for changes, and I'm still hoping to get good
documentation on what happened in Venezuela earlier this year, so expect
a tzdata2008c.tar.gz fairly soon.